Fault
1 Devices that report this codeFAULT (RED ON, LED1=OFF, LED2=ON, LED3=OFF, LED4=ON)
CELL TEMPERATURE LOW.
FAULT (RED ON, LED1=OFF, LED2=ON, LED3=OFF, LED4=ON)CELL TEMPERATURE LOW.Fault
Cause
An individual cell temperature fell below the lower protection threshold (charge: below 0°C; discharge: below -20°C).
Recommended fix
Warm the environment until cells are within the operating range (Charge: 0°C–55°C, Discharge: -20°C–55°C). 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 12Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.