FAULT: LED1=ON, LED2=ON, LED3=OFF, LED4=ON (Green OFF, Red ON)
Current Sensor Abnormal.
FAULT: LED1=ON, LED2=ON, LED3=OFF, LED4=ON (Green OFF, Red ON)Current Sensor Abnormal.Critical
BMS current-sensor diagnostic failure; the pack cannot reliably measure charge/discharge current.
Internal current sensor fault or wiring problem on the BMS board (text in manual: 'CURRENT SENSOR ABNOMAL' [sic]).
Power-cycle the pack. if the fault persists do not continue to use the unit; contact a qualified service technician — section 1.3 warns that only qualified service persons may service the device.
Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9FAULT: LED1=ON, LED2=ON, LED3=OFF, LED4=ON (Green OFF, Red ON)Current Sensor Abnormal.Critical
BMS current-sensor diagnostic failure; the pack cannot reliably measure charge / discharge current. Listed in the FAULT row of the LED table on page 7 as 'CURRENT SENSOR ABNOMAL' (sic in source).
Internal current-sensor fault or wiring problem on the BMS board.
Power-cycle the pack (press and hold On/Off for 3 s to shut down per section 4.1, then re-enable). if the fault persists, do not continue to use the unit — section 1.3 items 3 and 12 require that only qualified service persons service the device. Contact your supplier per the warranty / damaged-battery guidance in section 5.
Battery Manual LPBF48250 (EN).pdf · page 7Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.