LG LFX2597 Series - Water Mode Malfunction Diagnosis

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9-3 Water mode doesn’t work
No
1
2
Checking flow
Check the loose connection on the
Dispenser PCB
Check the Purple to White on the Dispenser
PCB (While pushing the Water Button)
Result & SVC Action
Pushing
Not
pushing
112 ~ 115 V
Other
0 ~2 V
Other
Go to the 3
Dispenser PCB
Go to the 3
Dispenser PCB
Water Button Result SVC Action
(3) (4)
4 Check the resistance value.
<Pilot Valve>
Machine Room
<Water Valve>
In door
(1) to (2)
(3) to (4)
360 ~ 420
Other
360 ~ 420
Other
Explain
Replace
Pilot Valve
Explain
Replace
Water Valve
Point Result SVC Action
(1) (2)
Dispenser Ice Maker
<CON3>
3 Check the Blue to Gray on the Dispenser
PCB (While pushing the Water Button)
Pushing
Not
pushing
112 ~ 115 V
Other
0 ~2 V
Other
Go to the 4
Replace Main PCB
Replace Main PCB
Go to the 4
Water Button Result SVC Action
< C ON2>
< M ain>
Ω
Ω