LG LFCC22426S - Page 44

-62-
CON7
17
th
pin ~ 20
th
pin
Resistance [Ω]
40k
30k
23k
17k
13k
10k
-22ºF / -30ºC
-13ºF / -25ºC
-4ºF / -20ºC
-13ºF / -25ºC
14ºF / -10ºC
23ºF / -5ºC
32ºF / 0ºC 8k
Over cooling in Freezer compartment
1
Check the sensor resistance.
2
Check the air flow in test
mode 1 & 3
(Push the button 1 or 3 time)
3
Check the Fan motor.
Rotate fan using hand.
It feel sticky?
Yes
Change the
Fan motor
Fan Motor
No
4
Change the Main PCB
Test1 Air Flow
Test3 No Air Flow
NG
OK
Explain to
customer