If Compressor Does Not Operate; If Compressor Does Not Operate - Samsung RFG297AARS Service Manual

TROUBLESHOOTING

4-2-18. If compressor does not operate

Refer to test function in
the manual
Did buzzer of manual operation sound?
(Check certainly after manual operation)
0~800Hz 50% Duty
Signal output
Replace PCB
Check the wire disconnection
Refer to the DIODE voltage value in
the SPM (2nd page)
300K-F(CHIP) : INVERTER PCB
R509,510,511,512,513,514,515
Start
Did 5 mins pass after
Compressor Off?
Yes
Does compressor work with
manual operation?
No
No
Is CN79 PIN #4
High?(2.5V)
Yes
No
Is the wiring between
Main and Sub normal?
Yes
Is the connector between
Main and Sub normal?
Yes
Is the connector (CN03) of
COMP normal?
Yes
Is the DIODE voltage
between Pins for a single
SPM part normal?
Yes
Is the resistance
value at the measured
position normal?
Yes
Is COMP ASS'Y normal?
Yes
Normal
92
No
Check after 5 minutes
Yes
Is freezer sensor normal?
Yes
Is the temperature
sensor of MAIN PCB
normal?
Yes
Repair OPEN & disconnection
No
Check bad contact of connector
No
Check bad contact of connector
No
Replace INVERTER PCB ASS'Y
No
Replace the resistance &
INVERTER PCB ASS'Y
No
Replace COMP ASS'Y
No
Repair OPEN & disconnection
No
Repair the sensor & replace PCB