Sigenergy error codes explained

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

SigenStor / Sigen Hybrid inverter (PV & grid side) · 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

SigenStor battery & energy-storage (DC) module · 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

SigenStor battery & energy-storage (DC) module · Guide only. All work must be done by a licensed electrician. Get help with this code

The battery module or its power module inside the SigenStor is too hot (sub-ID1 power module, ID2 battery module), so operation is limited or stopped.

What you can do

• Keep clear and do not open or touch the battery
• If you notice smoke, a burning or chemical smell, hissing, swelling or leaking, leave the area, keep others away and call 000
• Otherwise, make sure the space around the battery is clear and shaded, and call us or a licensed electrician to check it

SigenStor battery & energy-storage (DC) module · Guide only. All work must be done by a licensed electrician. Get help with this code

The battery management system has reported a problem with battery voltage, current, cells or internal hardware and has limited or stopped battery operation.

What you can do

• Do not open the battery or touch its terminals
• Note the exact alarm text and time from the app
• Call us. Battery faults should be handled by the installer or manufacturer

SigenStor battery & energy-storage (DC) module · Guide only. All work must be done by a licensed electrician. Get help with this code

The battery is too cold to charge or discharge safely, so it is pausing until it warms up.

What you can do

• Wait for the battery to warm up. Most systems recover automatically
• If it happens often, ask us whether the location or a heating feature (where the model has one) should be reviewed

SigenStor battery & energy-storage (DC) module · Guide only. All work must be done by a licensed electrician. Get help with this code

The battery management system has reported a problem with battery voltage, current, cells or internal hardware and has limited or stopped battery operation.

What you can do

• Do not open the battery or touch its terminals
• Note the exact alarm text and time from the app
• Call us. Battery faults should be handled by the installer or manufacturer

SigenStor battery & energy-storage (DC) module · Guide only. All work must be done by a licensed electrician. Get help with this code

The battery management system has reported a problem with battery voltage, current, cells or internal hardware and has limited or stopped battery operation.

What you can do

• Do not open the battery or touch its terminals
• Note the exact alarm text and time from the app
• Call us. Battery faults should be handled by the installer or manufacturer

SigenStor battery & energy-storage (DC) module · Guide only. All work must be done by a licensed electrician. Get help with this code

The battery management system has reported a problem with battery voltage, current, cells or internal hardware and has limited or stopped battery operation.

What you can do

• Do not open the battery or touch its terminals
• Note the exact alarm text and time from the app
• Call us. Battery faults should be handled by the installer or manufacturer

SigenStor battery & energy-storage (DC) module · 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

Sigen Gateway (backup/grid switching) · 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

• Check the unit isn't in direct sun and its vents and cover aren't blocked
• Wait. Sigenergy says it restarts once temperatures return to normal
• If it repeats, report it through mySigen (Support > troubleshooting) or call us

Sigen Gateway (backup/grid switching) · 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 and sub-ID from the mySigen app
• Restart once using the mySigen app (Settings > turn device off/on), the owner method in the SigenStor Home User Manual
• If the code returns, submit it via the app's Support > troubleshooting page or call us

Sigen Gateway (backup/grid switching) · 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

Sigen Gateway (backup/grid switching) · 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

Sigen Gateway (backup/grid switching) · 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)

Sigen Gateway (backup/grid switching) · 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)

Sigen Gateway (backup/grid switching) · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter saw something abnormal about the grid supply (for example phase loss, imbalance, waveform distortion or loss of mains), so it disconnected as a safety measure.

What you can do

• Check whether you have a partial power outage (some circuits or phases off)
• Wait for automatic reconnection after the grid returns to normal
• If it persists or started after electrical work, call us

Sigen Gateway (backup/grid switching) · 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

Sigen Gateway (backup/grid switching) · Guide only. All work must be done by a licensed electrician. Get help with this code

A problem was detected with a connected generator input (voltage, frequency, wiring or start-up).

What you can do

• Check the generator itself (fuel, its own alarms)
• Call us to check the generator integration

Sigen Gateway (backup/grid switching) · 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

Sigen Gateway (backup/grid switching) · Guide only. All work must be done by a licensed electrician. Get help with this code

A problem was detected with a connected generator input (voltage, frequency, wiring or start-up).

