Fault

21

OP current sensor failed.

4 Devices that report this code
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 13
21BMS 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 51
21PV 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 22
21OP 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 38

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