Gree GMV-VQ680WM/C-X Service Manual page 155

Gree
2.88 "FE" Abnormal Current Sensor of Compressor 4
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:
Sen sor of Compr essor 4
terminal between the main boa rd
and the te mpe rature se nso r ge ts l oose o r
contains forei gn matters?
Is th e p roblem so lve d after the small
boa rd o f circu it se nsor is replaced?
The detection circuit may
"FE" Abn ormal Cur rent
Whether th e i nter face
No
No
ope rate impro perly
GMV6 HR DC Inverter VRF Units Service Manual
Yes
Remove the foreign
matters and plug it tightly
Yes
Replace th e main control
boa rd
153