LG LMX28988 Series - Water Filter Performance Data; NSF Performance Data Sheet

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9-4 Freezer room LED lamp doesn’t work
No
1
Checking flow
Check the Freezer door switch. If feel sticky, 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 VDC
Other
12 VDC
Other
Explain to customer
Change the Door S/W
Explain to customer
Change the LED Lamp
Status Result SVC Action
Normal
Push
S/W
0
Ω
not
Infinity
Go to the 3
Change door S/W
Go to the 3
Change door S/W
Status Result SVC Action
Normal
12 VDC
Other
Go to the 4
Change the PCB
Status Result SVC Action
<CON5>