When Compressor Does Not Run (Inverter Comp.) - Samsung RF31FM Series Manual

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6. Self Diagnosis & Trouble Shooting

6-7. When Compressor does not run (Inverter COMP.)

Refer to the TEST
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 PCB
Replace INVERTER
PCB
10 minutes have
passed since COMP
When Forced Operation
mode is activated, COMP
YES
COMP operation
signal(CN103 #4&#6) is
NO
High(about 2-2.5V)
Is DC 15V applied to
NO
Start
NO
was off
YES
NO
operates
YES
YES
ZD501?
YES
Check in 10 minutes
NO
F-Sensor is Good
YES
Replace F-Sensor
Temperature sensing
NO
part of MAIN PBA is
Good
Repair the sensing
YES
part or Replace
MAIN PBA
Replace MAIN PB
A or Repair the
connection
To do list
190