LG LRSES2706V /01 Service Manual page 60

Refrigerator room LED doesn't work
1
Check the Freezer door switch.
Does it feel sticky?
No
2
Check the door S/W resistance.
Is it correct compared with table?
Resistance [Ω]
Door S/W
Door Close
Yes
3
Check the PCB Voltage.
Is CON7 7th pin ~ 8th pin
voltage 12V?
INSPECTION
DOOR
POINT
Close
CON7
7 th pin ~ 8 th pin
Open
Yes
Change the
Yes
Door S/W
Change the
No
Door S/W
Door S/W
0
Change the
No
PCB
CON7
Voltage [V]
0~2V
12V
4
Check the LED Lamp voltage.
Is it 0~2V? (While door closed)
Yes
5
Check the LED Lamp voltage.
Is it 12V? (While door open)
Yes
6
Explain to customer
60
Copyright © 2020 LG Electronics Inc. All rights
reserved. Only training and service purposes.
Change the
No
Door S/W
Change the
No
LED Lamp