Sigenergy SigenStor / Sigen Hybrid / Gateway / battery error codes explained

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