LG F12A8HD / F12A8HD5 Service Manual ▷ View online
12
5. OPERATION
Use this button to turn the
power On/Off.
power On/Off.
Rotate the Cycle selector
knob to select the cycle
designed for different
types of fabric and soil
levels.
knob to select the cycle
designed for different
types of fabric and soil
levels.
Use this button to Start/
Stop the washer.
Stop the washer.
Time Delay : Allows the start of any cycle to be delayed
for 3~19 hours.
Steam Wash : By pressing the Steam Wash button,
Steam Function is selected, light on Steam Wash button.
Favorite : Favorite program allows you to store a
customized wash cycle for future use.
Pre Wash : Use this option for load that need pretreatment.
Add 16 minutes pre sash and drain.
for 3~19 hours.
Steam Wash : By pressing the Steam Wash button,
Steam Function is selected, light on Steam Wash button.
Favorite : Favorite program allows you to store a
customized wash cycle for future use.
Pre Wash : Use this option for load that need pretreatment.
Add 16 minutes pre sash and drain.
Medic Rinse : For best results or for cleaner rinsing, you can choose
Medic Rinse option
Rinse + Spin : This can be gepful in preventing fresh stains from setting
in fabrics.
Time Save : This option can be used to reduce the time of a wash program.
To use this option press option button before wash program is started.
Medic Rinse option
Rinse + Spin : This can be gepful in preventing fresh stains from setting
in fabrics.
Time Save : This option can be used to reduce the time of a wash program.
To use this option press option button before wash program is started.
Cycle Selecto r
Additional pro g rams
Power
Start/Pause
Option Button
14
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART
S
B
L
B
L
Hb
4
2
4
2
3
1
2
6
R
D
D
3
5
WH
2
1
3
1
1
1. AQUA STOP
2. Vcc=5V
3. WASH THERMISTOR
4. PRESSURE S/W
5. PRESSURE S/W
6. COMON
2. Vcc=5V
3. WASH THERMISTOR
4. PRESSURE S/W
5. PRESSURE S/W
6. COMON
V
3
2
4
1
4
3
2
1
1
2
1
1
3
1
G
R
R
Ha
2
1
B
L
L
176
2
4
1
Hb
4
4
NA3
4
2
2
1
+
1
3
3
33
5
1
3
2
4
Y
L
L
3
1
1
5
R
D
D
2
1
1
1
GND
WH
4
4
3
2
2
1
3
1
2
2
4
4
3
4
Aqua Lock
2
2
1
3
2
W
H
H
GND
1
5
WH
3
2
2
2
2
1
Hb
3
2
B
L
L
W
H
H
1
3
