Growatt error codes explained

The inverter measured low insulation resistance between the solar/battery DC circuits and earth. In Australia this is treated as an earth fault alarm, and the system must be checked by a licensed electrician.

What you can do

• Do not touch panels, DC cables, rooftop isolators or the inverter's DC connectors
• If it clears by itself after the weather dries out, still report it, because repeated alarms point to a developing fault
• Book an electrician or call us. An insulation test needs specialist equipment
• If you see smoke, burn marks or smell burning, keep clear and call 000

SPH 3000-6000TL BL-UP hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

The backup/EPS (off-grid) output is overloaded or abnormal, so the system has limited or switched off backup power.

What you can do

• Switch off large appliances on backup circuits
• Wait for the system to retry (some models lock out for a period after repeated overloads)
• If it trips with only small loads on, or you suspect a short circuit, call an electrician

SPH 3000-6000TL BL-UP hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

SPH 3000-6000TL BL-UP hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

There is a firmware, model or configuration mismatch between parts of the system, so it can't run normally.

What you can do

• Don't try to reflash firmware yourself unless the manufacturer's app tells you to and it's an owner function
• Call us. We can arrange a firmware update or reconfiguration with the manufacturer

SPH 3000-6000TL BL-UP hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter measured leakage (residual) current flowing to earth above its safety limit and disconnected. This can indicate damaged insulation somewhere in the system.

What you can do

• Don't touch cabling or equipment
• If it happens repeatedly, or together with an insulation/isolation alarm, call an electrician or us promptly

SPH 3000-6000TL BL-UP hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter is running too hot, so it has reduced output or paused to protect itself.

What you can do

• Make sure nothing is stacked against or in front of the inverter, and leave the manufacturer's clearances around it
• Gently clear dust or leaves from the outside of the vents, without opening the unit or spraying water
• Let it cool. It normally resumes by itself
• If it keeps happening on mild days, call us

SPH 3000-6000TL BL-UP hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

The DC voltage coming from the solar panels is higher than the inverter is rated for. Over-voltage can damage the inverter.

What you can do

• Do not touch the DC isolator or cables unless the manufacturer's owner shutdown tells you to
• Call us. The string design needs to be checked by a licensed installer

SPH 3000-6000TL BL-UP hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter measured leakage (residual) current flowing to earth above its safety limit and disconnected. This can indicate damaged insulation somewhere in the system.

What you can do

• Don't touch cabling or equipment
• If it happens repeatedly, or together with an insulation/isolation alarm, call an electrician or us promptly

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The DC voltage coming from the solar panels is higher than the inverter is rated for. Over-voltage can damage the inverter.

What you can do

• Do not touch the DC isolator or cables unless the manufacturer's owner shutdown tells you to
• Call us. The string design needs to be checked by a licensed installer

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter measured low insulation resistance between the solar/battery DC circuits and earth. In Australia this is treated as an earth fault alarm, and the system must be checked by a licensed electrician.

What you can do

• Do not touch panels, DC cables, rooftop isolators or the inverter's DC connectors
• If it clears by itself after the weather dries out, still report it, because repeated alarms point to a developing fault
• Book an electrician or call us. An insulation test needs specialist equipment
• If you see smoke, burn marks or smell burning, keep clear and call 000

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The mains voltage the inverter measured was outside the limits allowed for your network, so it disconnected or reduced output to protect the grid. This is usually a grid condition, not a faulty inverter.

What you can do

• Wait. The inverter reconnects by itself once voltage is back within limits
• Note the time of day it happens. If it happens most sunny days, tell us, because it may need a voltage check or a report to your network operator
• Don't try to change grid protection settings yourself. In Australia they are set to AS/NZS 4777.2 and your network operator's requirements

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter cannot see a normal mains supply, so it has stopped exporting to the grid (and a hybrid system may switch to backup).

