LG LBC24360ST Service Manual - Page 29

Troubleshooting Without Error Display

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8. TROUBLESHOOTING WITHOUT ERROR DISPLAY 8-1 Freezer room LED 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 1.- Check for loose connection in CON8. 2-. Check voltage between wires Purple/White to Gray/White. Status Normal Push S/W Result 0 not Infinity Other SVC Action Go to the 3 Change door S/W Go to the 3 Change door S/W Status Normal Result 12 V Other SVC Action Go to the 4 Change the PCB 1.- Check for loose connection in CON7. 2-. Check voltage between wires Purple/White to Gray/White. 1.- Check for loose connection in Freezer 4 LED Lamp connector. 2-. Check voltage between wires Red to Black. Status Closed Open Result 0~2 VDC Other 12 VDC Other SVC Action Explain to customer Change the Door S/W Explain to customer Change the LED Lamp 29

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8-1 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
4
Normal
Push
S/W
0
not
Infinity
Other
Go to the 3
Change door S/W
Go to the 3
Change door S/W
Status
Result
SVC Action
Normal
12 V
Other
Go to the 4
Change the PCB
Status
Result
SVC Action
Closed
Open
0~2 VDC
12 VDC
Other
Other
Explain to customer
Explain to customer
Change the Door S/W
Change the LED Lamp
Status
Result
SVC Action
<CON8>
8. TROUBLESHOOTING WITHOUT ERROR DISPLAY
1.- Check for loose connection in
.
2-. Check voltage between wires
.
CON8
Purple/White to Gray/White
1.- Check for loose connection in
.
2-. Check voltage between wires
Purple/White to
.
CON7
Gray/White
1.- Check for loose connection in Freezer
LED Lamp connector.
2-. Check voltage between wires
.
Red to
Black
<Drawer Model>
<Swing Model>
29