Troubleshooting - Huawei HW-Li2Ah User Manual

5

Troubleshooting

Fault
The CHG LED is off when the
charger charges the battery.
The backup battery unit fails to
work and the DIS LED is off after
the mains supply is cut.
The battery buzzer generates
beeps.
The OLT fails to monitor the
status of the backup battery unit.
Troubleshooting Method
Check whether the charger matches the batter
Check whether the mains supply is normal.
Check whether the battery is fully charged.
Check whether the battery is exhausted.
Check whether the cables are properly connected.
Check whether the ba
battery immediately.
Check whet her the battery monitoring cable is properly
connected.
Check whether the ONT works normally.
8
ttery expires. If yes, replace the
y.