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Trouble Shooting Actions for Inverter Faults Messages
A) Consistent Fault
Conditions: The readings between two microprocessors of control board
are not consistent. It could be caused by the DSP and/or other circuits not
functioning properly.
Corrective Actions:
Restart the PV Inverter.
If fault remains, disconnect the PV Inverter and contact the inverter
installer.
B) FAN1 Lock (CPS SCE6KTL-O/US and CPS SCE7KTL-O/US)
Conditions: The external cooling fan of PV Inverter is not working
properly.
Corrective Actions
Visually check the front cooling fan and remove the obstacle if any.
If the top fan is not functioning, it may be replaced as per the
instructions described in section 9.1.
If fault remains, disconnect the PV Inverter and contact the inverter
installer.
C) Over Temperature:
Conditions: The internal temperature is higher than normal value
Corrective Actions:
Disconnect PV Inverter for a period of time (>30 minutes) and then
restart the PV Inverter.
If fault remains, disconnect the PV Inverter and contact the inverter
installer. Select a new location for the installation if it is necessary.
D) Relay Fault:
Fault Conditions: The relay between inverter and grid is not functioning.
Corrective Actions:
Restart the PV Inverter.
If fault remains, disconnect the PV Inverter and contact the inverter
installer.