Gree GMV6 DC Inverter VRF Units Service Manual
2.84 "H7" Temperature Sensor Fault of Fan 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 H7, it
indicates the temperature sensor fault for the fan drive.
Possible causes:
■ The fan drive board operates improperly.
Troubleshooting:
"H7" Temperature Sensor
Fault of Fan Drive
The fan drive board is
abnormal
Yes
Replace the fan drive board
No
If the problem resolved after
the unit is powered off and then powered
on for more than three times?
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