Fault
4 Devices that report this code21
OP current sensor failed.
21OP current sensor failed.Fault
Description
OP (output) current sensor failed.
Recommended fix
Restart the unit, if the error persists, contact the repair center.
Source:
ICM.pdf · page 1321BMS communication Alarm.Fault
Description
Abnormal communication between battery and inverter in non-SOC mode, check battery and inverter wiring.
Recommended fix
Check battery and inverter wiring.
Source:
Felicitysolar IVGM Series Hybrid inverter Instruction Manual.pdf · page 5121PV Mos Short.Fault
Description
Fault event: PV input MOSFET short-circuit fault detected.
Recommended fix
Restart the unit. if the error persists, contact the repair center.
Source:
LUX-S-1600LG01.pdf · page 2221OP current sensor failed.Fault
Description
Output current sensor failed.
Recommended fix
Output current sensor failed.
Source:
T-REX-3_3.6_4_4.6_5_6KLP1G01-hybrid-inverter-user-guide-English.pdf · page 38Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.