What you can do

• Check whether the rest of the house (or your neighbours) has power, and check your network operator's outage map
• Check the switchboard for a tripped solar supply main switch or inverter breaker. Only reset it once. If it trips again, leave it off and call an electrician
• Wait. Once normal grid power is back, the inverter normally reconnects by itself after its safety checks (often a few minutes)
• If grid power is normal but the alarm stays, call us

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter detected a problem with the earth (protective earth/PE) or with the neutral-to-earth connection. A sound earth is essential for electrical safety.

What you can do

• Do not touch the inverter, frames or cabling
• Leave the system off if it has shut down. Call a licensed electrician or us to test the earthing

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid frequency moved outside the allowed range, so the inverter disconnected or reduced output as the standards require.

What you can do

• Wait for automatic reconnection
• If it happens often, record the times and contact us

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A surge protection device (SPD) inside or connected to the inverter is reporting a fault, often after a lightning storm or grid surge.

What you can do

• Don't open the inverter
• Call us. SPDs must be replaced by a licensed electrician

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

Growatt's manual describes this as a short circuit on solar input PV1 or PV2 and suggests checking panel polarity, which is a job for an electrician.

What you can do

• Do not touch any DC wiring
• Call us or a licensed electrician

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The system has received a shutdown or control signal, or a protective input has been triggered (for example an emergency stop, demand response or external switch).

What you can do

• Check whether anyone operated an emergency stop or shutdown switch on purpose
• If so, follow the manual to release it only when it is safe
• If nobody did, call us

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A monitoring or communication accessory (Wi-Fi/4G/data logger, display or clock) is reporting a problem. This usually doesn't stop the system generating.

What you can do

• Restart your home router and check it reaches the inverter location
• If you changed router or Wi-Fi password, the dongle needs reconfiguring (see the manufacturer's app guide or ask us)
• If generation looks normal but the alarm persists, call us

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

There is a firmware, model or configuration mismatch between parts of the system, so it can't run normally.

What you can do

• Don't try to reflash firmware yourself unless the manufacturer's app tells you to and it's an owner function
• Call us. We can arrange a firmware update or reconfiguration with the manufacturer

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter detected too much DC current in its AC output, which the grid standards don't allow, so it disconnected.

What you can do

• If it happened once and the system recovered, keep an eye on it
• If it repeats, call us

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter is running too hot, so it has reduced output or paused to protect itself.

What you can do

• Make sure nothing is stacked against or in front of the inverter, and leave the manufacturer's clearances around it
• Gently clear dust or leaves from the outside of the vents, without opening the unit or spraying water
• Let it cool. It normally resumes by itself
• If it keeps happening on mild days, call us

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter's arc-fault detection has picked up a pattern that looks like electrical arcing on the DC (solar) side, which can be a fire risk. The inverter shuts down DC power flow as a precaution.

What you can do

• Do not reset it repeatedly and do not touch DC cables or isolators
• If you see smoke or flames or smell burning, keep clear and call 000
• Call us or a licensed electrician to inspect the DC wiring before the system is restarted

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MIN TL-X / MIN TL-XH / MIC TL-X (single-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

One solar string is behaving differently from the others (lower output or current flowing the wrong way), which often points to a panel, connector or configuration issue.

What you can do

• From the ground, check for new shading (trees, new structures) or obvious debris
• Compare string readings in your monitoring app if available
• Book a service check if it continues

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A surge protection device (SPD) inside or connected to the inverter is reporting a fault, often after a lightning storm or grid surge.

What you can do

• Don't open the inverter
• Call us. SPDs must be replaced by a licensed electrician

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A solar string or the battery appears to be connected with positive and negative swapped.

What you can do

• Do not touch any DC wiring
• Call us or a licensed electrician

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The system has received a shutdown or control signal, or a protective input has been triggered (for example an emergency stop, demand response or external switch).

What you can do

• Check whether anyone operated an emergency stop or shutdown switch on purpose
• If so, follow the manual to release it only when it is safe
• If nobody did, call us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A surge protection device (SPD) inside or connected to the inverter is reporting a fault, often after a lightning storm or grid surge.