What you can do

• Check the generator itself (fuel, its own alarms)
• Call us to check the generator integration

Sigen Gateway (backup/grid switching) · Guide only. All work must be done by a licensed electrician. Get help with this code

An emergency power-off (EPO) or emergency shutdown signal has been triggered, so the system has stopped on purpose.

What you can do

• Check whether someone pressed the EPO button or triggered an emergency shutdown
• Only release it, as the manual describes, once the reason for the shutdown is resolved and it is safe
• If nobody triggered it, call us

Sigen Gateway (backup/grid switching) · Guide only. All work must be done by a licensed electrician. Get help with this code

The Gateway's bypass switch is reported open/abnormal.

What you can do

• Note the code and sub-ID from the mySigen app
• Restart once using the mySigen app (Settings > turn device off/on), the owner method in the SigenStor Home User Manual
• If the code returns, submit it via the app's Support > troubleshooting page or call us

Sigen Gateway (backup/grid switching) · Guide only. All work must be done by a licensed electrician. Get help with this code

The Gateway's bypass switch is reported switched on (system bypassed).

What you can do

• If nobody has operated the bypass switch, call us

Sigen Gateway (backup/grid switching) · 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

System / communication · Guide only. All work must be done by a licensed electrician. Get help with this code

A problem was detected with a connected generator input (voltage, frequency, wiring or start-up).

What you can do

• Check the generator itself (fuel, its own alarms)
• Call us to check the generator integration

System / communication · Guide only. All work must be done by a licensed electrician. Get help with this code

Sigenergy lists a "CLS malfunction" and says it can be cleared manually in the app. The manual doesn't explain the term further.

What you can do

• Clear it from the mySigen app as Sigenergy describes
• If it returns, call us

System / communication · Guide only. All work must be done by a licensed electrician. Get help with this code

The inverter software version does not match The equipment's internal software version does not match If the upgrade is unsuccessful, please submit fault feedback on the APP-service-troubleshooting page.

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Low insulation resistance The PV string is short circuited to the PE, or the PV string is installed in a chronically humid env 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Inverter over-temperature Too high ambient temperature, poor ventilation in the installation location Malfunction of the int Generally, the machine will be restarted after the internal temperature or module temperature returns to nor- mal, if the failure occurs repeatedly: 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Malfunction of the power module Internal circuit fault 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

System grounding fault PE cable not grounded 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

String 1 input overvoltage Too many strings in series

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

String 1 reversely connected Positive and negative terminals reversely con- nected 1

What you can do

• Do not touch the DC isolators, cables or connectors
• Call your installer - this points to a wiring problem that needs a licensed electrician

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

String 1 sinking current Inconsistent configuration of strings 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

AFCI fault of string 1 DC cable damaged Poor contact of string con- nector 1

What you can do

• Keep clear of the inverter, panels and DC cables, and do not touch any isolators
• Note the code, date and time, and check whether the alarm is still showing in the app
• If you smell burning or see smoke, get everyone out and call 000
• Call a licensed electrician or Total Solar - an arc fault means a DC wiring or connector problem that must be inspected

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid power outage Grid power outage or AC switch turned off Under normal circumstances, the inverter will be reconnected to the grid after the grid returns to normal

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid overvoltage Level I The grid voltage is greater than the overvoltage threshold Level I Under normal circumstances, the inverter will be reconnected to the grid after the grid returns to normal

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid undervoltage Level I The grid voltage is less than the undervoltage threshold I Under normal circumstances, the inverter will be reconnected to the grid after the grid returns to normal

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid overfrequency Level I The grid frequency is greater than the overfre- quency threshold Level I Under normal circumstances, the inverter will be reconnected to the grid after the grid returns to normal

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid underfrequency Level I The grid frequency is less than the underfrequen- cy threshold Level I Under normal circumstances, the inverter will be reconnected to the grid after the grid returns to normal

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid voltage imbalance Three-phase grid phase angle imbalance Three- phase grid amplitude imbalance Under normal circumstances, the inverter will be reconnected to the grid after the grid returns to normal

