LG LFXS30786 Series Service Manual page 69

Poor cooling in Freezer compartment
1
Check the sensor resistance.
CON7
Resistance [Ω]
19 th pin ~ 20 th pin
-22ºF / -30ºC
-13ºF / -25ºC
-4ºF / -20ºC
-13ºF / -25ºC
14ºF / -10ºC
23ºF / -5ºC
32ºF / 0ºC
2 Reset the unit and
Input Test1 Mode.
(Push the button 1 time)
3
Open the Freezer door and
Check the air f low. Windy?
Yes
40k
30k
23k
17k
13k
10k
8k
Check the F
Fan Motor
No
Go to 5
- 69 -
4
Check the air temperature.
Is it cold?
Yes
5
Check the Fan motor.
Rotate f an using hand.
It f eel sticky?
Fan Motor
No
Check the
No Compressor
and sealed
system
Change the
Yes
Fan motor