LG LFX25978 Series, Service Manual

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9-5 Refrigerator room lamp doesn’t work
No
1
Checking flow
Check the Refrigerator door switch. If it is stuck, Change the door s/w.
Result & SVC Action
2 Check the door S/W resistance.
3 Check the Black to Orange.
4 Check the Red to Blue.
Closed
Open
0 ~ 2 V
Other
12 V
Other
It’s normal
Change the Door S/W
It’s normal
Change the LED Lamp
Status Result SVC Action
Normal
Push
S/W
0
not
Infinity
Other
Go to the 3
Change door S/W
Go to the 3
Change door S/W
Status Result SVC Action
Normal
12 V
Other
Go to the 4
Change the PCB
Status Result SVC Action
Normal
12 V
Other
Go to the 5
Change the LED Lamp
Status Result SVC Action
5 Check the Red to Blue.
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