What you can do

• Don't open the inverter
• Call us. SPDs must be replaced by a licensed electrician

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A monitoring or communication accessory (Wi-Fi/4G/data logger, display or clock) is reporting a problem. This usually doesn't stop the system generating.

What you can do

• Restart your home router and check it reaches the inverter location
• If you changed router or Wi-Fi password, the dongle needs reconfiguring (see the manufacturer's app guide or ask us)
• If generation looks normal but the alarm persists, call us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The DC voltage coming from the solar panels is higher than the inverter is rated for. Over-voltage can damage the inverter.

What you can do

• Do not touch the DC isolator or cables unless the manufacturer's owner shutdown tells you to
• Call us. The string design needs to be checked by a licensed installer

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A solar string or the battery appears to be connected with positive and negative swapped.

What you can do

• Do not touch any DC wiring
• Call us or a licensed electrician

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter cannot see a normal mains supply, so it has stopped exporting to the grid (and a hybrid system may switch to backup).

What you can do

• Check whether the rest of the house (or your neighbours) has power, and check your network operator's outage map
• Check the switchboard for a tripped solar supply main switch or inverter breaker. Only reset it once. If it trips again, leave it off and call an electrician
• Wait. Once normal grid power is back, the inverter normally reconnects by itself after its safety checks (often a few minutes)
• If grid power is normal but the alarm stays, call us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The mains voltage the inverter measured was outside the limits allowed for your network, so it disconnected or reduced output to protect the grid. This is usually a grid condition, not a faulty inverter.

What you can do

• Wait. The inverter reconnects by itself once voltage is back within limits
• Note the time of day it happens. If it happens most sunny days, tell us, because it may need a voltage check or a report to your network operator
• Don't try to change grid protection settings yourself. In Australia they are set to AS/NZS 4777.2 and your network operator's requirements

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid frequency moved outside the allowed range, so the inverter disconnected or reduced output as the standards require.

What you can do

• Wait for automatic reconnection
• If it happens often, record the times and contact us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The backup/EPS (off-grid) output is overloaded or abnormal, so the system has limited or switched off backup power.

What you can do

• Switch off large appliances on backup circuits
• Wait for the system to retry (some models lock out for a period after repeated overloads)
• If it trips with only small loads on, or you suspect a short circuit, call an electrician

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

A cooling fan isn't working properly, which can make the unit run hot and reduce output.

What you can do

• From outside, check that nothing is blocking the vents
• Don't open the unit
• Call us to arrange a fan check or replacement

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

There is a firmware, model or configuration mismatch between parts of the system, so it can't run normally.

What you can do

• Don't try to reflash firmware yourself unless the manufacturer's app tells you to and it's an owner function
• Call us. We can arrange a firmware update or reconfiguration with the manufacturer

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter's arc-fault detection has picked up a pattern that looks like electrical arcing on the DC (solar) side, which can be a fire risk. The inverter shuts down DC power flow as a precaution.

What you can do

• Do not reset it repeatedly and do not touch DC cables or isolators
• If you see smoke or flames or smell burning, keep clear and call 000
• Call us or a licensed electrician to inspect the DC wiring before the system is restarted

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter measured leakage (residual) current flowing to earth above its safety limit and disconnected. This can indicate damaged insulation somewhere in the system.

What you can do

• Don't touch cabling or equipment
• If it happens repeatedly, or together with an insulation/isolation alarm, call an electrician or us promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The DC voltage coming from the solar panels is higher than the inverter is rated for. Over-voltage can damage the inverter.

What you can do

• Do not touch the DC isolator or cables unless the manufacturer's owner shutdown tells you to
• Call us. The string design needs to be checked by a licensed installer

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter measured low insulation resistance between the solar/battery DC circuits and earth. In Australia this is treated as an earth fault alarm, and the system must be checked by a licensed electrician.

