4-2-8) When Compressor Does Not Operate (Inverter Comp) - Samsung RL60GG Series Service Manual

4. TROUBLESHOOTING

4-2-8) When Compressor does not Operate (Inverter Comp)

Refer to Test Function in this
manual
Forced Operation occurred?
(Make sure to check after performing
Forced Operation)
0~800Hz 50% Duty
Signal Output
Replace PCB
Check the Wire connection
Refer to the IPM DIODE Voltage
5-5) IPM Diode Voltage
Start
7 minutes passed
since Comp Off?
Yes
Compressor runs
upon Forced Operation
Yes
No
No
IC103 MICOM #4 is
High?(2.5V)
Yes
No
Wire between Main
and Sub is normal?
Yes
Connector
between Main and Sub is
normal?
Yes
Connector (CN301)
contact at the COMP
is normal?
Yes
DIODE Voltage
at SPM is normal?
Yes
COMP ASS'Y is normal?
Yes
Normal
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
Check the connector contact
No
Replace INVERTER PCB ASS'Y
No
Replace COMP ASS'Y
61
No
Replace the Sensor
Yes
No
Replace MAIN PCB
Yes