4-2-4) When Compressor Does Not Run (Inverter Pcb) - Samsung RSG5D SERIES Service Manual

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4-2-4) When Compressor does not run (Inverter PCB)

If Red LED on the Inverter
PCB is turned on , it means
COMP is working
Refer to the Test
function in this
Operation Mode is activated, COMP
manual
Forced Operation signal
YES
sound should be checked
0~800Hz 50%
Duty Signal
NO
Output
1) Check the wire harness
2) Replace the MAIN PCB
NO
Replace INVERTER PCB
Start
Five minutes
NO
have passed since COMP
was off
YES
When Forced
NO
operates
NO
COMP operation
signal(CN103 #4&#6) is
High(about 2-2.5V)
YES
Is DC 15V applied to
ZD501?
YES
YES
NO
COMP Connector(CN04)
is Good
YES
NO
COMP ASS'Y is Good
YES
Normal
70
Check in 10 minutes.
NO
F-Sensor is good.
Replace
YES
F-Sensor.
NO
Temperature sensing part
of MAIN PBA is good.
Repair the sensing
YES
part or Replace MAIN PBA
Replace MAIN PBA
or Repair the
connection
1) Check the COMP Wire
2) Check the Compressor
Replace COMP ASS'Y