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

DC component of output current out of limit The DC component in the AC output current is greater than the set point 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Leak current out of limit The leak current exceeds the protection threshold This may be occasionally caused by transient environmental changes

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

4G communication fault Insufficient 4G traffic or SIM card not inserted Poor contact of internal communication Dongle Please check the 4G data, if the data is insufficient, please recharge

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

MPPT1 overcurrent protection MPPT overcurrent protection triggered This may be occasionally caused by transient environmental changes

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

AFCI self-checking circuit 1 fault DC arc detection circuit self-checking failed 1

What you can do

• Keep clear of the inverter, panels and DC cables, and do not touch any isolators
• Note the code, date and time, and check whether the alarm is still showing in the app
• If you smell burning or see smoke, get everyone out and call 000
• Call a licensed electrician or Total Solar - an arc fault means a DC wiring or connector problem that must be inspected

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

AC side overload protection AC side voltage below threshold 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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

EPO protection The customer presses the rapid shutdown button in emergency

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Neutral wire disconnected in the inverter The neutral line in the inverter is not connected or is loose 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Abnormal phase sequence of three-phase grid Abnormal phase sequence of three-phase grid Adjust the sequence of the three-phase wiring on the AC output side

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Three-phase grid is short circuited to the PE Three-phase grid is short circuited to the PE Check if there is a phase-to-ground short circuit on the grid side wiring

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Soft start failure Soft start failure If it occurs accidentally, it may be caused by a transient change in the environment

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid port relay open circuit fault Internal circuit failure in the equipment 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Abnormal grid connection phase sequence Abnormal grid connection 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Phase A load overvoltage Low phase A voltage of the load 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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Overcurrent at grid-side phase A port Excessive current flows through the A-phase port on the grid side 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Software version mismatch The equipment's internal software version does not match Please upgrade the system software again; If the fault still exists, please submit fault feedback on the APP-service-support-troubleshooting page.

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Energy storage module has low insulation impedance to ground The energy storage module is short circuited to the housing 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

High temperature of energy storage power module Too high ambient temperature, poor ventilation in the installation location Malfunction of the in- ternal power module results in abnormal internal heating

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Energy storage control circuit abnormal Internal circuit fault 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Low temperature of energy storage battery module Too low ambient temperature 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery module overvoltage Too high voltage of the battery module or cells therein

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery module undervoltage Too low voltage of the battery module or cells therein

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Overvoltage protection of the pow- er module Internal overvoltage protection triggered 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Software Version Mismatch The internal software version of the all-in-one machine does not match Please upgrade again

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Low Insulation Resistance To Ground Of Energy Storage Module Internal Short Circuit To The Enclosure Of The Energy Storage Module 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

High Temperature In Energy Stor- age Power Module The ambient temperature is too high, the equip- ment installation location is not ventilated; the power module inside the equipment is malfunc- tioning 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Energy Storage Battery Module Temperature High

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Energy Storage Control Circuit Abnormal Internal Circuit Malfunction 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Energy Storage Battery Module Temperature Low Ambient Temperature Is Too Low 1.Wait for the ambient temperature to rise to the operating temperature range of the equipment, and the fault can be automatically resolved

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery Module Overvoltage Battery module or cell voltage within the module is too high; battery module overcharged Please Submit Fault Feedback On The APP-support-troubleshooting Page

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery Module Undervoltage Battery module or cell voltage within the module is too low, long-term storage leads to power loss Please Submit Fault Feedback On The APP-support-troubleshooting Page

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Power module input overvoltage protection Trigger the internal overvoltage protection mech- anism of the device 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery cluster module overcurrent power limit The charge and discharge current of the battery module is relatively large 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Abnormal DC busbar wiring DC busbar positive and negative poles reversed 1

What you can do

• Do not touch the DC isolators, cables or connectors
• Call your installer - this points to a wiring problem that needs a licensed electrician

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Software version mismatch The internal software version of the all-in-one machine does not match Please upgrade again, if the fault still exists, please submit a fault report on the APP-support-troubleshoot- ing page

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

High temperature of energy storage battery module The ambient temperature is too high, and the installation location is not ventilated 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Auxiliary source anomaly Auxiliary module anomaly: balancing module abnormal; detection module anomaly: generally refers to overcurrent, voltage difference 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

