Troubleshooting - LG RESU10H Installation Manual

5 Troubleshooting

5.1 Troubleshooting
Check the indicators on the front to determine the state of the battery pack. A
warning state is triggered when a condition, such as with voltage or temperature, is
beyond design limitations. The battery pack's BMS periodically reports its operating
state to the inverter.
When the battery pack falls outside prescribed limits, it enters a warning state.
When a warning is reported, the inverter immediately stops operation.
Use the monitoring software on the inverter to identify what caused the warning.
The possible warning messages are as follows:
Battery Over Voltage
Battery Under Voltage
Battery Over Temperature
Battery Under Temperature
Battery Discharge Over Current
Battery Charge Over Current
BMS Internal Communication
Battery Cell Voltage Imbalance
The abnormal state is cleared when the battery pack recovers normal operation.
If battery pack is not working correctly and the issue persists, contact a Qualified
personnel, Installer or LGC regional contact point.
NOTE
For a serious warning, if no proper corrective actions are taken by the inverter,
the battery pack's circuit breaker automatically trips to protect itself.
CAUTION
If the battery pack or the inverter indicates FAULT or fails to operate, contact
LGC regional contact point (page 34) or your distributor immediately.
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