LG LFX25992ST Service Manual page 46

9-5 Refrigerator room lamp doesn't work
No
1 Check the Refrigerator door switch.
2 Check the door Switch resistance.
3 Check the Red/yellow to Pink.
<CON7>
4 Check the Red to Black.
5 Check the Black to Blue.
Checking flow Result & SVC Action
If feel sticky, Change the door s/w.
Status Result
0
Normal
Other
Infinity
Push
S/W
Other
Status Result
12 V
Normal
Other
Status Result
12 V
Normal
Other
Status Result
0 ~ 2 V
Closed
Other
12 V
Open
Other
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SVC Action
Go to the 3
Change door Switch
Go to the 3
Change door Switch
SVC Action
Go to the 4
Change the PCB
SVC Action
Go to the 5
Change the LED Lamp
SVC Action
Explain to customer
Change the Door S/W
Explain to customer
Change the LED Lamp