LG WD-90KFP 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
* 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
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
S
T
E
P
C
O
U
R
S
E
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.
7-2.QC TEST MODE.
Pressing Rinse, and Spin button simultaneously.
Power supply ON with pressing upper two button.Then buzzer sound twice.
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.
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
• The Dry fan motor is out of order
Replace the fan Motor.
CURRENT
ERROR
MOTOR
ERROR
DRY
HEATOR
ERROR
15
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