LG LRSXC2706 Series Service Manual page 58

Water mode doesn't work
1
Check the loose connection
2
Check the voltage.
(while pushing the lever S/W)
Is voltage correct compared with
table?
LEVER
INSPECTION POINT
S/W
ICE/Water Lever SW Pushing
CON2
5 pin ~ 6 pin
th th
Pushing
Yes
3 Check the voltage. Valves voltage
correct compared with table?
INSPECTION
Water
POINT
LEVER S/W
Pilot Valve
Pushing
CON1
Not
8 pin ~ 11 pin
nd th
Pushing
Water Valve
Pushing
CON1
Not
4 pin ~ 12 pin
nd th
Pushing
Yes
Change the
No
PCB
RESULT
0~2V
Not
3.5~5V
Change the
No
PCB
19.2 ~ 28.8V
0~2V
19.2 ~ 28.8V
0~2V
3
Check the resistance value.
Is Pilot Valve resistance
390~450
Pilot Valve
Valve
Pilot Valve
Yes
4
Check the resistance value.
Is Water Valve resistance
360~390
Valve
Water valve
Yes
5
Explain to customer
60
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Replace
No
Water Valve
Resistance [Ω]
390~450
Replace
No
Water Valve
Water Valve
Resistance [Ω]
330~390