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7. Maintenance
This section contains information and procedures for solving possible problems with the inverters and provides
you with troubleshooting tips to identify and solve most problems that can occur.
7.1 Alarm List
Fault Code
Solution
SPS Fault
- Turn off the PV and grid, reconnect them.
- Please seek help from us if it does not go back to normal state.
Bus OVP
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek help from us if it does not go back to normal state.
DCI Fault
- Wait for one minute after the inverter reconnects to grid.
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek help from us if it does not go back to normal state.
EEPROM Fault
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek help from us if it does not go back to normal state.
GFC Fault
- Disconnect DC and AC connector, check the surrounding equipment on
the AC side.
- Reconnect the input connector and check the state of inverter after
troubleshooting.
- Please seek help from us if it does not go back to normal state.
GFCD Fault
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek help from us if it does not go back to normal state.
Grid 10Min OVP
- System will reconnect if the grid is back to normal.
- Or seek help from us if it does not go back to normal state.
Grid Freq Fault
- Wait for one minute, grid may go back to normal working state.
- Make sure that grid voltage and frequency complies with standards.
- Or please seek help from us.
Grid Lost Fault
- Please check grid-connection, e.g., wires, interface etc.
- Checking grid usability.
- Or seek help from us.
VGridTransient Fault
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek help from us if it does not go back to normal state.
Summary of Contents for Force 10.5S
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