Critical

0x20C3

Battery cluster SBCU external bus voltage sampling fault.

1 Devices that report this code
FLS-ES232LC-SEnergy storage system↗ view on device
0x20C3Battery cluster SBCU external bus voltage sampling fault.Critical— level 3
Cause

Invalid external bus voltage sampling.

Recommended fix

Send faults externally, limit power and request to lower high voltage; if command not received within 5s, cut off the main circuit relay.

Source:FLS-ES232LC-S.pdf

Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.