Inverter Fan Overcurrent Protection; Ipm Module Protection Fault - Gree GMV-S120WL/A-S Service Manual

5) Inverter fan overcurrent protection (ODU fault code H5), and IPM module protection
fault (ODU fault code H6)
Check if the IPM module is damaged according to
the methods stipulated in Attachment 4.3
Check if the fans UVW cables are
Replace the fan's drive
board to see if the fault is solved
The fan is faulty and needs
GMV5 Home DC Inverter Multi VRF Units
H5 or H6
NO
well connected
YES
NO
to be replaced
Complete
305
YES
Replace the fans drive board
NO
Connect the fan's UVW cables well