LG WF-T6017PC / WF-T7017TC Service Manual ▷ View online
53
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
1. Check generation frequency of the
Ball Pressure Sensor without water.
Less than
26.3 kHz
26.3 kHz
26.3~27.1 kHz
Defect of the
Ball Pressure
Sensor.
Ball Pressure
Sensor.
Defect of the
controller.
Change the Ball
Pressure Sensor
Pressure Sensor
Change the controller.
54
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, under
no load, or
Is placed the magnetic in
Lid-B.
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
work,or
2) Check gap between the PV link
and the brake lever if the inner
tub does not rotates while the
drain motor works.
tub does not rotates while the
drain motor works.
There is motor
working sound.
working sound.
Less than
26.3
26.3
The lid is open.
Defect of magnetic in
LID-B
LID-B
Contact defect
of the Ball
Pressure Sensor
of the Ball
Pressure Sensor
Resistance is
normal
normal
The clearance is
less than 2.0mm
or more then
3.5mm
less than 2.0mm
or more then
3.5mm
The gap is
normal .
(2.0~3.5mm)
normal .
(2.0~3.5mm)
Defect of the
capacitor or
Mechanically
locked.
capacitor or
Mechanically
locked.
Defect of the
Ball Pressure
Sensor.
Ball Pressure
Sensor.
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.
clutch.
Change the capacitor
after checking defect of
capacitor.
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.
washing clutch or the
washing tub is blocked
if the motor rotates after
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 Sensor.
Explain” The lid is close
during operation”
during operation”
Change the Lid-B
Change the Ball
Pressure Sensor.
Pressure Sensor.
Change the motor.
Change the drain motor.
Change the controller
after checking
connection parts.
after 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.
55
11) Spining is going on even though the lid is open.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Ball Pressure Sensor
1. Is placed the magnetic on the wash?
Yes
No
Reed S/W is short
by magnetic on
the washer.
by magnetic on
the washer.
Reed Switch.
Keep magnet away from
the washer.
the washer.
Change the controller.
12) Spin basket doesn’t reach to full speed(normal rpm)
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Main voltage
1. Check voltage at the power outlet
where the washer is plugged into.
Starting Capacitor
1. Check the capacitance of the
starting capacitor.
Clutch Assembling
1. Check the clearance between the
PV link and the brake lever and
clearance between the clutch lever
and the adjustment bolt.
clearance between the clutch lever
and the adjustment bolt.
Blocked by foreign objects
1. Check whether the PV asm, the
drain pump & the drain hose are
blocked by foreign objects so that it
makes water-splashing noise in the
tub.
blocked by foreign objects so that it
makes water-splashing noise in the
tub.
Less than
85% of rating
85% of rating
Lack of
capacitance
capacitance
The clearance is
less than 2.0mm
or more than 3.5mm
less than 2.0mm
or more than 3.5mm
Bolt clearance is
out of range
out of range
Tool low voltage
Defect of
capacitor
capacitor
Defect of the
clutch
clutch
Explain the cause and
recommend using a
transfomerformer if
necessary.
recommend using a
transfomerformer if
necessary.
Change the capacitor
Adjust PV lever bolt and
paint it red.
Reassemble the drain
motor or the clutch.
paint it red.
Reassemble the drain
motor or the clutch.
Adjust the bolt
clearance.
clearance.
Remove the foreign
objects.
objects.
56
13) 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 pulsator 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.)
Damper
1. Check whether the outer tub cover
hit the top cover without load
during spin.
during spin.
Not leveled.
Laundry is
unbalanced.
The pulsator
rotates initially
then the inner tub
rotates.
rotates initially
then the inner tub
rotates.
Hit
Defect of
installation
installation
Defect of the
clutch
Defect of the
damper
damper
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.
Change four dampers
simultaneously.
(In assembling, check
the position to damper
asm)
simultaneously.
(In assembling, check
the position to damper
asm)
It is very important to find out what kinds of noise & where comes from to settle
noise during spin and accumulately service experiance.
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