LG WT-R1233TH Service Manual ▷ View online
52
6) Display “LE” message and doesn’t work
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
1. In initial state display “LE” message.
1) Measure voltage of hall sensor
asm.
2) Check resistance of the motor.
Gray-White
DC 15V
DC 15V
OV
Gray-Red
-Blue
DC 12V
OV
Normal
Resistance
Resistance
No defect
Poor
No defect
Poor
Motor coil is
open.
open.
Contact defect of
the leak.
the leak.
Change the PCB Asm
Change the PCB Asm
Change the motor
Remove the cause
Brown
Hall sensor
assembly
assembly
DC 15V
In PCB assembly
Yellow (Ground)
Blue
Red
53
7) Water does not drain.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Pump
1. Check whether there is drain pump
working sound.
2. Check resistance between terminals
if there is no working sound of the
drain pump.
drain pump.
3. Check connection parts of the leads
if there is no working sound and its
resistance is normal.
resistance is normal.
Drain Hose
1. Check whether the drain hose is put
in a narrow space and kinked.
2. Check whether the internal drain
rubber asm is bent.(For Non-pump
model)
model)
3. Check whether the end of the drain
hose submerged into water or
higher than required.
higher than required.
(For non-pump model)
4. Check whether the drain hose is
blocked by foreign objects. It may
happen in case of the hose is a little
kinked.
happen in case of the hose is a little
kinked.
PV Case
(for Non-Pump Model only)
(for Non-Pump Model only)
1. Check whether the PV asm is
blocked by foreign objects.
There is pump
working sound.
working sound.
Defect in
connection part.
connection part.
Connection part
has no defects.
has no defects.
Kinked.
Bent.
Submerged or
higher than
required.
higher than
required.
Blocked.
Blocked.
Drain pump is
blocked by foreign
objects.
blocked by foreign
objects.
It’s coil is open.
Defect in
connection part.
connection part.
Defect of the
controller.
controller.
Defect of
installation.
installation.
Defect of the drain
rubber asm.
rubber asm.
Defect of
installation.
installation.
Blocked hose.
Disassemble the drain
pump cap and remove
the foreign objects in the
pump casing.
pump cap and remove
the foreign objects in the
pump casing.
Change the drain pump.
Repair defected
connection.
connection.
Change the controller.
Reinstall so that it should
not be kinked.
not be kinked.
Change the drain rubber
asm.
asm.
Re-install so that it can’t
be submerged or not
higher than required.
be submerged or not
higher than required.
Remove the objects and
reinstall so that it can’t be
kinked.
reinstall so that it can’t be
kinked.
Separate the drain motor
from the PV link,
disassemble PV cover
and then remove the
foreign objects within
PV case.
from the PV link,
disassemble PV cover
and then remove the
foreign objects within
PV case.
Check the washer works
normally after repair
and reassembling them.
normally after repair
and reassembling them.
(PV link & drain motor
lever should be
assembled accuratel.)
54
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Motor
(For Non-Pump Model only)
(For Non-Pump Model only)
1. Check resistance of the drain
motor if it can not pull the PV link.
Resistance is
normal.
normal.
Drain motor coil is
open.
open.
Contact defect in
connection parts
or defect of the
controller.
connection parts
or defect of the
controller.
Change the drain motor
Check the washer
works normally after
reassembling.
(PV link & drain motor
reassembling.
(PV link & drain motor
lever should be
assembled accurately.)
assembled accurately.)
Change the controller if
there is no defects in the
connection parts.
there is no defects in the
connection parts.
8) Water drains though it is not the time of drain.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Motor
(for Non-Pump Model only)
(for Non-Pump Model only)
1. Check whether the drain motor is
normally returned after turning
power off.
(It is considered normal if the lever
of the drain motor is fully pulled out
by the PV spring)
power off.
(It is considered normal if the lever
of the drain motor is fully pulled out
by the PV spring)
PV Case
1. If water drains though the drain
motor is normally returned, check
whether PV asm is blocked by
foreign objects or the bellows in
the PV asm is deformed.
whether PV asm is blocked by
foreign objects or the bellows in
the PV asm is deformed.
Controller
1. Check whether the drain motor or
the drain pump works immediately
after power is turned on.
after power is turned on.
Blocked.
Blocked.
Bellows
deformed.
deformed.
Works.
Defect of the drain
motor.
motor.
Defect of PV
Bellows.
Bellows.
Defect of the
controller(Triac
defect)
controller(Triac
defect)
Drain Hose
1. Check whether the drain hose is
installed properly so that the
discharge hight is about
0.9~1.2m from the floor.
discharge hight is about
0.9~1.2m from the floor.
The discharge
height is lower
than
recommendation.
height is lower
than
recommendation.
Wrong installation
of the drain hose.
of the drain hose.
Put the outlet of drain
hose between 0.9m and
1.2m
hose between 0.9m and
1.2m
Change the drain motor.
Remove the objects in
the PV asm.
the PV asm.
Change the PV bellows.
(The bellows may swell
up if it contact petroleum
or petrochemical
substance because it is
made of rubber)
(The bellows may swell
up if it contact petroleum
or petrochemical
substance because it is
made of rubber)
Change the controller.
55
10) Spining is going on even though the lid is open.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Lid Switch
1. Check resistance between both
terminals of the lid switch with
the lid open.
the lid open.
0~9
Contact points of
the lid switch is
welded.
the lid switch is
welded.
Defect of the
controller.
controller.
Change the lead wire
assembly.
assembly.
Change the controller.
11) Vibration, Noise or Unbalance Error happens during spin.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Using conditions such as
installation etc.
installation etc.
1. Check whether the washer is
leveled. (Check clearance with out
tub and out case the left gap is the
same as the right and the rear gap is
1.5~2 time bigger than the front gap,
same as the right and the rear gap is
1.5~2 time bigger than the front gap,
between the cabinet and the wash
bowl, when it is leveled.)
bowl, when it is leveled.)
2. Check whether laundry in the wash
bowl is out of balance that can
cause severe vibration & noise.
cause severe vibration & noise.
3. Check whether the puisator doesn’t
rotate during spin.(To check that,
remove the front lid and than run the
spin only cycle.)
remove the front lid and than run the
spin only cycle.)
Not leveled.
Laundry is
unbalanced.
The pulsator
rotates initially
then the inner tub
rotates.
rotates initially
then the inner tub
rotates.
Defect of
installation
installation
Defect of the
clutch
Level the washer.
Explain that it is not out
of order and it may
happen when big & long
laundry is washed.
of order and it may
happen when big & long
laundry is washed.
Change the clutch
spring-B or the clutch
asm.
spring-B or the clutch
asm.
9) Drain error happens while water drains normally.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Pressure Switch
1. Check generation frequency of the
pressure switch without water.
Less than
26.3 kHz
26.3 kHz
26.3~27.1 kHz
Defect of the
pressure switch.
pressure switch.
Defect of the
controller.
Change the pressure
switch.
switch.
Change the controller.
Click on the first or last page to see other WT-R1233TH service manuals if exist.