Fault

FAULT: LED1=OFF, LED2=ON, LED3=OFF, LED4=ON (Green OFF, Red ON)

Cell Temperature Low.

2 Devices that report this code
LPBF24200-MBattery↗ view on device
FAULT: LED1=OFF, LED2=ON, LED3=OFF, LED4=ON (Green OFF, Red ON)Cell Temperature Low.Fault
Description

Cell pack under-temperature protection has tripped.

Cause

Cell temperature below the allowed charging range (0 degC) or discharging range (-20 degC).

Recommended fix

Warm the battery to within the operating range before resuming use. Do not install in environments below 0 degC.

Source:Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9
LPBF48250Battery↗ view on device
FAULT: LED1=OFF, LED2=ON, LED3=OFF, LED4=ON (Green OFF, Red ON)Cell Temperature Low.Fault
Description

Cell-pack under-temperature protection has tripped. Listed in the FAULT row of the LED table on page 7 as 'CELL TEMPERATURE LOW'.

Cause

Cell temperature below the allowed range — charging is permitted only between 0 and +55 degC, discharging between -20 and +65 degC (section 2.3 spec).

Recommended fix

Warm the battery to within the operating range before resuming use. Do not install or operate in an environment below 0 degC (section 1.3 item 14).

Source:Battery Manual LPBF48250 (EN).pdf · page 7

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