What you can do

• Do not touch panels, DC cables, rooftop isolators or the inverter's DC connectors
• If it clears by itself after the weather dries out, still report it, because repeated alarms point to a developing fault
• Book an electrician or call us. An insulation test needs specialist equipment
• If you see smoke, burn marks or smell burning, keep clear and call 000

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The mains voltage the inverter measured was outside the limits allowed for your network, so it disconnected or reduced output to protect the grid. This is usually a grid condition, not a faulty inverter.

What you can do

• Wait. The inverter reconnects by itself once voltage is back within limits
• Note the time of day it happens. If it happens most sunny days, tell us, because it may need a voltage check or a report to your network operator
• Don't try to change grid protection settings yourself. In Australia they are set to AS/NZS 4777.2 and your network operator's requirements

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter has detected an AC wiring problem, for example active and neutral swapped or a connection made the wrong way round.

What you can do

• Do not touch any wiring
• Leave the system as it is and book a licensed electrician (or call us)

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter cannot see a normal mains supply, so it has stopped exporting to the grid (and a hybrid system may switch to backup).

What you can do

• Check whether the rest of the house (or your neighbours) has power, and check your network operator's outage map
• Check the switchboard for a tripped solar supply main switch or inverter breaker. Only reset it once. If it trips again, leave it off and call an electrician
• Wait. Once normal grid power is back, the inverter normally reconnects by itself after its safety checks (often a few minutes)
• If grid power is normal but the alarm stays, call us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter detected a problem with the earth (protective earth/PE) or with the neutral-to-earth connection. A sound earth is essential for electrical safety.

What you can do

• Do not touch the inverter, frames or cabling
• Leave the system off if it has shut down. Call a licensed electrician or us to test the earthing

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid frequency moved outside the allowed range, so the inverter disconnected or reduced output as the standards require.

What you can do

• Wait for automatic reconnection
• If it happens often, record the times and contact us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The backup/EPS (off-grid) output is overloaded or abnormal, so the system has limited or switched off backup power.

What you can do

• Switch off large appliances on backup circuits
• Wait for the system to retry (some models lock out for a period after repeated overloads)
• If it trips with only small loads on, or you suspect a short circuit, call an electrician

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter isn't getting correct readings from its energy meter or current sensor (CT). This affects export limiting, battery charging and monitoring accuracy.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter detected too much DC current in its AC output, which the grid standards don't allow, so it disconnected.

What you can do

• If it happened once and the system recovered, keep an eye on it
• If it repeats, call us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter detected too much DC current in its AC output, which the grid standards don't allow, so it disconnected.

What you can do

• If it happened once and the system recovered, keep an eye on it
• If it repeats, call us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

There is a firmware, model or configuration mismatch between parts of the system, so it can't run normally.

What you can do

• Don't try to reflash firmware yourself unless the manufacturer's app tells you to and it's an owner function
• Call us. We can arrange a firmware update or reconfiguration with the manufacturer

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter is running too hot, so it has reduced output or paused to protect itself.

What you can do

• Make sure nothing is stacked against or in front of the inverter, and leave the manufacturer's clearances around it
• Gently clear dust or leaves from the outside of the vents, without opening the unit or spraying water
• Let it cool. It normally resumes by itself
• If it keeps happening on mild days, call us

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

There is a firmware, model or configuration mismatch between parts of the system, so it can't run normally.

What you can do

• Don't try to reflash firmware yourself unless the manufacturer's app tells you to and it's an owner function
• Call us. We can arrange a firmware update or reconfiguration with the manufacturer

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

The equipment's self-checks found an internal problem (for example relays, measuring circuits, internal communication or power electronics). Some of these clear by themselves after a one-off event, but repeated alarms usually need a technician.

