LG WM2140CW Service Manual ▷ View online
13
6. WIRING DIAGRAM/PROGRAM CHART
■
14
!" # #
$" !
%& #
'!( " "
! )*
! #! ! !#+ #!
BULKY/
LARGE
,
PERM.
PRESS
DELICATES
Normal
Extra Rinse
COTTON/
NORMAL
NORMAL
HAND WASH/
WOOL
SPEED
WASH
DRAIN+
SPIN
15
7-1. BEFORE PERFORMING SERVICE
■
Be careful of electric shock when disconnecting parts while troubleshooting.
■
The voltage of each terminal is 120 V 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.
1. Press the SPIN SPEED and SOIL LEVEL buttons simultaneously.
2. Press the Power
1. Press the SPIN SPEED and SOIL LEVEL buttons simultaneously.
2. Press the Power
button, while the above condition. Then buzzer will sound twice.
3. Press the Start/Pause
buttonrepeatedly to cycle through the test modes.
4.
Alternate blinking of
,
and
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
Press the Delay and Signal button simultaneously.
So, for example a display indicating 241: a Water level frequency of 241 x.1 kHz
= 24.1 kHz
The digits indicate the water level frequency ( x.1 kHz ).
s
u
t
a
t
S
y
a
l
p
s
i
D
t
n
i
o
P
k
c
e
h
C
None
Turns on all lamps and locks the door.
1 time
Tumble clockwise.
rpm (40~50)
m
p
r
.
n
i
p
S
d
e
e
p
s
w
o
L
s
e
m
it
2
m
p
r
.
n
i
p
S
d
e
e
p
s
h
g
i
H
s
e
m
it
3
4 times
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 bleach turns on.
Water level frequency (25~65)
8 times
Tumble counterclockwise.
rpm (40~50)
9 times
Water temperature (Thermistor)
Water temperature [°C]
10 times
Drainpump turns on.
Water level frequency (25~65)
11 times
Power off and unlock the door.
Turnoff all lamps.
Number of times the
Start/Pause buttonis pressed
16
7-4. ERROR DISPLAY
If you press the START/PAUSE button when an error is displayed, any error except
d
ewill
disappear and the machine will go into the pause status.
In case of
d
e,
d
e,
d
eif 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
blink. But in the case of
d
e, 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.
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.
• 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
• 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
THERMISTOR
ERROR
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