Fault

FAULT (RED ON, LED1=ON, LED2=OFF, LED3=OFF, LED4=ON)

CELL TEMPERATURE HIGH.

1 Devices that report this code
FAULT (RED ON, LED1=ON, LED2=OFF, LED3=OFF, LED4=ON)CELL TEMPERATURE HIGH.Fault
Cause

An individual cell temperature exceeded the upper protection threshold.

Recommended fix

Stop charging/discharging and allow the cell to cool; check ambient temperature is within the operating range. The fault will self-clear once temperature normalises. if the fault persists, contact the local distributor.

Source:LUX-E-48100LG04-Lithium-Battery-User-Guide.pdf · page 12

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