SolarKing Solar Inverter Fault & Error Messages
Display
Possible Actions
System Fault
Isolation Fault
View Possible Actions
- Check the impedance between PV (+) & PV (-) and earth ground. The impedance must be larger than 8M .
- If above action is useless, the isolation detection circuit fails, replace one unit.
Ground I Fault
View Possible Actions
- This is caused by too high ground current.
- Unplug PV generator from the input, check AC peripheral system.
- After the cause is cleared, plug PV input again. Check the status of the inverter.
- If above actions are useless, the GFCI circuit fails, replace one unit.
Grid Fault
View Possible Actions
- Wait for 30 seconds, if the grid come back to normal, inverter will start again automatically.
- Make sure grid voltage and frequency meet the specifications.
- Use PCM solar control to adjust operation range.
- If above actions are useless, replace one unit.
Impedance Fault
View Possible Actions
- Grid impedance higher than the permissible value.
- Wait for 30 seconds, see if it works again.
- Check the wires between inverter and grid. Change larger wires if necessary.
- Adjust impedance parameter by PCM solar control program.
- If useless, the impedance circuit inside failure, please replace another one.
No Utility
View Possible Actions
- Grid is not connected; check the AC connection by multi-meter.
- Check grid connection, such as wire and connector to the inverter.
- Check breaker between inverter and grid; if it is tripped, DO NOT CLOSE again, replace another unit.
Inverter Failure
PV Over Voltage
View Possible Actions
- Check the PV open voltage, see if it is more than or too close to 500VDC.
- If PV voltage is much less than 500VDC (e.g. < 430V), measure the DCV by multi-meter, compare the readings on meter and LCD, if >5%, replace another unit.
Consistent Fault
View Possible Actions
- It is caused by the reading between main and redundant controllers are different.
- Disconnect PV (+) or PV (-) from the input, start the unit again.
- If this does not work, replace another one.
Device Fault
View Possible Actions
- Caused by improper operation of the circuit.
- Disconnect PV (+) or PV (-) from the input, start the unit again.
- If it does not work, replace another one.
Over Temperature
View Possible Actions
- The internal temperature is higher than specified normal value.
- Reduce the ambient temperature by some other ways or move inverter to cooler place.
- If it is not effective, the temperature sensors fails, replace another one.
Here are some error codes that you may see on the SolarKing Solar Inverter and its
descriptions.
Error Message
Description
No Utility
View Description
No AC Line
PV Over Voltage
View Description
PV Voltage is too high
DC Bus High
View Description
Dc bus voltage is too high
DC Bus Low
View Description
Dc bus voltage is too low
Over Temperature
View Description
Temperature is too high
Grid Fault
View Description
Grid Voltage or Grid Frequency is wrong
Device Fault
View Description
Hole sensor, GCFI Device
or AD Reference Voltage Fault
Isolation Fault
View Description
PV Panel isolation problem
Impedance Fault
View Description
Grid Impedance Fault
Ground I Fault
View Description
Output ground leakage current too high
Relay Failure
View Description
OutputRelay Fail
DC INJ High
View Description
Output DC injection too high
Ref 2.5V Fault
View Description
2.5V reference voltage inside problem
DC Sensor Fault
View Description
Output DC sensor abnormal
GFCI Fault
View Description
GFCI detection problem
Sci Fault
View Description
Communication between Master and Slave problem
Consistent Fault
View Description
The value of Master and Slave are not the same
EEPROM Fault
View Description
Eeprom problem
Grid V Mismatch
View Description
The Grid V of Master and Slave are mismatch
Grid F Mismatch
View Description
The Grid F of Master and Slave are mismatch
Grid Z Mismatch
View Description
The Grid Impedance of Master and Slave are mismatch
GCFI Mismatch
View Description
The GCFI value of Master and Slave are mismatch
DC Curr Mismatch
View Description
The Output DC current of Master and Slave are mismatch