4-2-9) When Compressor Does Not Operate (Ac Comp) - Samsung RL60GG Series Service Manual

4. TROUBLESHOOTING

4-2-9) When Compressor does not Operate (AC Comp)

Refer to Test Function
Forced Operation occurred?
(Make sure to check after
performing Forced Operation)
1) Replace MICOM
2) Replace PCB
1) Replace IC71 Driver IC(ULN2803)
2) Replace PCB
Refer to Circuit Diagram
Start
7 minutes passed
since Comp Off?
Yes
Compressor runs
upon Forced Defrost
Yes
No
No
IC10 MICOM #29 is
High?(5V)
Yes
No
IC71 #13 is about 0.8V?
Yes
CN70 & CN71 are
normal?
Yes
COMP ASS'Y is
normal?
Yes
Normal (Check again)
No
Check after 7 minutes
Yes
Freezer Sensor is
normal?
The Temp Sensing
Circuitry at MAIN PCB is
normal?
Check its connections
No
Check the connector contact
No
Replace COMP ASS'Y
62
No
Replace the Sensor
Yes
No
Replace MAIN PCB
Yes