LG RESU10H Installation Manual page 31

If the battery LED is ON, but the battery is not charging or discharging
1. Update both the inverter and battery firmware version. Refer to the inverter's
troubleshooting guide for instruction.
2. Check the inverter's setting for battery.
Refer to the inverter's troubleshooting guide for the battery set-up instruction.
3. If the battery is recognized, inverter set up is correct.
4. If the issue persists,
4-1. Turn off the Circuit Breaker first, then turn off the Aux Power Switch.
4-2. Turn off the inverter. Verify there is no power at the battery connection.
4-3. Unplug all the wires and reconnect. Re-check the wiring on the battery is
done correctly. Refer to the installation manual (3.2 Cable connection).
4-4. Turn on the Aux Power Switch first. Then, turn on the Circuit Breaker.
4-5. Turn on the inverter.
5. If the battery set up is correctly done, but the battery still does not operate,
turn off the Circuit Breaker first, then turn off the Aux Power Switch.
6. Contact LGC regional contact point.
LED Status
If the battery FAULT LED is ON
1. Check if the inverter recognizes the battery. Refer to the inverter's troubleshooting
guide on the battery set-up instruction.
2. If the inverter is connected to the internet, collect the log file from the inverter
company.
2-1. Send the log file to LGC regional contact point.
2-2. Turn off the Circuit Breaker first, then turn off the Aux Power Switch.
2-3. Wait further instruction from LGC
3. If the inverter is not connected to the internet, check the inverter LCD to read
battery's fault ID. Refer to the inverter's troubleshooting guide for instruction.
3-1. Send the fault ID to LGC regional contact point.
3-2. Turn off the Circuit Breaker first, then turn off the Aux Power Switch.
3-3. Wait further instruction from LGC
LED Status
Troubleshooting
Action
Power on, Idle
Charging
Discharging
Action
Fault
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