LG WD-90KFT 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
TH3
(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
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
* Water Supply : W·S * Intermittent Spin : I·S * Disentangle : D·T
* Basic Cycle
* Optional Cycle
* ~ Time for varies as the temperature or the amount of laundry.
* Pre-Setting Time : Water Supply - 120 sec.
Drain - 60 sec.
Wash
Rinse
Spin
W
·
S
Pre
Main
Washing
Drain
I
·
S
W
·
S
Rinse
Washing Staycooling
Heat
Wash
Drain
W
·
S
1
2
3
7
6
5
4
9
8
10
Normal (Hold)
Drain
I
·
S
11 12
1
W
·
S
Rinse
13 14
Drain
I
·
S
15 16
2
W
·
S
Rinse
17 18
Drain
I
·
S
19 20
W
·
S
Rinse
21 22
Drain
I
·
S
23 24
W
·
S
Rinse
25 26
Extra (Hold)
Drain
Spin
D·T
A
U
T
U
T
O
O
O
F
F
F
3
4
27 28 29
20
E
D
R
Y
R
Y
N
D
D
20
Coloreds
Heating
Delicate
Normal
Working
Time
(Hour:Minute)
About 1:25
120 MIN 60
MIN
120
300
60
120
60 60 300 120 360 60 300 120 360 60 300 120 360 60 300 120 360 60 600 120
20 20
C
Y
C
L
E
Y
C
L
E
S
T
E
P
T
E
P
C
O
U
R
S
E
Time
(SEC)
8
1
32
About 2:20
About 45
8
Wash+Dry
Wool
Blanket
Wash
Rinse
Rinse Hold
Wash
+ Rinse
20
About 45
About 59
About 4:37
About 1:05
About 28
15
Spin
Dry
About 28
About 3:45
About 10
Rinse
+ Spin
Wash
+Spin
About 1:16
About 52
About 37
10
30
15
32
1
~
~
1
32
1
32
Rapid
About 42
8
10
PROGRAM CHART
* Basic time is minute in washing chart
* The actual program time can be varied with the load amount,
water temperature or ambient temperature
* The actual program time can be varied with the load amount,
water temperature or 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 110V and DC while applying an electric current.
■ Voltage of each terminal in 110V and DC while applying an electric current.
7-2.QC TEST MODE.
① Pressing Rinse, and Spin button simultaneously.
② Power supply ON with pressing upper two button.Then buzzer sound twice.
③ Press the Start/Pause button as follows.
② Power supply ON with pressing upper two button.Then buzzer sound twice.
③ Press the Start/Pause button as follows.
[Press the Start/Pause button more 4 times until stop spinning]
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 [WATER TEMP] button.
■ Thermistor in dry duct : Press the [DRY] button.
■ Thermistor in condensing duct : Press the [SPIN] and [DRY] button simultaneously.
■ Thermistor in dry duct : Press the [DRY] button.
■ Thermistor in condensing duct : Press the [SPIN] and [DRY] button simultaneously.
The digits means water level frequency(10
-1
㎑
)
Pressing number of
［Start/Pause］button
Checking Point
Display Status
None
All lamps turn on
1 time
Clockwise spin(right)
Drum rpm(About 40~52)
2 times
Low speed Spin
Drum rpm(About 70~90)
3 times
High speed Spin
Drum rpm(About 90~110)
4 times
Inlet valve for pre-wash operation
Water level frequency(25~65)
5 times
Inlet valve for main-wash operation
Water level frequency(25~65)
6 times
Inlet valve for dry operation
Water level frequency(25~65)
7 times
Counterclockwise spin(left)
Drum rpm(About 40~52)
8 times
Heater is in operation for 3 sec.
Water temperature
9 times
Draining pump operation
Water level frequency
10 times
Dry operation for 6 minutes
Auto off operation after 6 minutes
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(2 level)within 4
minutes after water supplied or not reached to
the preset water level within 25 minutes.
• Not fully drained within 5 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
☞ 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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