LG WM2150HS Service Manual ▷ View online
44
9-7. THERMISTOR ASSEMBLY
Wiring
diagram
diagram
Circuit in the MAIN PWB / Wiring Diagram
MAIN PWB
MICOM
NA3
BL
WH
1
2
WASH
THERMISTOR
3
4
5
6
1
5V
5V
R
R
R
R
C
C
C
C
2
3
4
5
6
Function
Test
points
& Result
points
& Result
The thermistor (temperature sensor) is used to monitor water temperature in the tub
or Steam Generator.
or Steam Generator.
Wash Thermistor
(1)
(2)
Test
Points
(1)
to
(2)
Result
(tolerance ±5%)
39.5 kΩ
26.1 kΩ
12.1 kΩ
8.5 kΩ
3.8 kΩ
2.8 kΩ
Remarks
At 86°F (30°C)
At 104°F (40°C)
At 140°F (60°C)
At 158°F (70°C)
At 203°F (95°C)
At 221°F (105°C)
10. DISASSEMBLY INSTRUCTIONS
45
CONTROL PANEL ASSEMBLY
1
Unscrew 2 screws on the back of the top plate.
Be sure to unplug the machine before disassembling and repairing the parts.
2
Pull the top plate backward and upward as shown.
4
Pull out the drawer and unscrew 2 screws.
5
Remove one screw.
8
Disassemble the Display PWB Assembly.
6
Lift the side the control panel assembly and
pull it out
7
Unscrew the 8 screws from the control panel
assembly.
3
Disconnect the Display PWB assembly connector
from trans cable.
46
MAIN PWB ASSEMBLY
1
Disconnect the POWER connector and SENSOR
SWITCH ASSEMBLY.
2
Remove the Protective cover.
3
Disconnect the connectors.
4
Unscrew 1 screw on the back.
5
Remove the Main PWB.
47
Wire Color
Blue Housing (YL-BK)
White Housing (WH-BK)
Blue Housing (GY-BK)
Red Housing (BL-BK)
DISPENSER ASSEMBLY
NOISE FILTER
1
Disassemble the top plate assembly.
2
Pull out the drawer.
1
Disassemble two (or three) connectors from
the NOISE FILTER.
2
Unscrew a screw from the TOP BRACKET.
4
Unscrew the Clamp nut at the lower part of the
dispenser.
5
Disassemble the 4 connectors from the valves.
6
Unscrew 2 screws from the back of the cabinet.
3
Push out the DISPENSER ASSEMBLY after
unscrewing 2 screws.
1
2
3
4
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