DOWNLOAD LG WD-12NBW Service Manual ↓ Size: 6.68 MB | Pages: 39 in PDF or view online for FREE

Model
WD-12NBW
Pages
39
Size
6.68 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
wd-12nbw.pdf
Date

LG WD-12NBW Service Manual ▷ View online

12
6. OPERATION
POWER button
• Use this button to turn the power
On/Off.
CHILD LOCK
• Use this option to prevent unwanted use of the
washer. Press and hold Option andRinse button
for 3 seconds to lock/unlock control. 
• When Child lock is set, CHILD LOCK lights and
all buttons are disabled except the Power
button. You can lock the washer while it is
operating.
CYCLE
SELECTOR knob
• Rotate the Cycle selector
knobto select the cycle
designed for different
types of fabric and soil
levels.
START/PAUSE
button
• Use this button to Start/
Stop the washer.
STATUS INDICATOR
• These lights show which portion of
the cycle the washer is operating.
13
RINSE, SPIN and For
Manual
• Use these button to change
Rinse/Spin/Temp./Beeper
• When lamp is off, no selection has
been mode.
• Pre Wash and Soak available for
Cotton, Cotton-Eco and Synthetic.
EST. TIME REMAINING
• This display shows:
a) the estimated time remaining in the 
cycle when operating.
b) an error code when an error has
been detected.
Wash option Button
• Pre Wash:  Use this option for loads that need pretreatment.
It add 17 minutes prewash and drain.
• Time Saving: This option can be used to reduce the time 
of a wash program.
• Soak: Use this mode to wash normal clothes or thick and 
heavy clothes which are excessively dirty
• Bio: If you want to elimenate protein stains(milk, blood,
chocolate...), you may select Bio by pressing the 
option button.[You can select Bio when temperature is 
higher than 60
in Cotton, Cotton-Eco and Synthetic.]
1. Press the Rinse and Temp. buttons simultaneously.
2. Press the Power       button, while the above condition. Then buzzer will sound twice.
3. Press the Start/Pause       button repeatedly to cycle through the test modes.
7. TROUBLESHOOTING
7-1. BEFORE PERFORMING SERVICE
Be careful of electric shock when disconnecting parts while troubleshooting.
The voltage of each terminal is 220-240V AC and DC when the unit is plugged in.
7-2. QC TEST MODE.
The washer must be empty and the controls must be in the off state.
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
Press the Option and Tub Clean button simultaneously.
None 
1 time 
2 times 
3 times 
4 times 
5 times 
6 times 
7 times 
8 times 
9 times 
10 times 
Turns on all lamps and locks the door.
Tumble clockwise.
Low speed Spin.
High speed Spin.
Inlet valve for prewash turns on.
Inlet valve for main wash turns on.
Tumble counterclockwise.
Heater turns on for 3 sec.
Circulation pump turns on.
Drain pump turns on.
Power off and unlock the door.
rpm (40~50)
rpm (58~65)
rpm (100~120)
Water level frequency (25~65)
Water level frequency (25~65)
rpm (40~50)
Water temperature
Water level frequency (25~65)
Water level frequency (25~65)
Turn off all lamps.
The digits indicate the water level frequency ( x.1 kHz ).
So, for example a display indicating  241: a Water level frequency of 241 x.1 kHz
=  24.1 kHz
Number of times the
Start/Pausebutton is pressed
Check Point
Display Status
The washer must be empty and the controls must be in the off state.
14
15
7-4. ERROR DISPLAY
If you press the START/PAUSE button when an error is displayed, any error except 
will disappear
and the machine will go into the pause status.
In case of 
if the error is not resolved within 20 sec., or the in case of other errors,
if the error is not resolved within 4 min., power will be turned off automatically and the error code will
blink. But in the case of 
, power will not be turned off.
ERROR SYMPTOM
CAUSE
WATER INLET
ERROR
• Correct water level (246) is not reached within 8 minutes
after water is supplied or it does not reach the preset water
level within 25 minutes.
• The load is too small.
• The appliance is tilted.
• Laundry is gathered to one side.
• Non distributable things are put into the drum.
1
2
IMBALANCE
ERROR
• Not fully drained within 10 minutes.
3
DRAIN
ERROR
• Water is overflowing (water level frequency is over 213).
※ If               is displayed, the drain pump will operate to
drain the water automatically.
4
OVER FLOW
ERROR
• The SENSOR SWITCH ASSEMBLY is out of order.
5
PRESSURE
SENSOR 
ERROR
• Door not all the way closed.
• Loose electrical connections at Door switch and 
PWB Assembly.
• The DOOR SWITCH ASSEMBLY is out of order.
6
DOOR OPEN
ERROR
• The THERMISTOR is out order.
7
HEATING
ERROR
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