Fault

LED1=ON, LED2=OFF, LED3=OFF, LED4=OFF

Battery Voltage High.

2 Devices that report this code
FLB48314TG1Battery↗ view on device
LED1=ON, LED2=OFF, LED3=OFF, LED4=OFFBattery Voltage High.Fault
Description

Total battery pack voltage exceeded the rated/protection value. Indicated by red Power/Running Status LED with LED1 ON only.

Source:Felicity-FLB48314TG1-Manual.pdf
LPBF24200-MBattery↗ view on device
LED1=ON, LED2=OFF, LED3=OFF, LED4=OFFBattery Voltage High.Warning
Description

Pack-level battery voltage is above the upper threshold (over-voltage warning at the pack level).

Cause

Charger output voltage above the pack maximum charging voltage (e.g. >28.8 V on the 24 V model, >57.6 V on 48 V models).

Recommended fix

Stop charging and check the charger / inverter charge-voltage settings against the recommended values in section 2.4. Resume only after the pack voltage falls back into the operating range.

Source:Felicitysolar LPBF24200-M LiFePO4 Battery System for Households User Guide.pdf · page 9

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