LG LFX25978 Series, Service Manual

Page: 37 / 84

- 37 -
9-4 Freezer room AC Bulb Lamp doesn’t work
No
1
Checking flow
Check the Freezer door switch. If it is stuck, Change the door s/w.
Result & SVC Action
2 Check the door S/W resistance.
3 Check the Blue White to White Red.
4 Check the Red to Black.
Closed
Open
0 ~ 2 V
Other
115 V
Other
It’s normal
Change the Door S/W
Change the F Lamp
Change the PCB
Status Result SVC Action
Closed
Open
5 V
Other
0 V
Other
Go to the 4
Change door S/W
Go to the 4
Change door S/W
Status Result SVC Action
Normal
Push
S/W
0
not
Infinity
Go to the 3
Change door S/W
Go to the 3
Change door S/W
Status Result SVC Action
<CON5>
<CON3>