Growatt Inverter Error Codes
Growatt Inverter Error Codes
Growatt Inverter Error Codes
Experiencing issues with your Growatt inverter can be challenging. Understanding the specific error codes can help in diagnosing and resolving problems efficiently. Below is a comprehensive guide to common Growatt inverter error codes and their corresponding solutions.
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Growatt Inverter Error Code: No AC Connection
Description: No utility grid detected or utility grid power failure.
Solution: This error typically occurs during a grid failure. If your property still has power, check your AC isolator or circuit breaker. If both are 'on' and the problem persists, submit a maintenance service request.
Growatt Inverter Error Code: AC V Outrange
Description: Utility grid voltage is out of permissible range.
Solution: This could happen, particularly in the summer months if there is a lot of solar in your area. If the problem persists, please submit a maintenance service request.
Growatt Inverter Error Code: AC F Outrange
Description: Utility grid frequency is out of range.
Solution: Similar to the AC voltage issue, this can occur during periods of high solar activity. If the problem persists, please submit a maintenance service request.
Growatt Inverter Error Code: Over Temperature
Description: Temperature out of range.
Solution: Restart the inverter. If the error persists, contact Growatt. Ensure the inverter is not covered or placed in direct sunlight, causing it to overheat.
Growatt Inverter Error Code: PV Isolation Low
Description: Insulation problem detected.
Solution: Submit a maintenance service request to have the insulation inspected and repaired as necessary.
Growatt Inverter Error Code: Output High DCI
Description: Output current DC offset too high.
Solution: Restart the inverter. If the problem persists, submit a maintenance service request.
Growatt Inverter Error Code: Residual 1 High
Description: Leakage current too high.
Solution: Restart the inverter. If the problem persists, submit a maintenance service request.
Growatt Inverter Error Code: PV Voltage High
Description: DC input voltage is exceeding the maximum tolerable value.
Solution: Disconnect the DC switch immediately and switch off the system. Submit a maintenance service request.
Growatt Inverter Error Code: Auto Test Failed
Description: Automatic test sequence has failed.
Solution: Restart the inverter; the fault should clear. If it persists, contact Growatt support.
Growatt Inverter Error Code: 100
Description: Voltage fault detected.
Solution: Submit a maintenance service request to diagnose and resolve the voltage issue.
Growatt Inverter Error Code: 101
Description: Communication fault.
Solution: Turn off the DC switch and allow the inverter to shut down completely. Turn on the DC switch to see if the error still exists. If the error persists, submit a maintenance service request.
Growatt Inverter Error Code: 102
Description: Consistent fault; data received by master and slave processors are different.
Solution: Follow the same steps as for Error 101. If unresolved, submit a maintenance request.
Growatt Inverter Error Code: 116
Description: EEPROM fault; failure in reading or writing EEPROM.
Solution: If the error appears only in the morning, contact Growatt support. If it occurs all day, restart the inverter. If the fault remains, the control board may need replacement. Submit a maintenance request.
Growatt Inverter Error Code: 117
Description: Relay circuit malfunction.
Solution: Restart the inverter. If the problem persists, request maintenance.
Growatt Inverter Error Code: 118
Description: Initialization mode fault.
Solution: Submit a maintenance service request for further diagnosis and repair.
Growatt Inverter Error Code: 119
Description: GCFI device damage; potential issue with the Ground Fault Circuit Interrupter.
Solution: Restart the inverter 2-3 times. If the error persists, submit a maintenance request.
Growatt Inverter Error Code: 120
Description: HCT fault; issue with the current sensor.
Solution: Restart the inverter. If the issue continues, request maintenance.
Growatt Inverter Error Code: 121
Description: Communication failure; master processor not receiving data from the slave processor.
Solution: See troubleshooting steps for Errors 101 and 102. If unresolved, submit a maintenance request.