LG LSSB2691ST Service Manual page 49

TROUBLESHOOTING
3. Troubleshooting With Error Display
18) Poor cooling in Freezer compartment
No
1
Check the sensor resistance.
The sensor is determined by the
temperature.
For example, 23
2 Reset the unit and Input Test 1 Mode.
(push the button 1 time)
Open the freezer door and Check the air flow.
3
Check the air temperature. Cold or not?
4
Checking flow
indicates -20 .
Result & SVC Action
(1) To (2)
-22 -30
-13 -25
-4 -20
5 -15
14 -10
23 -5
32 0
Status
Windy
No windy
Status
Cold
Not cold
49
Result
40
30
23
17
13
10
8
SVC Action
Go to the 4
SVC Action
Explain to customer