LG LFX28968SW Service Manual - Page 34

Check the RED to White Red.

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9-2 Cube mode doesn't work No Checking flow Result & SVC Action 1 Check the loose connection on the Dispenser PCB 2 Check the Skyblue to White on the Dispenser Ice Button Result SVC Action PCB (While pushing the Ice Button) 112 ~ 115 V Go to the 3 Pushing Other Dispenser PCB Not pushing 0 ~ 2 V Other Go to the 3 Dispenser PCB 3 Check the RED to White Red. (While pushing the Ice Button) Ice Button Pushing Not pushing Result 9 ~ 12 V Other 0 ~ 2 V Other SVC Action Go to the 4 Dispenser PCB Go to the 4 Dispenser PCB 4 Check the resistance value. Point (1) to (2) (3) to (4) Result 31.1 ~ 42.1 Ω Other 9.9 ~ 12.1 Ω Other SVC Action Explain Replace Explain Replace (1) (2) (3) (4) - 34 -

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- 34 -
9-2
Cube mode doesn’t work
No
1
2
Checking flow
Check the loose connection on the
Dispenser PCB
Check the Skyblue to White on the Dispenser
PCB (While pushing the Ice Button)
Result & SVC Action
<CON2>
3
Check the RED to White Red.
(While pushing the Ice Button)
4
Check the resistance value.
<CON1>
<CON3>
<Ice Maker>
<AC Indoor Motor>
<Dispenser Motor>
(2)
(1)
(3)
(4)
Pushing
Not
pushing
112 ~ 115 V
Other
0 ~ 2 V
Other
Go to the 3
Dispenser PCB
Go to the 3
Dispenser PCB
Ice Button
Result
SVC Action
Pushing
Not
pushing
9 ~ 12 V
Other
0 ~ 2 V
Other
Go to the 4
Dispenser PCB
Go to the 4
Dispenser PCB
Ice Button
Result
SVC Action
(1) to (2)
(3) to (4)
31.1 ~ 42.1
Ω
Other
9.9 ~ 12.1
Ω
Other
Explain
Replace
<AC Indoor Motor>
Explain
Replace
<AC Indoor Motor>
Point
Result
SVC Action