LG LFX25974 Series - Water Filter Replacement Guide

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