Samsung RF23HT Series Service Manual page 95

TROUBLESHOOTING
4-2-9. When Compressor does not run (Inverter COMP.)
Function in this manual
Forced Operation signal sound
should be checked
0~800Hz 50% Duty
Signal Output
1) Check the wire harness
2) Replace the MAIN PBA
No
AC input applied to
Check the Noise Filter &
Power Cord
Make sure the connector is
passed since COMP
When Forced Operation
Refer to the TEST
mode is activated, COMP
Yes
No
COMP operation signal
(CN103 #1 <>#3) is about
No
Is DC 15V applied to
CN101?
Is DC 5V applied to
Yes
plugged properly.
COMP Connector (CN102) is
COMP ASS'Y is Good
Start
No
10 minutes have
was off
Yes
No
operates
Yes
DC2~3V
Yes
ZD501?
Yes
No
C108(C110)?
Make sure the connector is
Yes
plugged properly.
No
Good?
Yes
1) Check the COMP Wire
2) Check the Compressor
No
Yes
Replace COMP ASS'Y
Normal
95
Check in 10 minutes
F-Sensor is Good
Yes
Temperature sensing
part of MAIN PBA is
Good
Yes
Replace MAIN PBA or
Repair the connection
No
Replace F-Sensor
No
Repair the sensing
part or Replace
MAIN PBA