7. Cold of Vegetable Case
TROUBLE SHOOTING
Temperature setting
Start
Check Valve
Any Refrigerator
sensor Error?
Change to 'MIDDLE' mdoe
No
Yes
Yes
Repair or change the new
No
Repair or change the new
Sensor is ok?
Check sensor connection
(Check the connector to Main PCB)
No
No
Yes
Yes
8. Operation Noise of Refrigerator
8-1. Compressor operation noise
Remark
Refrigerator Foot
level is ok?
Start
Rubber absorber to
hold compressor is
distorted or aged?
Sound from
compressor itself or
vibration?
Adjust foot leveling
(Refer to User Manual)
Yes
No
No
Change the Rubber
absorber
Yes
Yes
Attach a restrainer on the
compressor head to reduce
vibration and high frequency noise
No
Change the compressor
- 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.
42
Summary of Contents for FRN-U20BV
Page 3: ...2 External Size SPECIFICATIONS 2...
Page 29: ...1 Inner Basic Model 2 Basic Model WIRING DIAGRAM Refrigerant R 134a Type 3 Dispenser Model 28...
Page 30: ...1 Inner Basic Model 2 Basic Model WIRING DIAGRAM Refrigerant R 600a Type 3 Dispenser Model 29...
Page 52: ...COOLING CYCLE HEAVY REPAIR Brzing Reference Drawings 51...
Page 54: ...How to install water line Dispenser models only 53...
Page 55: ...How to install water line Dispenser models only 54...
