LG LFX28968SW Service Manual - Page 36
Check the Yellow/Blue to Sky blue.
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9-4 Freezer room AC Bulb Lamp doesn't work No Checking flow 1 Check the Freezer door switch. Result & SVC Action If feel sticky, Change the door s/w. 2 Check the door S/W resistance. 3 Check the Yellow/Blue to Sky blue. 4 Check the Blue to Black. Status Normal Push S/W Result 0Ω not Infinity SVC Action Go to the 3 Change door S/W Go to the 3 Change door S/W Status Closed Open Result 0V Other 5V Other SVC Action Go to the 4 Change the Door S/W Go to the 4 Change the Door S/W Status Closed Open Result 0V Other 115V Other SVC Action Explain to customer Change the Main PCB Change the F Lamp Change the main PCB - 36 -
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- 36 -
9-4
Freezer room AC Bulb 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 Yellow/Blue to Sky blue.
4
Check the Blue to Black.
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
Closed
Open
0V
Other
5V
Other
Go to the 4
Change the Door S/W
Go to the 4
Change the Door S/W
Status
Result
SVC Action
Closed
Open
0V
Other
115V
Other
Explain to customer
Change the Main PCB
Change the F Lamp
Change the main PCB
Status
Result
SVC Action
<CON7>
<CON3>