LG LFX28992 Series Service Manual page 36

9-3 Water mode doesn't work
No
Check the loose connection on the
1
Dispenser PCB
2 Check the Purple to White on the Dispenser
PCB (While pushing the Water Button)
3 Check the Blue to Gray on the Dispenser
PCB (While pushing the Water Button)
4 Check the resistance value.
(1) (2)
<Pilot Valve>
Machine Room
Checking flow
<CON2>
<CON3>
(3) (4)
Dispenser Ice Maker
<Water Valve>
In door
Result & SVC Action
Water Button
112 ~ 115 V
Pushing
Not
pushing
Water Button
112 ~ 115 V
Pushing
Not
pushing
Point
360 ~ 420
(1) to (2)
360 ~ 420
(3) to (4)
- 36 -
Result SVC Action
Go to the 3
Other Dispenser PCB
0 ~2 V Go to the 3
Other Dispenser PCB
Result SVC Action
Go to the 4
Other Dispenser PCB
0 ~2 V Go to the 4
Other Dispenser PCB
Result SVC Action
Explain
Replace
Other
Pilot Valve
Explain
Replace
Other
Water Valve