LG F12A9TDP3S Service Manual ▷ View online
18
7-4. ERROR DISPLAY
If you press the [Start/Pause] button when an error in displayed, any error except software ERROR will
disappear and the machine will change into pause status.
In case of , , , if the error is not resolved within 15 sec. In case of other errors, if the
error is not resolved within 4 min. Power will be turned off automatically and the error only will be
blinked. But in the case of , power will not be turned off.
disappear and the machine will change into pause status.
In case of , , , if the error is not resolved within 15 sec. In case of other errors, if the
error is not resolved within 4 min. Power will be turned off automatically and the error only will be
blinked. But in the case of , power will not be turned off.
ERROR
SYMPTOM
CAUSE
WATER
I
NLET
E
RROR
Water has not reached to the pre-set level within 4 min.
since inlet valve operated, or water has not reached to
the normal level within 25 min.
Page 21
1
U
NBALANCED
E
RROR
2
WATER
O
UTLET
E
RROR
3
OVER
F
LOW
E
RROR
4
The appliance is tilted.
Laundry is gathered to one side.
Non distributable things are put into the drum.
Laundry is gathered to one side.
Non distributable things are put into the drum.
Page 22
Water has not drained enough within 8 min.
Page 23
Water is automatically being pumped out because too
amuch water is in the tub.
Page 25
P
RESSURE SENSOR
S/W
E
RROR
5
The sensor pressure switch is out of order.
Page 26
D
OOR OPEN
E
RROR
6
The [Start/Pause] button is pressed with the door open.
The door switch is out of order.
The door switch is out of order.
Page 27
T
HERMISTOR(HEATING)
E
RROR
7
The thermistor is out of order.
Page 28
P
OWER
F
AILURE
10
The washer experienced a power failure.
C
URRENT
E
RROR
8
PWB ASSEMBLY (Main) is out of order
Replace the PWB assembly (Main)
Winding in the MOTOR is short-circuited.
Replace the MOTOR
MOTOR
L
OCKED
E
RROR
9
The Connector (3-pin, male, white) in the wire harness
is not connected to the Connector (3-pin, female, white)
of MOTOR.
Reconnect or repair the connector
The electric contact between the connectors [3-pin,
male, white in the wire harness and 6-pin, female, white
in the PWB ASSEMBLY (Main]) is bad or unstable.
Reconnect or repair the contact in the connector
The wire harness between the MOTOR and PWB
ASSEMBLY (Main) is cut (open circuited).
The hall sensor is out of order/defective.
Page 29
14
5
6
7
6
6
6
布
布
(分)
准
工
Rinse
Spin
wash
Cyc
Step
Wa
ter
in
ter
in
Time is calculated by
minute
minute
90
℃
75
℃
60
℃
40
℃
Cold
M
osi
n
osi
n
Wa
sh
sh
W
at
er
in
at
er
in
Ri
ns
e
ns
e
G
an
tl
an
tl
P
u
m
p
u
m
p
P
u
m
p
u
m
p
P
u
m
p
u
m
p
G
an
tl
an
tl
G
an
tl
an
tl
W
at
er
in
at
er
in
Ri
ns
e
ns
e
B
en
tal
en
tal
Lo
os
e
os
e
D
ef
au
lt
ti
m
e
ef
au
lt
ti
m
e
Basiccy
c
c
Display
Display
PCB Power & Heater
Pressure Switch
&
Heater Thermistor
Measure Hz impossible here
Just check cut-off.
Heater Thermistor
(44~53K , 25°C)
Pressure Switch
Common
Drain Pump
&
Door
&
Inlet alve
Door Switch
Measure R impossible here
Common
Motor
&
Hall Sensor
V ~ U / U ~ W / W ~ V
R : 8 ~11
V
U
W
Hb
(5~15k )
Ha
(5~15k )
Common
Drain Pump
(160~177 )
Pre. Valve
(3.5~4.5k )
Main Valve
(3.5~4.5k )
Heater
(24.7~28.0 )
PCB Power
PCB Layout
15
14
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART
BL
BL
BL
BL
YL
YL
YL
VL
OR
L
Y
L
Y
/
RD
YL
BL
/
RD
BL
/
WH
BL
/ WH
BL
/ WH
BL
BL
BL
BL
BL
GN
/YL
GN
/YL
GN
/YL
BL
SBL
VL
OR
BL
/
WH
BL
/ WH
BL
/ WH
SBL
BN
/ YL
BN
BN
BL
BN
YL
BK
RD
NA
NA
NA
NA
NA
WH
W
H
WH
WH
WH
RD
RD
RED
D
R
D
R
BK
B
K
BK
B
K
BK
BK
K
B
H
W
WH
/ BK
WH
/ BK
GY
/
WH
GY
/
WH
GY
RD
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
1
2
1
2
1
2
1
2
3
4
5
6
1
1
1
1
1
2
2
2
6
3
1
4
5
2
6
3
1
4
1
2
1
2
1
2
2
1
1 1
2
2 2
3
(S
)
(G
)
(S)
3
1
2
1
2
1
2
3
1
2
3
2
2 2
1
1
1
3
2
3
2
1
5
4
2
3
3
1
5
4
2
3
3
GND
Ha
Hb
1
3
2
2
1
3
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
3
1
2
3
1
1 1
2
3
1
2
3
1
NOISE FI
LTER
P
O
WER CORD
W
ASHIG HE
ATER
DRAIN PUMP
DOOR LOCK S/W
INLET
V
A
LVE
INLET
V
A
LVE
THERMIS
TOR
PRESSURE SENSOR
THERMIS
TOR
PRESSURE SENSOR
Motor
H O T
W
V
U
P R E
M A I N
P
R
E
M
A
I
N
3
4
4
5
2
2
2
3
3
3
3
3
4
4
5
4
5
6
5
6
6
Wiring Diagram
[Note]
RD : Red
RD : Red
YL : Yellow
BL : Blue
WH : White
GY : Gray
BK : Black
VL : Violet
OR : Orange
SBL : Sky Blue
NA : Natural
5
4
3
2
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