LG WM4270HVA User Manual

8-4. PUMP MOTOR ASSEMBLY
Wiring
diagram
Circuit in the MAIN PWB Wiring Diagram
MICOM
IC
R
5V
Rg
Cg
Vdc
Rs
Cs
PCB
CONNECTOR
PUMP
Vac
2
1 4
3
Pump Driving circuit
MAIN PWB
NA2
1 2 3 1 2 3
3 2 1
3 2 1
1 2 3
4
1 2 3 4
BL3
SB
SB
SB
N B K B
BN
DRAIN
PUMP
CIRCULATION
PUMP
BK
Object
Function
Test
points
Result
* Each circuits of loads in wiring diagram are all same.
Two pump motors are used to drain the tub and to circulate the water / detergent solution.
Drain Pump
Drain Pump Circulation Pump
Circulation Pump
Test Points Result
(1) to (2) 10-20 Ω
Test Points Result
(1) to (2) 18-30 Ω
T.P
For Drain For Circulation
(1)(2)
(2)
(1)
(1) (2)
40

LG WM4270HVA Specifications

General

Type	Front Load Washer
Capacity	4.5 cu. ft.
Color	Graphite Steel
Energy Star Certified	Yes
Spin Speed	1300 RPM
Number of Wash Programs	14
Steam Technology	Yes
SmartThinQ (Wi-Fi)	Yes
TurboWash	Yes
Allergiene Cycle	Yes
Width	27 inches
Cycle Time	Varies by cycle