Gree GMV6 DC Inverter VRF Units Service Manual
Yes
"d7" Humidity Sensor Fault
Remove the foreign
matters and plug it tightly
The detection circuit may
operate improperly
Yes
Replace the main control
board
No
Is the problem solved after the
humidity sensor is replaced?
Whether the interface
terminal between the main board
and humidity sensor gets loose or
contains foreign matters?
No
2.49 "d8" Water Temperature Sensor Fault (Reserved)
2.50 "d9" Jumper Cap Fault
Fault display: wired controller of indoor unit and receiver of indoor unit display
Fault diagnosis:
A fault is reported if the jumper cap does not match the main board.
Possible causes:
■ The jumper cap is not installed;
■ The jumper cap is numbered incorrectly;
■ Abnormal detection circuit.
Troubleshooting:
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