LG LTN16385PL Service Manual page 49

4. Overcooling in refrigerator section.
No Checking Flow
1
Refrigerator is properly connected?
2
When opens the door, lamps or LEDs are working?
3
Remove the PCB cover, then measure the voltage
on CON1, as shown in image.
C
O
N
1
4
Remove the PCB cover, then check the voltage on
CON1, as shown in image.
C
O
N
1
Neutral
Neutral Live
Comp
Result & SVC Action
Result
OK Go to 2
Result
Yes Go to 3
No
See the section Lamp/LED:
Problem persists?
NO: Explain to customer.
YES: Go to 3
Result
115V/127V/220V
0~5 VAC
Result
TEST MODE 1 115V/127V/220V*
Other
TEST MODE 2 0~5VAC
Other
REMARK: If refrigerator is not cooling in few
minutes, refer to section "Poor Cooling".
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SVC Action
SVC Action
SVC Action
Go to 4
Replace power cord.
SVC Action
Normal
Replace PCB.
Normal
Replace PCB.