3
+
4
G
R
R
1
Ha
3
G-PJT
Wash Only_Cold/Hot
3
2
1
Ha
3
1
3
4
1
3
RD4
Hb
5
1
B
L
L
Y
L
L
2
4
6
2
1
3
1
2
2
4
+
4
1
3
3
R
D
D
GND
3
2
3
175
218
177
217
3
B
L
L
B
L
L
2
NA1
4
6
1
3
5
4
W
H
H
4
4
Ha
1
3
3
2
3
5
1
3
1
GND
DD Motor
2
3
2
V
L
L
1
2
3
3
5
B
R
R
2
4
5
3
PRESSURE
SWITCH
SWITCH
3
3
3
2
4
2
5
3
5
3
BL
2
BL1
4
3
U
1
1
3
W
3
Motor
2
R
D
D
2
6
3
5
4
1
2
1
3
1
2
2
+
4
1
WH
2
1
1
2
2
WH
2
1
AG
THERMISTOR
Wash
312
B
L
L
49 147
1. DRY3
2. DRY2
3. DRY1
4. WASH THERMISTOR
5. COMON
6. AG THERMISTOR
2. DRY2
3. DRY1
4. WASH THERMISTOR
5. COMON
6. AG THERMISTOR
11
WH/RD
13 14 15
213 214 212 215
W
H
H
4
3
1
4
2
W
H
H
1
2 3
YELLOW
V
L
L
P
K
K
AG
1
1
L
GND
WH
2
S
3
1
1
3
SENSOR
2
54
18
55
W
H
H
Wiring Diagram 1/3
S
B
L
B
L
Hb
BL
BR
4
2
YL
4
2
3
1
2
V
L
L
2
6
R
D
D
3
5
1
8
NA
1
WH
2
1
2
3
1
3
2
1
1. AQUA STOP
2. Vcc=5V
3. WASH THERMISTOR
4. PRESSURE S/W
5. PRESSURE S/W
6. COMON
2. Vcc=5V
3. WASH THERMISTOR
4. PRESSURE S/W
5. PRESSURE S/W
6. COMON
V
3
3
3
Circulation
PUMP
PUMP
2
4
1
4
3
BL
INLET VALVE
R
D
D
RD
2
1
1
1
2
1
5
NA
1
3
1
Y
L
L
6
1
3
G
R
R
Ha
2
1
B
L
L
NOID
1
BL
3
216
6
3
176
2
5
4
1
2
Hb
4
4
NA3
RED
B
L
L
GR
SOLE
3
4
2
2
BL3
1
1
NOISE FILTER
+
1
3
RD
3
3
NA
3
NA
8
5
3
1
1
3
3
2
4
Y
L
L
3
2
9
8
1
1
1
5
5
G
R
R
2
R
D
D
2
1
GR/
YL
YL
1
1
1
3
GND
WH
5
Y
L
L
4
4
8
4
4
3
2
3
2
Y
L
L
2
1
7
3
1
1
2
CON4-1
2
G
R
R
2
2
4
4
2
3
BR
O
R
R
4
Aqua Lock
2
2
Dry Model. Only
1
3
2
W
H
H
B
L
L
1
GND
FUSE
BLUE
1
5
Power
2
1
7
4
WH
3
2
2
2
1
2
2
1
4
Hb
3
2
B
L
L
W
H
H
2
4
1
RD-1
Black
1
3
3
BL
3
1
+
POWER CORD
6
5
4
4
G
R
R
1
Ha
3
R
D
D
4
G-PJT Steam Wash Only_Cold/Hot
2
3
2
2
1
1
Ha
1
3
1
3
3
4
1
2
3
RD4
Hb
1
1
5
2
1
B
L
L
Y
L
L
2
V
L
L
4
2
52
BR
5
2
BL
B
L
L
6
1
GR
/
YL
/
YL
3
2
RD
1
O
R
R
3
1
2
Pre
V/V
V/V
2
Yellow
3
2
4
+
4
1
1
3
1. Door S/W 1
2. Door S/W 3
3. Main V/V
4. Dry V/V
2. Door S/W 3
3. Main V/V
4. Dry V/V
3
R
D
D
GND
B
L
L
4
B
L
L
3
4
2
BL
3
175
6
DOOR LOCK SWITCH
4
Hot
V/V
V/V
7
218
177
GR
/
YL
/
YL
217
SBL
8
5
3
B
L
L
2
B
L
L
4
2
4
NA1
4
B
R
R
B
L
L
10
3
6
FUSE
6
R
D
D
1
3
5
4
1
W
H
H
4
Y
L
L
2
4
Ha
321
NA4
1
2
5
3
3
CON1
WHITE
2
3
5
3
3
1
3
4
3
3
6
1
1
1
BL
RD
GND
3
DD Motor
4
WASHING
5
BL
2
3
Heater
2
2
V
L
L
1
2
3
4
3
6
5
4
3
NA
Tap Relay
