LG WD-12320RD Service Manual ▷ View online
12
6. WIRING DIAGRAM
/
PROGRAM CHART
MAIN PWB
NA
YL
YL
BL
BL
RD
WH
RD
RD
FUSE
DOOR LOCK S/W
DRAIN
MOTOR
U V W
BK
BK
BL
BN
GN
/
YL
GN
/
YL
VL
/
WH
WH
/
RD
BL
/
RD
YL
/
RD
BN
/
YL
WH
/
BK
GY
/
WH
YL
/
BK
YL
/
RD
BN
/
YL
S
K
Y
BK
/
WH
RD
/
WH
GN
/
YL
WH
WH
BK
BK
BL
BN
RD
P
C P
C
C
P
P
WASHING
HEATER
HEATER
POWER
CORD
DRY
HEATER
HEATER
THER-
MOSTAT
MOSTAT
INLET
VALVE
VALVE
Ha
Hb
GND
MOTOR
FAN MOTOR
PRESSURE
SENSOR
n
PIN CONNECTOR NUMBER
TERMINAL+HOUSING (#250)
EARTH TERMINAL
WIRE COLOR: BASE/LINE
(S)
(S)
(G)
THERMISTOR
THERMISTOR
(Dry Duct Dry H/T)
(Tub)
D
R
Y
R
Y
M
A
I
N
P
R
E
R
E
BK
WH BK YL
OR BL
BL RD YL
BL RD
RD
BK
YL BK
/
WH
BN GY PK
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1
2
3
4
5
6
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
1
1
1
2
3
1
2
3
1
2
3
4
1 4
1
1
2 3
2 3
2 3
4
1
4
1
2
3
2
3
4
5 6
1 2 3 4 5
1 2 3 4 5
1 2 3
1 2 3
1 2 3
1 2
1 2
1 2
1 2
1 2
3
DISPLAY
PWB
PWB
WH
NA
RD
RD
RD
SKY BL
RD
WH
WH
NA
WH
WH
WH
/RD
/RD
WH/RD
WH
WH
NA
VL
NA
NOISE
FILTER
1
2
1
2
S
T
E
P
1
2
3
7
6
5
4
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
20
E
N
D
N
D
A
U
T
O
O
F
F
20
60 (분)
(분)
60
12 0
18 0
60 18 0 12 0 18 0 60 24 0 12 0 18 0 60 18 0 12 0 18 0 60 18 0 12 0 18 0 60 48 0 18 0
20
20
8
12
42
About 2:17
About 1:33
About 46
About 1:09
About 58
About 1:18
About 46
About 28
About 10
About 30
About 1:14
About 50
About 37
8
12
39
39
39
About 58
8
8
8
8
1
40
About 2:26
39
12
42
12
42
12˚
12˚
42
42
12
27
분
CYCLE
Wash
Rinse
1
2
3
Spin
**Approx
Working
Time
(Minutes)
Extra & Stain(4~6)
Wash
Pre
W
¥
S
W
¥
S
W
¥
S
W
¥
S
W
¥
S
W
¥
S
I
¥
S
I
¥
S
I
¥
S
I
¥
S
D
¥
T
I
¥
S
Wash
Rinse
Rinse
Rinse
Rinse
Wash
Heat
Drain
Drain
Drain
Drain
Spin
Dry
Drain
Drain
Main
C
O
U
R
S
E
Cotton
Synthetic
Wool/Silk
Delicate
Duvet
Cotton-Eco
Quick 30
Hand Wash
Wash
Rinse
Spin
Dry
Wash+Rinse
Wash+Spin
Rinse+Spin
TIME
(SEC.)
(SEC.)
* Wash time is in minutes.
** The total working time will vary with the load size,
water temperature and ambient temperature.
** The total working time will vary with the load size,
water temperature and ambient temperature.
13
7. TROUBLE SHOOTING
7-1.BEFORE SVC CHECKING
Be careful of electric shock or disconnecting the parts while trouble shooting.
Voltage of each terminal in 220-240V~ and DC while applying an electric current.
7-2.QC TEST MODE.
Pressing Rinse, and Spin button simultaneously.
Press the Power button, while the above condition.
Press the Start/Pause button as follows.
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY
Press the Rinse and Spin button simultaneously.
ex) 241 : Water level frequency = 241
10-1
=24.1
7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION.
■ Thermistor in tub : Press the [Temp.] button.
■ Thermistor in dry duct : Press the [Dry] button.
■ Thermistor in condensing duct : Press the [Time Save] and [Spin] button simultaneously.
■ Thermistor in dry duct : Press the [Dry] button.
■ Thermistor in condensing duct : Press the [Time Save] and [Spin] button simultaneously.
The digits means water level frequency(10
-1
)
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 Dry Operation.
Water level frequency (25~65)
8 times
Tumble counterclockwise.
rpm (40~50)
9 times
Heater turns on for 3 sec.
Water temperature
10 times
Circulation pump turns on.
Water level frequency (25~65)
11 times
Drain pump turns on.
Water level frequency (25~65)
12 times
Dry Heater & Dry fan Operation
Dry Duct temperature.
13 times
Power off and unlock the door.
Turn off all lamps.
Number of times the
Start/Pause button is pressed
14
7-5.ERROR DISPLAY.
If you press the Start/Pause button in error condition, any error except ‘
’ will disappear and the
machine will change into pause status.
In case of
if the error is not resolved within 20 sec., and 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 case of
blinked. But in case of
, power will not be turned off.
ERROR
SYMPTOM CAUSE
1
2
3
4
5
6
7
• Not reached to the water level(246)within 8
minutes after water supplied or not reached to
the preset water level within 25 minutes.
• Not fully drained within 10 minutes.
• Water is over flowing(over 8 level).
※ If is displayed, drain pump operates to
drain water automatically.
• The sensor pressure switch is out of order.
• In case of operating the reservation function or
the other function with door opened. Close the
door, then the error display is resolved.
• The door switch is out of order.
• The appliance is tilted.
• Laundry is gatherd to one side.
• The THERMISTOR is out of order.
WATER INLET
ERROR
DRAIN ERROR
OVERFLOW
ERROR
SENSOR PRESSURE
S/W ERROR
DOOR OPEN
ERROR
IMBALANCE
ERROR
HEATING
ERROR
ERROR
SYMPTOM CAUSE
8
9
10
• MAIN PWB ASSEMBLY is out of order
Replace the MAIN PWB ASSEMBLY
• Winding in the STATOR ASSEMBLY is short-circuited.
Replace the STATOR ASSEMBLY
• “ ” is dispplayed during a high spin
Replace the LEAD WIRE ASSEMBLY (MOTOR)
• The connector in the LEAD WIRE ASSEMBLY is not connected to
the connnector of STATOR ASSEMBLY
Reconnect or repair the connector
• The hall sensor is out of order/defective.
Replace the STATOR ASSEMBLY
• The Dry Heater is out of order
Replace the Dry Heater
• The Connector of the Dry Heater is not connected properly to the
connector in the Main PWB ASSEMBLY
Reconnect or repair the connector
• The Dry fan motor is out of order
Replace the fan Motor.
CURRENT
ERROR
MOTOR
ERROR
DRY
HEATOR
ERROR
15
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