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?
CON3
Pin12 BK Pin4 BL
Voltage of Compressor
Test Point
Result
Pin4 To Pin12
115 V
Yes
Yes
Reconnect
Replace
No
MAIN PWB
(Position
No: 500A)
- 58 -
Is the voltage between pins 2
and pin 3 of CON4 like as
below?
pin2 WH
Pin3 BK
CON4
Voltage of F-fan
Test Point
Result
Pin2 To Pin3
12 ~ 16 V
Yes
Feedback check.
Is the voltage between Pin 3
and pin 4 of CON4 like as
below?
Pin3 BK
Pin4 PR
CON4
Test Point
Result
Pin3 To Pin4
1 ~ 4 V
Yes
Replace
No
MAIN PWB
(Position
No: 500A)
Replace
No
MAIN PWB
(Position
No: 500A)