Gree GMV6 DC Inverter VRF Units Service Manual
2.71 "FC" Abnormal Current Sensor of Compressor 2
Fault display: main board of outdoor unit, wired controller of indoor unit and receiver of indoor unit
display
Fault diagnosis:
The circuit detection circuit samples the AD value and determines the range of AD value. When the
sampled AD value exceeds the limits for 3 consecutive seconds, the fault is generated.
Possible causes:
■ Poor contact between the circuit sensor and the main board interface;
■ Abnormal small board of circuit sensor;
■ Abnormal detection circuit.
Troubleshooting:
Yes
"FC" Abnormal Cur rent
Sensor of Compressor 2
Remove the foreign
matters and plug it tightly
The detection circuit may
operate improperly
Yes
Replace the main control
board
No
Whether th e i nter face
terminal between the main boa rd
and the te mpe rature sensor gets loose or
contains forei gn matters?
No
Is th e p roblem so lved after the small
board o f circu it se nsor is replaced?
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