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Model
8144 BJ
Pages
36
Size
4.05 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
8144-bj.pdf
Date

LG 8144 / BJ Service Manual ▷ View online

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.
① Pressing Rinse and Steam Wash button simultaneously.
② Press the Power        button, while the above condition.
③ Press the Start/Pause button as follows. 
Check Point
Display Status
None
Turns on all lamps and locks the door.
1 time
Tumble clockwise.
rpm (42~50)
2 times
Low speed Spin.
rpm (55~65)
3 times
High speed Spin.
rpm (125~155)
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 steam turns on.
Water level frequency (25~65)
8 times
Inlet valve for bleach turns on.
Water level frequency (25~65)
9 times
Tumble counterclockwise.
rpm (42~50)
10 times
Heater turns on for 3 sec.
Water temperature
11 times
Circulation pump turns on.
Water level frequency (25~65)
12 times
Drain pump turns on.
Water level frequency (25~65)
13 times
Water level Sensor for Steam
Water level frequency of TSG(0~255)
14 times
Steam Heater turns on for 1.2 sec.
TSG temperature
15 times
Off
-
Number of times the
Start/Pause button is pressed
7-4.HOW TO KNOW THE WATER LEVEL FREQUENCY
Press the Temp. and Spin button simultaneously.
ex) 241 : Water level frequency = 241
× 10-1kHz
=24.1kHz
The digits means water level frequency (10
-1 
kHz) 
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 
d
e, d
e, 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 
d e, 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
• 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
• Water leaks
• The washer ecperienced a power failure
15
LOCKED
MOTOR
ERROR
POWER
FAILURE
16
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?
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
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