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Over 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
Check the Fan operation by
placing your hand in front of
the vents to feel for any cold
air flow.
Door
Fan-Motor
Open
OFF
Closed
ON
No
Reconnect
Yes
Replace
No
MAIN PWB
(Position
No : 500A)
Replace
Yes
Fan
- 47 -
Enter the TEST 2 MODE
Does the cold-air coming out
of the top of the main duct?
Yes
Checking Damper itself
Is the resistance Values
between (1) & (4), (2) & (3)
like as below?
(1)RD
(3)BL
(4)YL
(2)WH
Resistance of Damper
Test Point
Result
(1) To (4)
373 ~ 456
(2) To (3)
373 ~ 456
Yes
Check the
No
Damper
itself
Replace
No
Damper
(Position No
: 120A)
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