B
R
R
2
4
4
5
YL
R
D
D
1
B
L
L
WH4
1
3
RD
PRESSURE
SWITCH
SWITCH
3
3
3
HEATER
2
1. Door S/W4
2. AG V/V
3. Circulation Pump
2. AG V/V
3. Circulation Pump
4
4
2
3
Main
V/V
5
3
B
L
L
5
2
3
NATURE
BL
2
3
BL1
BL
4
3
1. Drain Pump
2. Pre-Wash V/V
3. Bleach(Rinse V/V)
4. Hot V/V
2. Pre-Wash V/V
3. Bleach(Rinse V/V)
4. Hot V/V
U
1
1
DRAIN
PUMP
PUMP
W
H
H
2
3
W
Buzzer
Display POWER
3
YL
MAIN PWB
G
R
R
Motor
2
R
D
D
2
1
BL
6
3
5
BR
4
Main PWB&DISPLAY PWB
DATA LINKER
DATA LINKER
3
9
1
2
2
7
1
3
3
1
3
2
2
2
Y
L
L
5
DISPLAY
1
+
4
2
4
1
WH
2
1
1
2
2
WH
2
1
AG
THERMISTOR
Wash
312
B
L
L
B
R
R
49
B
R
R
147
1. DRY3
2. DRY2
3. DRY1
4. WASH THERMISTOR
5. COMON
6. AG THERMISTOR
2. DRY2
3. DRY1
4. WASH THERMISTOR
5. COMON
6. AG THERMISTOR
11
WH/RD
13 14 15
213 214 212 215
7
B
L
L
10 9
30
8
1
2
Steam
V/V
RED
7
V
L
L
216
B
L
L
28
W
H
H
BL
B
L
L
26
9
4
BL
W
H
H
27
26
BL
GR
5
BL
28
27
GR
WH
6
3
52
31 30
70
17
BL
BL
161
161
BL
62
70
171
321
302
Tap Relay
320
171
BLUE
GR
BL
4
1
62
2
3
Tap Relay
53
Steam
302
43
31
320
BL
BL
43
43
60
BL
AG HEATER
FUSE
FUSE
GR
/
YL
/
YL
RD 60
GR
53
4
3
1
4
2
W
H
H
1
2 3
YELLOW
V
L
L
P
K
K
AG
1
1
L
GND
WH
2
S
3
1
1
3
SENSOR
2
54
18
55
W
H
H
Option
Full Wiring Diagram
1/3
2/3
3/3
15
YL
V
L
L
2
1
2
3
Circulation
PUMP
PUMP
BL
INLET VALVE
RD
1
NOID
BL
216
6
3
RED
GR
SOLE
3
BL3
RD
3
2
1
1
Y
L
L
4
3
1
G
R
R
2
BR
Dry Model. Onl
BLUE
2
1
BL
1
4
2
2
1
2
52
BR
2
3
2
Pre
V/V
V/V
1
1. Door S/W 1
2. Door S/W 3
3. Main V/V
4. Dry V/V
2. Door S/W 3
3. Main V/V
4. Dry V/V
DOOR LOCK SWITCH
4
Hot
V/V
V/V
GR
/
YL
/
YL
SBL
8
5
2
B
R
R
B
L
L
10
2
321
NA4
5
CON1
WHITE
3
3
3
BL
BL
4
4
NA
4
YL
1
B
L
L
WH4
1
RD
1. Door S/W4
2. AG V/V
3. Circulation Pump
2. AG V/V
3. Circulation Pump
4
Main
V/V
B
L
L
1. Drain Pump
2. Pre-Wash V/V
3. Bleach(Rinse V/V)
4. Hot V/V
2. Pre-Wash V/V
3. Bleach(Rinse V/V)
4. Hot V/V
DRAIN
PUMP
PUMP
YL
MAIN PWB
1
BL
3
2
3
7
B
L
L
10 9
30
8
1
2
Steam
V/V
RED
7
V
L
L
216
B
L
L
28
W
H
H
BL
B
L
L
26
9
4
BL
27
26
BL
GR
5
BL
28
27
GR
WH
6
3
52
31 30
70
17
BL
BL
161
BL
62
BLUE
GR
BL
4
1
62
2
3
Tap Relay
53
302
43
31
AG HEATER
FUSE
FUSE
GR
/
YL
/
YL
RD 60
GR
53
Option
Wiring Diagram 2/3
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