Poor Cooling In The Refrigerator Compartment - Kenmore 795.77562600 Service Manual

Poor cooling in the refrigerator compartment

MAIN PWB
Is the connection loose?
CON3
No
Enter the TEST 1 MODE
Is the voltage between
Pins 4 and pin 12 of CON3
like as below?
Pin12 BK Pin4 BL
Voltage of Compressor
Test Point
pin4 to pin12
Yes
Yes Replace
Reconnect
Yes
Main PCB
CON3
Result
115 V
- 38 -
Is the voltage between
pins 1 and pin 2 of CON4
like as below?
Voltage of F-fan
Test Point
pin1 to pin2
Yes
Feedback check.
Is the voltage between
Pin 2 and pin3 of CON4
like as below?
Feedback voltage of F-fan
Test Point
pin2 to pin3
Yes
Replace the
No
Main PCB
Pin1 WH
Pin2 BK
CON4
Result
12 ~ 16 V
Replace the
No
Main PCB
Pin2 BK
Pin3 PR
CON4
Result
11 ~ 4 V