What you can do

• Note the code, time and whether it clears by itself
• If your installer showed you the owner shutdown/restart procedure from the manufacturer's manual (summarised at the top of this page), you may restart the system once. Do not open covers or touch cabling.
• If the code returns or the system stays offline, call us. Internal faults are a warranty/technician job

MOD TL3-X (three-phase) · Guide only. All work must be done by a licensed electrician. Get help with this code

On MIN 7-10k TL-X inverters that use a cable CT for export limiting, the inverter isn't getting a valid CT signal. Growatt says this warning was removed in DSP firmware AMAA04xx and later, and recommends a smart meter instead of a cable CT.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

Growatt Australia Helpdesk articles (MIC/MIN/MOD/SPH with smart meter) · Guide only. All work must be done by a licensed electrician. Get help with this code

The readings coming from the smart meter aren't changing, which usually means the CT clamp isn't on the right cable or the meter link has a problem.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

Growatt Australia Helpdesk articles (MIC/MIN/MOD/SPH with smart meter) · Guide only. All work must be done by a licensed electrician. Get help with this code

The meter reports more export than the inverter is producing. Typical causes are a CT clamp or meter wiring the wrong way round, or another inverter on site.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

Growatt Australia Helpdesk articles (MIC/MIN/MOD/SPH with smart meter) · Guide only. All work must be done by a licensed electrician. Get help with this code

Export limiting or power sensing is switched on, but the inverter receives no data from the smart meter.

What you can do

• Check the app. Generation may still be running normally
• Don't open the switchboard
• Call us to check the meter/CT wiring. If your system has an export limit, this needs fixing promptly

Growatt Australia Helpdesk articles (MIC/MIN/MOD/SPH with smart meter) · Guide only. All work must be done by a licensed electrician. Get help with this code

Growatt Australia says that when an SPM restarts some time after a normal shutdown, it may briefly show start-up error 69, which normally clears by itself after about 10 minutes.

What you can do

• Wait about 10 minutes for it to clear
• If it does not clear, call us

SPM 8000-10000TL-HU hybrid (Helpdesk troubleshooting guide) · Guide only. All work must be done by a licensed electrician. Get help with this code

Growatt Australia says that when an SPM restarts some time after a normal shutdown, it may briefly show start-up error 90, which normally clears by itself after about 10 minutes.

What you can do

• Wait about 10 minutes for it to clear
• If it does not clear, call us

SPM 8000-10000TL-HU hybrid (Helpdesk troubleshooting guide) · Guide only. All work must be done by a licensed electrician. Get help with this code

Meter1 communication fault

What you can do

• Check the monitoring app for the alarm and whether export/consumption readings look wrong
• Restart your home router if the meter talks over Wi-Fi or LAN
• Call your installer - meter and CT wiring is inside the switchboard and must be checked by a licensed electrician

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

The battery cannot charge or discharge normally

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Meter1 wiring error

What you can do

• Check the monitoring app for the alarm and whether export/consumption readings look wrong
• Restart your home router if the meter talks over Wi-Fi or LAN
• Call your installer - meter and CT wiring is inside the switchboard and must be checked by a licensed electrician

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Meter2 communication fault

What you can do

• Check the monitoring app for the alarm and whether export/consumption readings look wrong
• Restart your home router if the meter talks over Wi-Fi or LAN
• Call your installer - meter and CT wiring is inside the switchboard and must be checked by a licensed electrician

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Meter Communication fault

What you can do

• Check the monitoring app for the alarm and whether export/consumption readings look wrong
• Restart your home router if the meter talks over Wi-Fi or LAN
• Call your installer - meter and CT wiring is inside the switchboard and must be checked by a licensed electrician

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery temperature out of specified range for charge or discharge

What you can do

• Check from a safe distance for heat, swelling, hissing, a burning smell or smoke - if you notice any, keep everyone away and call 000
• If nothing looks wrong, make sure the battery area is shaded and ventilated and nothing is stacked against it
• Let the battery cool; most units recover by themselves
• If the alarm keeps returning, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid voltage fault. Please refer to the local grid standard for more details about the grid voltage.

