Daewoo FRU-541 Series Service Manual page 46

7. Cold of Vegetable Case
Temperature setting
8. Operation Noise of Refrigerator
8-1. Compressor operation noise
Rubber absorber to
hold compressor is
distorted or aged?
compressor itself or
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.
Start
is 'MAX'?
No
Check Valve
operation is ok?
Yes
Any Refrigerator
sensor Error?
Yes
Start
Refrigerator Foot
level is ok?
Yes
No
Sound from
vibration?
Yes
Yes
No
No
Sensor is ok?
Yes
No
Yes
No
45
TROUBLE SHOOTING
Change to 'MIDDLE' mdoe
Repair or change the new
No
Repair or change the new
Check sensor connection
(Check the connector to Main PCB)
Adjust foot leveling
(Refer to User Manual)
Change the Rubber
absorber
Attach a restrainer on the
compressor head to reduce
vibration and high frequency noise