Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
304
4) Faults in the IPM temperature sensor of fans drive board (ODU fault code H7), current
detection circuit (ODU fault code HC), and out-of-step protection (ODU fault H9).
H7, H9 or HC
Check if the fault is solved
after turning on the system for
three times
The fans drive board is faulty
and needs to be replaced
Complete
No