What you can do

• This is usually caused by the mains supply, not the solar system
• The inverter normally reconnects by itself once grid voltage is back in range
• If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid frequency fault. Please refer to the local grid standard for more details about the grid frequency.

What you can do

• This is caused by the mains frequency moving outside the allowed range, usually briefly
• The inverter reconnects by itself once the grid is stable
• If it keeps happening, note the times and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Communication fault

What you can do

• Check the app - the battery may show as offline or with no state of charge
• Restart the system once using the shutdown and start-up steps in your owner's manual (battery last off, first on, unless your manual says otherwise)
• If the alarm comes back, call your installer - battery communication cables must be checked by them

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery terminals reversed

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

EPS output overload warning. If this warning occurred three times, the off-grid function will be locked for one hour.

What you can do

• Turn off some large appliances (air-conditioners, ovens, kettles, pool pumps) - backup outputs have a power limit
• The system usually recovers by itself once the load drops
• If it keeps happening with normal loads, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

No Utility

What you can do

• Check whether the rest of your house or street has power, and check your network operator's outage map
• Check the switchboard for a tripped solar/inverter breaker - reset it once only; if it trips again, leave it off and call an electrician
• Once normal power is back the inverter usually reconnects on its own within a few minutes
• If the power is normal but the alarm stays, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

High DC component in the output power. Please refer to the local grid standard for disconnection time when the output DC current is too high.

What you can do

• Restart the system once using the owner shutdown/start-up steps in your manual
• If it comes back, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery Voltage higher than 560V

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery Voltage lower than 100 V

What you can do

• This normally means the battery is low or has reached its reserve level
• Let the system recharge from solar or the grid - check the state of charge in the app
• If the battery never charges or stays at 0% for more than a day of sunshine, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

BMS report warning

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

BMS report error

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

EPS output voltage low

What you can do

• Turn off some large appliances (air-conditioners, ovens, kettles, pool pumps) - backup outputs have a power limit
• The system usually recovers by itself once the load drops
• If it keeps happening with normal loads, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

LCD Display

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

AC V Outrange (1)

What you can do

• This is usually caused by the mains supply, not the solar system
• The inverter normally reconnects by itself once grid voltage is back in range
• If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

AC F Outrange

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

No AC Connection

What you can do

• Check whether the rest of your house or street has power, and check your network operator's outage map
• Check the switchboard for a tripped solar/inverter breaker - reset it once only; if it trips again, leave it off and call an electrician
• Once normal power is back the inverter usually reconnects on its own within a few minutes
• If the power is normal but the alarm stays, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

EPS Volt Low

What you can do

• Turn off some large appliances (air-conditioners, ovens, kettles, pool pumps) - backup outputs have a power limit
• The system usually recovers by itself once the load drops
• If it keeps happening with normal loads, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

EPS Over Load

What you can do

• Turn off some large appliances (air-conditioners, ovens, kettles, pool pumps) - backup outputs have a power limit
• The system usually recovers by itself once the load drops
• If it keeps happening with normal loads, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery reversed

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery Open

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Bat Voltage Low

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Bat Voltage High

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

BMS COM Fault

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Output High DCI

What you can do

• Restart the system once using the owner shutdown/start-up steps in your manual
• If it comes back, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

PV Isolation Low

What you can do

• Do not touch the panels, rooftop isolators or DC cables
• Note the code and whether it appears in wet weather or early morning - this helps the electrician
• If it clears by itself once things dry out, still let us know if it keeps returning
• Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

PV Voltage High

What you can do

• Do not touch the DC isolators or cables
• Note the time - this often shows on cold, very sunny mornings
• Call your installer - the panel strings may need to be checked against the inverter's limits

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

OP Short Fault

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Pv1 short

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Pv2 short

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

CT LN Reversed

What you can do

• Check the monitoring app for the alarm and whether export/consumption readings look wrong
• Restart your home router if the meter talks over Wi-Fi or LAN
• Call your installer - meter and CT wiring is inside the switchboard and must be checked by a licensed electrician

