Gree GMV6 DC Inverter VRF Units Service Manual
2.70 "FH" Abnormal Current Sensor of Compressor 1
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
"FH" Abnormal Cur rent
Sensor of Compressor 1
Remove the foreign
matters and plug it tightly
The detection circuit may
operate impro perly
Yes
Replace the main control
board
No
Whether th e interface
terminal between the main board
and the temperature sensor gets loose or
contains forei gn matters?
No
Is th e p roblem solve d after the small
board o f circu it se nsor is replaced?
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