LG WF-G13KTC Service Manual ▷ View online
45
6) Pulsator doesn’t rotate normally.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
4. Pulsator weakly rotates.
1) Check voltage at the power outlet
where the washer is plugged into.
2) Check capacitance of the
capacitor.
Less than 85%
of rating.
of rating.
Indicating
needle rises and
immediately
indicates
needle rises and
immediately
indicates
The needle is
stopped after it
is raised.
stopped after it
is raised.
The needle
doesn’t move.
doesn’t move.
Lower voltage.
Capacitor is
normal.
normal.
Lack of
capacitance of the
capacitor.
capacitance of the
capacitor.
Capacitor is fully
discharged.
discharged.
Explain the causes and a
transfomer should be
used if necessary.
transfomer should be
used if necessary.
Change the capacitor.
Change the capacitor.
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)
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.
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.
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.
46
7) Water does not drain.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
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.
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.
Blocked.
Blocked.
Resistance is
normal.
normal.
Blocked hose.
Drain motor coil is
open.
open.
Contact defect in
connection parts
or defect of the
controller.
connection parts
or defect of the
controller.
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.)
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.
47
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)
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.
9) Drain error happens while water drains normally.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Ball Pressure Sensor
(Pressure Switch)
(Pressure Switch)
1. Check generation frequency of the
Ball Pressure Sensor
(Pressure Switch) without water.
(Pressure Switch) without water.
Less than
26.3 kHz
26.3 kHz
26.3~27.1 kHz
Defect of the
Ball Pressure
Sensor(Pressure
Switch).
Ball Pressure
Sensor(Pressure
Switch).
Defect of the
controller.
controller.
Change the Ball
Pressure Sensor
(Pressure Swtich)
Pressure Sensor
(Pressure Swtich)
Change the controller.
48
10) Spin extraction is not proceeded.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Motor
1. In the case that the wash motor does not
spin during spin extraction;
1) Check there is motor working
sound,or
2) If there is no motor-working
sound;
Check frequency of the
Ball Pressure Sensor (Pressure
Switch), under no load, or
Switch), under no load, or
Check contact defect of the safety
switch, defect of connection parts
and whether the lid is open if door
error is displayed.
switch, defect of connection parts
and whether the lid is open if door
error is displayed.
Is placed the magnetic in Lid-B.
Check resistance of the motor.
Drain Motor/Clutch
1. In the case the motor rotates but the
inner tub does not rotates;
1) Check resistance of the drain
motor if the drain motor doesn’t
work,or
2) Check gap between the PV link
and the brake lever if the inner
tub does not rotates while the
tub does not rotates while the
drain motor works.
There is motor
working sound.
working sound.
Less than
26.3
The lid is open
Defect of
connection part.
connection part.
The lid is open.
Defect of magnetic in
LID-B
LID-B
Contact defect of
the Ball Pressure
Sensor(Safety
Switch)
the Ball Pressure
Sensor(Safety
Switch)
Resistance is
normal
normal
The clearance is
less than 2.0mmor
more then 3.5mm
less than 2.0mmor
more then 3.5mm
The gap is normal
(2.0~3.5mm)
(2.0~3.5mm)
Defect of the
capacitor or
Mechanically
capacitor or
Mechanically
locked.
Defect of the
Ball Pressure
Sensor (Pressure
Switch).
Sensor (Pressure
Switch).
Mistake in use.
Mistake in use.
Coil is open.
Coil is open.
Defect of
connection part or
defect of the
controller.
Defect of
connection part or
defect of the
controller.
Assembling defect
of the drain motor or
the clutch
of the drain motor or
the clutch
Defect of the clutch.
Change the capacitor
after checking defect of
capacitor.
check whether the
after checking defect of
capacitor.
check whether the
washing clutch or the
washing tub is blocked
if the motor rotates after
removing the V-belt.
removing the V-belt.
Check whether the
motor is locked if the
motor does not rotates
even though the V-belt
being removed.
motor is locked if the
motor does not rotates
even though the V-belt
being removed.
Change the Ball Pressure
Sensor(Pressure Switch).
Sensor(Pressure Switch).
Explain “The lid is close
during operation”
during operation”
Reconnect the conncetors.
Explain“The lid is close
during operation”
during operation”
Change the Lid-B
Change the Ball Pressure
Sensor(Safety Switch).
Sensor(Safety Switch).
Change the motor.
Change the drain motor.
Change the controller after
checking connection parts.
checking connection parts.
Reassemble the drain
motor or the clutch to
keep the clearance.
motor or the clutch to
keep the clearance.
Change the clutch.
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