Samsung RB215LABP - 12-3) When COMP does not operate

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Diagnostics
“Check out the COMP with the Forced Operation selected”
1. If it does not pass 5 min after a desired Temp reached,COMP does not operate.
2. During Defrost,COMP does not operate.
3. With the disconnected F-Sensor or R-Sensor,COMP does not operate because low
temperature is detected.
Pre-Check
12-3) When COMP does not operate
NO
NO
NO
NO
NO
NO
Run Forced Operation
Is Forced Operation on?
Is the
MICOM #22 output
"HIGH"(5V)?
Is the IC70 #12
"LOW"(0.7V)?
Is COMP RELAY normal?
Is the contact
of CONNECTOR CN70
contact normal
Does
COMP ASS'Y Function
normally?
Start
YES
Soldering checkout/
Change MICOM or PCB
Change or repair IC70/
Change PCB
YES
Check RELAY /
Change PCB
YES
Insert Connector completely /
Check its connection
YES
YES
Change/repair COMP
YES
Check wire assembly/connection