Gree GMV-1015WM/G-U, Руководство по обслуживанию

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Gree GMV6 DC Inverter VRF Units Service Manual
135
2.89 "FF" Abnormal Current Sensor of Compressor 5
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
"FF" Abnormal Current
Sensor of Compressor 5
Remove the foreign
matters and plug it tightly
The detection circuit may
operate improperly
Yes
Replace the main control
board
No
Whether the interface
terminal between the main board
and the temperature sensor gets loose or
contains foreign matters?
No
Is the problem solved after the small
board of circuit sensor is replaced?