LG LFX28968D Service Manual page 49

Crush mode doesn't work
1
Check the loose connection
2
Check the voltage.
(while pushing the lever S/W)
Is voltage correct?
(SB) (WH)
LEVER S/W
CON2
rd th
3 pin ~ 4 pin
Yes
3
Check the voltage.
(while pushing the lever S/W)
Is voltage correct compared with
table?
LEVER S/W
th
CON3 5 pin ~
th
CON1 13 pin
Yes
Change the
No
PCB
CON2
Voltage [V]
Pushing 112~115V
Not
0~2V
Pushing
Change the
No
PCB
Voltage [V]
Pushing 9~12V
Not
0~2V
Pushing
4
Check the resistance value.
Is Geared Motor resistance
87 ~ 107Ω?
Geared Motor
Geared Motor
Yes
5
Check the resistance value.
Is Dispenser Motor resistance
9.9 ~ 12.1Ω?
Dispenser Motor
Dispenser Motor
Yes
6
Explain to customer
Replace
No
Geared Motor
Resistance [Ω]
31.1 ~ 42.1
Replace
No
Geared Motor
Resistance [Ω]
9.9 ~ 12.1