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

Over Load

What you can do

• Turn off some large appliances (air-conditioners, ovens, kettles, pool pumps) - backup outputs have a power limit
• The system usually recovers by itself once the load drops
• If it keeps happening with normal loads, call your installer

SPH 4000-10000TL3 BH-UP three-phase hybrid · Guide only. All work must be done by a licensed electrician. Get help with this code

PV1 or PV2 Circuit short

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Dryconnect function abnormal

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Pv1 or PV2 boost broken

What you can do

• Check solar generation in the app compared with similar days
• Do not touch the DC isolators, cables or connectors, and don't go on the roof
• If it doesn't clear by itself, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

USB over-current

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Inverter communicates with Meter abnormal

What you can do

• Check the monitoring app for the alarm and whether export/consumption readings look wrong
• Restart your home router if the meter talks over Wi-Fi or LAN
• Call your installer - meter and CT wiring is inside the switchboard and must be checked by a licensed electrician

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

EEPROM abnormal

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Firmware version is not consistent

What you can do

• Make sure the system is online so it can receive updates
• Restart the system once using the owner steps in your manual
• If the alarm stays, call your installer - settings and firmware must be fixed by them or the manufacturer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Leakage current too high

What you can do

• Keep clear and do not touch the inverter or cabling
• Note the code, date and time
• Call a licensed electrician or Total Solar - this alarm means current may be leaking to earth

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

The DC input voltage is exceeding the maximum tolerable value.

What you can do

• Do not touch the DC isolators or cables
• Note the time - this often shows on cold, very sunny mornings
• Call your installer - the panel strings may need to be checked against the inverter's limits

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Insulation problem

What you can do

• Do not touch the panels, rooftop isolators or DC cables
• Note the code and whether it appears in wet weather or early morning - this helps the electrician
• If it clears by itself once things dry out, still let us know if it keeps returning
• Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Utility grid voltage is out of permissible range.

What you can do

• This is usually caused by the mains supply, not the solar system
• The inverter normally reconnects by itself once grid voltage is back in range
• If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

No AC connection

What you can do

• Check whether the rest of your house or street has power, and check your network operator's outage map
• Check the switchboard for a tripped solar/inverter breaker - reset it once only; if it trips again, leave it off and call an electrician
• Once normal power is back the inverter usually reconnects on its own within a few minutes
• If the power is normal but the alarm stays, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Voltage of Neutral and PE above 30V.

What you can do

• Do not touch the panels, rooftop isolators or DC cables
• Note the code and whether it appears in wet weather or early morning - this helps the electrician
• If it clears by itself once things dry out, still let us know if it keeps returning
• Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Utility grid frequency out of permissible range.

What you can do

• This is caused by the mains frequency moving outside the allowed range, usually briefly
• The inverter reconnects by itself once the grid is stable
• If it keeps happening, note the times and call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Auto test didn't pass.

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Output High DCI

What you can do

• Restart the system once using the owner shutdown/start-up steps in your manual
• If it comes back, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Bus sample fault

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Relay fault

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Over Temperature

What you can do

• Check from a safe distance that the inverter is shaded, has clear space around it and that nothing is blocking the vents
• It usually recovers once it cools down
• If it repeats often or you can hear a noisy/failed fan, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Bus over voltage

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

DSP communicates with M3 abnormal

What you can do

• Check that your home Wi-Fi/internet is working and restart your router
• Wait an hour - monitoring often reconnects by itself
• If the inverter screen also shows a fault, or the alarm stays for more than a day, call your installer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

EEPROM fault

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

The data sampled by the DSP and redundant M3 is not the same

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

GFCI fault

What you can do

• Keep clear and do not touch the inverter or cabling
• Note the code, date and time
• Call a licensed electrician or Total Solar - this alarm means current may be leaking to earth

MIN 2500-6000TL-XH hybrid-ready · Guide only. All work must be done by a licensed electrician. Get help with this code

Discharge under voltage protection

What you can do

• This normally means the battery is low or has reached its reserve level
• Let the system recharge from solar or the grid - check the state of charge in the app
• If the battery never charges or stays at 0% for more than a day of sunshine, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Single cell voltage exceeding threshold for protection threshold.

