Gree GMV6 DC Inverter VRF Units Service Manual
189
2.159 "PC" Current Detection Circuit Fault of Compressor Drive
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 PC, it
indicates the current detection circuit fault of compressor drive.
Possible causes:
■ The compressor drive board operates improperly.
Troubleshooting:
"PC" Current Detection
Circuit Fault of Compressor
Driver
Is the problem
resolved after the unit is powered off
and then powered on for more than
three times?
The compressor drive board
operates improperly
No
Replace the compressor
drive board
Yes
2.160 "PH" Over Voltage Protection for DC Bus of Compressor
Drive
Fault display:
main board of outdoor unit displays
Fault diagnosis:
When the input power cable of the main board has a voltage over 460 V, the unit triggers protection
against faults.
Possible causes:
■
Power voltage is higher than 430V or 780V(for 460V-voltage);;
■
Compressor drive board is abnormal.
Troubleshooting:
Summary of Contents for GMV-1015WM/G-U
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