Gree GMV6 HR DC Inverter VRF Units Service Manual
207
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" Curren t De tection
Circuit Fault o f Co mp ressor
Driver
Is th e p roblem
resolved after the unit is powered off
and then powere d o n for more tha n
three ti mes?
The co mpr essor drive boar d
ope rate s imprope rly
No
Replace th e compre ssor
drive boar d
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:
■ The unit's input power cable has a voltage exceeding 460 V;
■ The compressor drive board operates improperly.
Troubleshooting:
Summary of Contents for GMVVQ1015WM/C-X
Page 418: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 416 GMV VQ400WM C X GMV VQ450WM C X...
Page 420: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 418 NCHS1D...
Page 421: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 419 NCHS2D...
Page 422: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 420 NCHS4D...
Page 423: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 421 NCHS8D...
Page 426: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 424 6 1 2 Heating Operation...
Page 427: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 425 6 1 3 Main body Cooling...
Page 428: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 426 6 1 4 Main body Heating...
Page 430: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 428 6 2 2 Heating Operation...
Page 431: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 429 6 2 3 Main body Cooling...
Page 432: ...Gree GMV6 HR DC Inverter VRF Units Service Manual 430 6 2 4 Main body Heating...
Page 433: ...JF00304244...