Gree GMV6 DC Inverter VRF Units Service Manual
161
"P3" Reset Protection for
the Compr essor Drive
Module
Is th e p roblem so lve d after
the unit is powered off and powere d o n
for mor e than three time s?
The co mpr essor drive boar d
ope rate s imprope rly
No
Replace th e compre ssor drive
boa rd
Yes
2.129 "P5" Inverter Compressor Over-current Protection
Fault display:
main board of outdoor unit displays
Fault diagnosis:
If the fault code displayed on the 2-digit digital LED of the outdoor unit's main control board is P5, it
indicates the over-current protection for the inverter compressor.
Possible causes:
■ Poor contact of compressor's UVW cables;
■ The compressor's UVW cables are wrongly connected;
■ The compre
ssor is damaged;
■ The system is blocked;
■ IPM module of the compressor drive board is damaged.
Troubleshooting: