Gree GMV6 DC Inverter VRF Units Service Manual
"P3" Reset Protection for
the Compr essor Drive
Module
Is th e p roblem solve d after
the unit is powered off and powered on
for mor e than three times?
The compr essor drive boar d
operate s improperly
No
Replace th e compressor drive
board
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 compressor is damaged;
■ The system is blocked;
■ IPM module of the compressor drive board is damaged.
Troubleshooting:
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