Inlet Valve Assembly - LG WM3988HWM Service Manual

9-5. INLET VALVE ASSEMBLY

Wiring
diagram
Function
Test
points
and
Result
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Circuit in the MAIN PWB
MICOM
Inlet valve driving circuit
Wiring Diagram
BL
1 2
DRY
VALVE
Depending on the cycle and water temperature, the controller will energize the hot or
cold water valve solenoids to meet the selected water temperature.
After pull out the connector of defective valve, check the resistance.
(1)
(1)
(2)
(2)
(1)
(1)
(1) (2)
(1)
(2)
(2)
(2)
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Rg Cg
IC
CONNECTOR
MIAN PWB
BL3
1 2 3 4 NA 3 2 1
1 2 3 4 3 2 1
COMMON
WH YL VI
(BK)
NA RD
1 2 1 2 1
MAIN AG PRE
WASH VALVE WASH
INLET VALVE
* Each circuits of loads in wiring diagram are all same.
(1)
(1)
(1)
45
Vdc
Rs
Vac
Cs
PCB
INLET
VALVE
WH
1 2 3 4
1 2 3 4
GYOR BL
BL BL RD
2 1 2 1 2
HOT
BLEACH
VALVE
(2)
(2)
(1)
Test points
(2)
(2)
Result 0.8-1.2 kΩ
(1)-(2)