LG LFCS27596S Service Manual page 53

8-15. Freezer room upper lamp doesn't work
Symptom
1. Freezer room upper
lamp doesn't work
CON1
CON201
1. Check the Freezer door switch sticky
2. Check the door S/W resistance
3. Check the LED Lamp
CON2 CON3
CON4
Check Point
F U LED PCB
CON5
CON6
CON7
S/W Resistance [Ω]
Open
Door
Close
CON7
th th
31 pin ~ 32 pin
F-Door LED Lamp
Open White ~ Black
Close White ~ Black
Door S/W
Infinity
0
Voltage [V]
12V
Voltage
[V]
12V
0~2V