LG LFX28968D Service Manual page 59

Poor cooling in Freezer compartment
1
Check the sensor resistance.
CON7
th th
15 pin ~ 16 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 fresh food door and
Check the air flow. Windy?
Yes
Resistance [Ω]
40k
30k
23k
17k
13k
10k
8k
Check the F
Fan Motor
No
Go to 5
4
Check the air temperature.
Is it cold?
Yes
5
Check the Fan motor.
Rotate fan using hand.
It feel sticky?
Fan Motor
No
Check the
Compressor
No
and sealed
system
Change the
Yes
Fan motor