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 Sen sor
Fault of Fan Drive
The fan drive boa rd is
abnormal
Yes
Replace th e fan drive board
No
If the p roblem resolved after
the unit is powered off and then powered
on for more than three time s?
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