Fault
1 Devices that report this codeFAULT (RED ON, LED1=OFF, LED2=OFF, LED3=OFF, LED4=ON)
BMS TEMPERATURE LOW.
FAULT (RED ON, LED1=OFF, LED2=OFF, LED3=OFF, LED4=ON)BMS TEMPERATURE LOW.Fault
Cause
BMS internal temperature fell below the lower protection threshold.
Recommended fix
Warm the installation environment (operating range Charge: 0°C–55°C, Discharge: -20°C–55°C). The fault will self-clear once temperature returns to range. 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.