Gree GMV-VQ680WM/C-X Service Manual page 127

Gree
terminal between the main boa rd and outlet
pipe temperature sensor gets loose or
the outlet pipe temperature sensor
2.56 "d7" Humidity 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 humidity sensor and the main board interface;
■ Abnormal humidity sensor;
■ Abnormal detection circuit.
Troubleshooting:
"d6" Outlet P ipe
Temperature Sen sor Fault
Whether th e i nter face
contains forei gn matters?
No
Is th e p roblem so lve d after
is re placed?
No
The detection circuit may
ope rate impro perly
GMV6 HR DC Inverter VRF Units Service Manual
Yes
matters and plug it tightly
Yes
Replace th e main control
boa rd
125
Remove the foreign