Gree GMV6 DC Inverter VRF Units Service Manual
Yes
"d4" Inlet Pi pe Tempe rature
Sensor Fault
Remove the foreign
matters and plug it tightly
The detection circuit may
operate impro perly
Yes
Replace the main control
board
No
Is the p roblem solved after
the inlet pipe temper ature sensor
is re placed?
Whether the i nterface
terminal between the main board
and inlet pipe temperature sensor gets loose
or contains foreig n matters?
No
2.46 "d5" Middle Part Temperature Sensor Fault (Reserved)
2.47 "d6" Outlet Pipe Temperature Sensor Fault
Fault display: wired controller of indoor unit and receiver of indoor unit display
Fault diagnosis:
The temperature sensor detection circuit samples the AD value of temperature sensor and
determines the range of AD value. When the sampled AD value exceeds the limits for 5 consecutive
seconds, the fault is generated.
Possible causes:
■ Poor contact between the outlet pipe temperature sensor and the main board interface;
■ Abnormal outlet pipe temperature sensor;
■ Abnormal detection circuit.
Troubleshooting:
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