LG WD-10121TD Service Manual ▷ View online
13
7-1.BEFORE PERFORMING SERVICE
■
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.
①
①
Press Wash and Spin buttons simultaneously.
②
②
Press Power with above two buttons pressed and then buzzer will sound.
③
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 button and Spin button simultaneously.
ex) 241 : Water level frequency = 241
×
10-1kHz
= 24.1kHz
7. TROUBLESHOOTING
The digits means water level frequency (10
-1
kHz)
Pressing number of
［
START/PAUSE
］
button
Checking Point
Display Status
None
All lamps turn on
1 time
Clockwise spin (right)
Motor rpm (About 47)
2 times
Low speed Spin
Motor rpm (About 590~650)
3 times
High speed Spin
Motor rpm (About 1160~1200) : WD-10121(6)TD / WD-12121(6)TD
Motor rpm (About 1360~1400) : WD-14121(6)TD
4 times
Inlet valve for pre-wash operation
Water level frequency (225~265)
5 times
Inlet valve for main-wash operation
Water level frequency (225~265)
Hot inlet valve in case of hot water fill
6 times
Inlet valve for main-wash operation
Water level frequency (225~265)
7 times
Counterclockwise spin (left)
Motor rpm (About 47)
8 times
A Heater is in operation for 3 sec.
Water Temperature
9 times
Draining pump operation
Water level frequency
10 times
Auto off operation
14
If you press the [Start/Pause] button when an error in displayed, any error except S/W ERROR will
disappear and the machine will change into pause status.
In case of
d
e, d
e, d
e,
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
blinked. But in the case of
d
e
, power will not be turned off.
7-4.ERROR DISPLAY.
ERROR SYMPTOM
C
CA
AU
US
SE
E
1
WATER INLET
ERROR
2
IMBALANCE
The appliance is tilted.
ERROR
Laundry is gathered to one side.
Non distributable things are put into the drum.
Non distributable things are put into the drum.
3
DRAIN ERROR
Water has not drained enough within 8 min.
4
OVERFLOW
Water is automatically being pumped out because too much
ERROR
water is in the tub.
5
SENSOR PRESSURE
The sensor pressure switch is out of order.
S/W ERROR
6
DOOR OPEN
The
~
Start/Pause
₩
button is pressed with the door open.
ERROR
The door switch is out of order.
7
HEATING
The thermistor is out of order.
ERROR
8
CURRENT
ERROR
PWB ASSEMBLY (Main) is out of order
Replace the PWB ASSEMBLY (Main)
Winding in the MOTOR is short-circuited.
Replace the MOTOR
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
9
The electric contact between the connectors
~
3-pin, male, white in
the wire harness and 6-pin, female, white in the PWB ASSEMBLY
(Main)
(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.
(Main) is cut (open circuited).
The hall sensor is out of order/defective.
Replace the PWB ASSEMBLY (Main)
LOCK
ERROR
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.
reached to the normal level within 25 min.
15
8-1.DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION
8. ERROR DIAGNOSIS AND CHECK LIST
SYMPTOM
GUIDE FOR SERVICE CALL
NO POWER
Water inlet trouble
YES
YES
YES
NO
NO
YES
NO
NO
Is the power plug connected firmly to
220-240V~ outlet?
Power failure? or Breaker opened?
Is the outlet controlled by a switch.
Visit to check
Is displayed?
Is the tap opened?
Is the tap frozen?
Is the water supply shut-off?
Is filter in the inlet valve
clogged with foreign material?
Visit to check
Clean the filter of
inlet valve
inlet valve
16
SYMPTOM
GUIDE FOR SERVICE CALL
°
DOOR OPEN ERROR
Refer to
7-4 ERROR DISPLAY
7-4 ERROR DISPLAY
°
Drain Trouble
NO
YES
YES
NO
NO
YES
Did you press the Start/Pause button when
the door is open?
Visit to check
Check if the door switch is O.K
Is displayed?
Is the debris filter clogged with foreign
material such as pins, coins, etc.?
Is the drain hose frozen with water, kinked, or
crushed?
Visit to check
Close the door
Clean up
the filter.
the filter.
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