LG WD-12270RDA Service Manual ▷ View online
11
5. WIRING DIAGRAM
/
PROGRAM CHART
MAIN PWB
DISPLAY PWB
DOOR LOCK SWITCH
13 PIN CONNECTOR
12 PIN CONNECTOR
#250 TERMINAL+HOUSING
RING TERMINAL GROUND
2 PIN CONNECTOR
1 PIN CONNECTOR
#250 TERMINAL
(NOTES)
FAN MOTOR
2
2
3
3
WH
1
1
WH
6
6
4
4
3
3
5
5
2
2
1
1
YL
3
2
WH
1
2 3
1
RD
6
4
3
5
6
4
3
5
2
1
2
1
HEATER
PRESSURE
SWITCH
SENSOR
6 PIN CONNECTOR
5 PIN CONNECTOR
4 PIN CONNECTOR
3 PIN CONNECTOR
THERMISTOR
TH2
TH1
TH4
TH3
1 2
1 2
1 2
1 2
2
1
3
2
1
3
MOTOR
2
2
1
1
3
3
W
Ha
Hb
2 3
1
1
2
2
3
3
3
V
U
2 1
1
1
2
2
+
5
5
4
4
4
1
3
3
GND
DRAIN PUMP
2
INLET VALVE
2
1
3
3
3
2
2
2
1
1
1
BALL
1 2
1
3
3
2
2
2
1
1
1
2
1
BL
NA
CON3
NA
5 6
3
2
4
3 2 1
4
5 6
3
2
4
1
1
1
4
RD
WH
3 2 1
3 2
3
2
1
1
2
3
4
9 10 11
7 8
5 6
NA
RD
2 3
3
2 3
3
1
2
1
2
2 3
3
2 1
1
3
2
1 2 3
4
1
4
1
4
1
CON3
NA
BL
1
2
3
1
2
3
6
6
5
4
5
4
YL
4
3
2
3
4
2
1
WH
WH
1
1
1
1
1
1
CON2
6
7 8
4 5
2 3
WH
2 3
2 3
13
12
11
2 3
DRY
1
1
10
9
1
8
6
7
4 5
8
7
6
4 5
6
7 8
4 5
2
2
2
3
3
3
7
6
8
4 5
2 3
13
12
11
13
11 12
13
12
11
13
11 12
10
9
9 10
10
9
9 10
CON2
P
T
C
T
C
P
SOLE
NOID
CORD
POWER
C P
1
5
4
2
3
2
4 3
1
1
1
1
1
FUSE
WASHING
HEATER
NOISE
FILTER
NA
WH
WH
CON1
RD
1
3
2
1
3
2
7
6
5
4
2 3
1
3
2
1
WH
2
3
1
2
3
1
12
10 11
8 9
7
6
5
4
3
2
4 5 6
7
3
2
7
6
5
4
3
2
1
1
1
4 5 6
7
2 3
1
12
10 11
12
10 11
12
10 11
9
8
9
8
8 9
12
10 11
8 9
CON1
BK YL
OR BL BN GY
WHBL BK GY PI
BL RD
YL
BL RD
GY WH
VT SB WH
YL RD RD
BN
YL BK
YL BL
GY WH
SB
BL
BL YL
RD
BL GN
BN
WH
WH
WH
WH
WH
BL
BL BL
BL
BL
BL BL
GY WH
WH
WH
WH
BL
RD
YL
NA
BL
RD
BL
NA
BK
BK
BK
RD
GN
NA
GN
BL
BN
BK
WH
RD
BK
GN
WH
BL
BN
GY
PI
WH
SB
SB
BK
BK
BN
CIRCULATION PUMP
HOT
DRY
MAIN
WASH
PRE
WASH
PI
2:19
1:22
1:04
1:01
52
30
1:21
18
1
Duvet
12
Time Save button
• Use this button to turn the power
On/Off.
• Rotate the Cycle selector
knob to select the cycle
designed for different
types of fabric and soil
levels.
designed for different
types of fabric and soil
levels.
• This option can be used to reduce the time of a wash program.
• To use this option press the Time Save button once before the wash
program is started.
• Use this button to Start/
Stop the washer.
• This display shows:
a) the estimated time remaining in the
cycle when operating.
b) an error code when an error has been
detected.
5. OPERATION
13
Option button
Dry SELECTOR
Time Delay button
Rinse, Spin and Temp
For Manual
For Manual
• Use this option to prevent unwanted use of the washer.
Press and hold Option and Rinse button for 3 seconds
to lock/unlock control.
to lock/unlock control.
• When Child lock is set, CHILD LOCK lights and all
buttons are disabled except the Power button. You can
lock the washer while it is operating.
lock the washer while it is operating.
• Use these button to change
Rinse/Spin/Temp./Beeper
• When lamp is off, no selection has been
mode.
• Pre Wash and Soak available for Cotton,
Cotton-Eco and Synthetic.
• Allows the start of any
cycle to be delayed for
3~19 hours.
3~19 hours.
• Dry program can be
selected by pressing the
DRY button.
DRY button.
• By pressing the DRY button,
[Cupboard
➔Very➔
20/40/60/80/100
➔Low
Temp.
➔Iron] can be
selected.
• Pre Wash: Use this option for loads that need pretreatment.
It adds 17 minutes prewash and drain.
• Rinse+Spin: Use this option to rinse and then spin.
• Spin Only: If you want Spin Only Select the this option.
• Soak: Use this mode to wash normal clothes or think and
heavy clothes which are excessively dirty
• Dry Only: When you want Dry only, select the this option.
• These lights show which portion of the
cycle the washer is operating.
14
7. TROUBLESHOOTING
7-1. BEFORE PERFORMING SERVICE
Be careful of electric shock when disconnecting parts while troubleshooting.
The voltage of each terminal is 120 V AC and DC when the unit is plugged in.
7-2. QC TEST MODE.
The washer must be empty and the controls must be in the off state.
1. Press the SPIN SPEED and SOIL LEVEL buttons simultaneously.
2. Press the Power button, while the above condition. Then buzzer will sound twice.
3. Press the Start/Pause button repeatedly to cycle through the test modes.
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
Press the SPIN SPEED and SOIL LEVEL button simultaneously.
So, for example a display indicating 241: a Water level frequency of 241 x.1 kHz
= 24.1 kHz
The digits indicate the water level frequency ( x.1 kHz ).
Check Point
Display Status
None
Turns on all lamps and locks the door.
1 time
Tumble clockwise.
rpm (40~50)
2 times
Low speed Spin.
rpm
3 times
High speed Spin.
rpm
4 times
Inlet valve for prewash turns on.
Water level frequency (25~65)
5 times
Inlet valve for main wash turns on.
Water level frequency (25~65)
6 times
Inlet valve for hot water turns on.
Water level frequency (25~65)
7 times
Inlet valve for bleach turns on.
Water level frequency (25~65)
8 times
Inlet valve for dry turns on.
Water level frequency (25~65)
9 times
Tumble counterclockwise.
rpm (40~50)
10 times
Heater turns on for 3 sec.
Water temperature
11 times
Circulation pump turns on.
Water level frequency (25~65)
12 times
Drain pump turns on.
Water level frequency (25~65)
13 times
Dry fan & motor turns on.
Water level frequency (25~65)
14 times
Power off and unlock the door.
Turn off all lamps.
Number of times the
Start/Pause button is pressed
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