GE FRU-57QL Series Service Manual page 42

7. Cold of Vegetable Case
Temperature setting
is 'MAX'?
Check Valve
operation is ok?
Any Refrigerator
sensor Error?
8. Operation Noise of Refrigerator
8-1. Compressor operation noise
Refrigerator Foot
level is ok?
Rubber absorber to
hold compressor is
distorted or aged?
Sound from
compressor itself or
vibration?
Change the compressor
Remark
- Compressor sound is somewhat normal because it works like a heart to circulate the refrigerant in the pipes.
- Rattling or metalic touch sound of motor, piston of compressor can be heard when it starts or stops.
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Start
No
Yes
No
Yes
Start
Yes
No
Yes
Yes
Change to 'MIDDLE' mdoe
No
Repair or change the new
No
Sensor is ok?
Yes
Check sensor connection
(Check the connector to Main PCB)
No
Adjust foot leveling
(Refer to User Manual)
Yes
Change the Rubber
Attach a restrainer on the
No
compressor head to reduce
vibration and high frequency noise
41
TROUBLE SHOOTING
Repair or change the new
absorber