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Communication loss between hybrid inverter and battery system.

What you can do

• Check that your home Wi-Fi/internet is working and restart your router
• Wait an hour - monitoring often reconnects by itself
• If the inverter screen also shows a fault, or the alarm stays for more than a day, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Cell charge overvoltage alarm

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Turn off any very large loads that were running when the alarm appeared
• Wait - many over-current protections reset automatically
• If it keeps happening, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Check from a safe distance that the inverter is shaded, has clear space around it and that nothing is blocking the vents
• It usually recovers once it cools down
• If it repeats often or you can hear a noisy/failed fan, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This normally means the battery is low or has reached its reserve level
• Let the system recharge from solar or the grid - check the state of charge in the app
• If the battery never charges or stays at 0% for more than a day of sunshine, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This normally means the battery is low or has reached its reserve level
• Let the system recharge from solar or the grid - check the state of charge in the app
• If the battery never charges or stays at 0% for more than a day of sunshine, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This normally means the battery is low or has reached its reserve level
• Let the system recharge from solar or the grid - check the state of charge in the app
• If the battery never charges or stays at 0% for more than a day of sunshine, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This normally means the battery is low or has reached its reserve level
• Let the system recharge from solar or the grid - check the state of charge in the app
• If the battery never charges or stays at 0% for more than a day of sunshine, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Check from a safe distance that the inverter is shaded, has clear space around it and that nothing is blocking the vents
• It usually recovers once it cools down
• If it repeats often or you can hear a noisy/failed fan, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This is usually caused by the mains supply, not the solar system
• The inverter normally reconnects by itself once grid voltage is back in range
• If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This is usually caused by the mains supply, not the solar system
• The inverter normally reconnects by itself once grid voltage is back in range
• If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This is usually caused by the mains supply, not the solar system
• The inverter normally reconnects by itself once grid voltage is back in range
• If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• This is usually caused by the mains supply, not the solar system
• The inverter normally reconnects by itself once grid voltage is back in range
• If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Check the app - the battery may show as offline or with no state of charge
• Restart the system once using the shutdown and start-up steps in your owner's manual (battery last off, first on, unless your manual says otherwise)
• If the alarm comes back, call your installer - battery communication cables must be checked by them

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Do not touch the panels, rooftop isolators or DC cables
• Note the code and whether it appears in wet weather or early morning - this helps the electrician
• If it clears by itself once things dry out, still let us know if it keeps returning
• Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Check that your home Wi-Fi/internet is working and restart your router
• Wait an hour - monitoring often reconnects by itself
• If the inverter screen also shows a fault, or the alarm stays for more than a day, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Check the battery status and any extra alarms in the app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If the alarm comes back, or the battery is hot, swollen, noisy or smells, keep clear and call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Check the monitoring app for the alarm and whether export/consumption readings look wrong
• Restart your home router if the meter talks over Wi-Fi or LAN
• Call your installer - meter and CT wiring is inside the switchboard and must be checked by a licensed electrician

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code and the battery state of charge shown in the app
• Let the system run - some battery voltage protections clear by themselves after charging or discharging
• If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code, date and time and check the monitoring app
• Restart the system once using the owner shutdown/start-up steps in your manual if it allows
• If it comes back, call your installer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Do not touch the panels, rooftop isolators or DC cables
• Note the code and whether it appears in wet weather or early morning - this helps the electrician
• If it clears by itself once things dry out, still let us know if it keeps returning
• Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code

(t=1S)

What you can do

• Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
• If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

ARK 5.12-25.6H-A1 (ARK XH) battery · Guide only. All work must be done by a licensed electrician. Get help with this code