Samsung RT40MA - Detecting Defects and Trouble Shooting; When Refrigerator Temperature Is too High or too Low

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1. When refrigerator temperature is too high or too low:
3. Detecting Defects and Trouble Shooting
Start-Up
-Is the NOTCH of refrigerator
temperature controller OK?
Is the S/W contact of
refrigerator temperature
controller OK?
Voltages and Resistance
values of each ROTARY S/W on
CN01 of MAIN PCB OK?
Is the resistance
value of refrigerator sensor OK?
(see separate temperature
Table)
Control temperature controller.
(see temperature controller circuit)
Repair MAIN PCB ASS'Y and other
COMP connection unit.
NO
Replace temperature
controller.
NO
Repair connector part and
wires.
NO
Replace refrigerator sensor
NO
YES
YES
YES
YES
Y