LG LFXS30726 series - Refrigerator Room Lamp Doesn’t Work

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SymptomCheck Point
1. Refrigerator room
lamp doesn’t work
1. Check the Refrigerator door switch sticky
2. Check the door S/W resistance
3. Check the LED Lamp
Resistance [Ω]
Door S/W
Normal 0
Push S/WInfinity
Voltage [V]
CON6
28
th
pin ~ 30
th
pin
12V
LEDLamp
LED Lamp Voltage [V]
Blue~ Black
Closed 0~2V
Open 12V
LEDLamp
CON7
CN1
CON201
CON2
CON1
CON3
CON5
CON6
CON6
Door S/W
8-17. Refrigerator room lamp doesn’t work