Gree GMV-1015WM/G-U, Service Manual

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Gree GMV6 DC Inverter VRF Units Service Manual
110
Yes
"dC" Abnormal Settings of
DIP Switch for Capacity
Redial the DIP switch
The detection circuit is
abnormal
Yes
Replace the main control
board
Whether the DIP switch for
capacity on the main board is dialed
to an incorrect position?
No
2.62 "dL" Air Outlet 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 air outlet temperature sensor and the main board interface;
■ Abnormal air outlet temperature sensor;
■ Abnormal detection circuit.
Troubleshooting:
Yes
"dL" Air Outlet Temperature
Sensor Fault
Remove the foreign
matters and plug it tightly
The detection circuit is
abnormal
Yes
Replace the main control
board
Whether the interface
terminal between the main board
and air outlet temperature sensor gets loose
or contains foreign matters?
No
Is the problem
solved after the air outlet temperature
sensor is replaced?
No