LG LFX25973 Series Service Manual page 35

9-4 Freezer room AC Bulb Lamp doesn't work
No
1 Check the Freezer door switch.
2 Check the door S/W resistance.
3 Check the Yellow/Blue to Sky blue.
4 Check the Blue to Black.
Checking flow
<CON7>
<CON3>
Result & SVC Action
If feel sticky, Change the door s/w.
Status Result
0 Ω
Normal
not
Infinity
Push
S/W
Status Result
0V
Closed
Other
5V
Open
Other
Status Result
0~2V
Closed
Other
115V
Open
Other
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SVC Action
Go to the 3
Change door S/W
Go to the 3
Change door S/W
SVC Action
Go to the 4
Change the Door S/W
Go to the 4
Change the Door S/W
SVC Action
Explain to customer
Change the Main PCB
Change the F Lamp
Change the main PCB