The temperature of the energy storage battery module is low Ambient temperature too low 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery module overvoltage The battery module or the cell voltage within the module is too high Please submit fault feedback on the APP-support-troubleshooting page

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery module undervoltage The battery module or the cell voltage within the module is too low Please submit fault feedback on the APP-support-troubleshooting page

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Battery module voltage high limit power The voltage of the battery module or the cells within the module is relatively high 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Protocol version mismatch The internal software versions of the device do not match Version mismatch or upgrade unsuccessful, please upgrade again

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Junction box temperature is high The ambient temperature is too high, and the installation location of the equipment is not ven- tilated The internal power module of the equipment is malfunctioning, resulting in severe internal heating 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

AC soft start failure Internal circuit failure in the equipment 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Power line reverse connection The power cable or network cable is not properly connected 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Software and hardware version mismatch Mismatched versions of various subcomponents in the all-in-one system

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Temperature too high High ambient temperature, inadequate ventilation at the equipment installation location; abnormal operation of internal components in the device

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Auxiliary power source abnormal Internal circuit failure in the device

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Excessive off-grid output leakage current Off-grid scenario, high leakage current in the load

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Neutral point grounding fault Off-grid scenario: High voltage between N and PE; LN reversed (European gateway) Check if the functional ground is effectively connected to the external ground

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid wiring phase sequence abnor- mality Power Grid Connection Abnormality 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Inverter wiring phase sequence abnormality Load Side Wiring Abnormality 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid phase loss For three-phase equipment, if the three-phase grid voltage is not fully connected to the equip- ment, there is a lack of one phase or two phases in 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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid phase A overvoltaged Grid phase A voltage is too high 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Generator phase A overvoltaged Generator phase A voltage is too high 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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Overvoltage on Load Phase A High Voltage on Load Phase A 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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Abnormal phase sequence of en- gine connection Abnormal Wiring Of Oil Machine 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Bypass Switch Abnormal Bypass switch open, cannot close 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Bypass Switch On Bypass Switch On 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid contactor coil overvoltage Grid contactor coil overvoltage 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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

The cabinet door opens The cabinet door status feedback contact is high resistance 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Overcurrent protection for grid-side frame circuit breaker The feedback contact of the grid-side frame cir- cuit breaker fault is low resistance

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

The mechanical lifespan of the grid framework circuit breaker has been exceeded The mechanical lifespan of the grid framework circuit breaker has been exceeded 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Gateway communication anomaly Poor communication contact between the gate- way and the all-in-one machine 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Phase A CT reverse connection Phase A CT reverse connection Rewire according to the cause

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Engine start anomaly Engine start anomaly None

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

CLS malfunction CLS malfunction Clearing the fault on the App.

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Feed-in power limit protection When the grid feed-in power limit hard protection is enabled, exceeding the grid feed-in power limit will trigger hard protection

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

OVGR fault Ground fault overvoltage relay triggers protection Please check for any system grounding faults

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Grid input overvoltage Actual grid voltage exceeds rated voltage by 20%

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Leakage detection circuit abnormal Leakage detection circuit failure 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Internal temperature too high 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Charging cable specification ab- normal For a charger with a socket, the charging cable has abnormal current-carrying capacity

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Meter communication abnormal The meter loses communication with the charger for more than 1 minute

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Software version mismatch The equipment's internal software version does not match If the version does not match or the upgrade is unsuccessful, please upgrade again, if the upgrade is unsuc- cessful for multiple times, Please submit a fault report on the support-troubleshooting page of the mySigen app.

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Low insulation resistance The resistance of the positive and negative bus- bars to ground is too small 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Internal temperature too high The ambient temperature is too high, and the equipment is installed in a poorly ventilated loca- tion; The power module inside the equipment is malfunctioning, leading to severe internal heat- ing; The LLC power module is overheating, and the BUCK power module is also overheating

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

External fan malfunction External fan malfunction 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Control guidance malfunction CP pin disconnection, CP to ground short circuit 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code

Overvoltage protection LLC overvoltage, BUCK overvoltage 1

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

SigenStor / Sigen Hybrid / Gateway / battery · Guide only. All work must be done by a licensed electrician. Get help with this code