Gree GMV6 DC Inverter VRF Units Service Manual
100
Yes
"d3" Ambient Temperature
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 ambient temperature sensor
is replaced?
Whether the interface
terminal between the main board
and ambient temperature sensor gets loose
or contains foreign matters?
No
2.45 "d4" Inlet 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 inlet pipe temperature sensor and the main board interface;
■ Abnormal inlet pipe temperature sensor;
■ Abnormal detection circuit.
Troubleshooting:
Summary of Contents for GMV6 Series
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