LG WT4801CW Service Manual ▷ View online
41
5-4. PUMP MOTOR ASSEMBLY
Wiring
diagram
Circuit in the MAIN PCB/Wiring Diagram
42
5-5. INLET VALVE ASSEMBLY
Wiring
diagram
Function
Test
points
and
Result
Circuit in the MAIN PCB/Wiring Diagram
Test
Points
Result
(1)-(2)
0.8-1.2 k Ω
Depending on the cycle and water temperature, the controller will energize the hot or cold water
valve solenoids to meet the selected water temperature.
Disconnect the wiring harness and check the resistance of the valve coil.
(1) (2)
(2)
(2)
(2)
(2)
(1)
(1)
(1)
(1)
43
5-6. THERMISTOR ASSEMBLY
Wiring
diagram
Function
Test
points
Circuit in the MAIN PCB / Wiring Diagram
Wash Thermistor
The thermistor (temperature sensor) is used to monitor water temperature in the tub,
Steam Generator, Dry duct and Condensing duct.
(2)
(1)
44
Result
Wash Thermistor
76.5 kΩ
50.6 kΩ
23.6 kΩ
16.6 kΩ
50.6 kΩ
23.6 kΩ
16.6 kΩ
7.5 kΩ
5.6 kΩ
5.6 kΩ
Test Points
(1) to (2)
and
(2) to (3)
Remarks
Result
(tolerance ±5%)
At 86℉ (30℃)
At 104℉ (40℃)
At 140℉ (60℃)
At 158℉ (70℃)
At 203℉ (95℃)
At 140℉ (60℃)
At 158℉ (70℃)
At 203℉ (95℃)
At 221℉ (105℃)
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