DOWNLOAD LG WFT65A37DPT Service Manual ↓ Size: 10.27 MB | Pages: 54 in PDF or view online for FREE

Model
WFT65A37DPT
Pages
54
Size
10.27 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
wft65a37dpt.pdf
Date

LG WFT65A37DPT Service Manual ▷ View online

44
10) Spin extraction is not pr oceeded.
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
Check contact defect of the safety
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 
drain motor works.
There is motor
working sound.
Less than
26.3
The lid is open
Defect of
connection part.
The lid is open.
Defect of magnetic in
LID-B 
Contact defect of
the Ball Pressure
Sensor(Safety
Switch)
Resistance is 
normal
The clearance is
less than 2.0mmor
more then 3.5mm
The gap is normal
(2.0~3.5mm)
Defect of the 
capacitor or 
Mechanically 
locked.
Defect of the 
Ball Pressure
Sensor(Pressure
Switch).
Mistake in use.
Mistake in use.
Coil is open.
Coil is open.
Defect of 
connection part or
defect of the
controller.
Assembling defect
of the drain motor or
the clutch
Defect of the clutch. 
Change the 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.
Check whether the 
motor is locked  if the 
motor does not rotates 
even though the V-belt 
being removed.
Change the Ball Pressure
Sensor(Pressure Switch).
Explain “The lid is close
during operation”
Reconnect the conncetors.
Explain“The lid is close
during operation”
Change the Lid-B
Change the Ball Pressure
Sensor(Safety Switch).
Change the motor.
Change the drain motor.
Change the controller  after
checking connection parts.
Reassemble the drain
motor or the clutch to
keep the clearance.
Change the clutch. 
45
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
Safety Switch
1. Check  resistance  between  both
terminals of the safety switch with
the lid open.
Ball Pressure Sensor
1. Is placed the magnetic on the wash?
0~9.
8.
Yes
No
Contact points of
the safety switch
are welded.
Defect of the
controller. 
Reed S/W is short
by magnetic on
the washer.
Reed Switch.
Change  the  Safety
Switch
Change the controller
Keep magnet away from
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.
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.
Less than 
85% of rating
Lack of 
capacitance
The clearance is
less than 2.0mm
or more than 3.5mm
Bolt clearance is
out of range 
1.9¡ 0.1mm
Tool low voltage
Defect of 
capacitor
Defect of the 
clutch
Explain the cause and
recommend using a
transfomerformer if
necessary.
Change the capacitor
Adjust PV lever bolt and
paint it red.
Reassemble the  drain
motor or the clutch.
Adjust the bolt 
clearance.
Remove the foreign 
objects.
46
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.
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, 
between the cabinet and the wash 
bowl, when it is leveled.)
2. Check whether laundry in the wash 
bowl is out of balance that can 
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.)
Safety Switch
1. Check whether the lever of the
safety switch touchs the outer tub if
touching noise happens.
Damper
1. Check whether the outer tub cover 
hit the top cover without load
during spin. 
Not leveled.
Laundry is 
unbalanced.
The pulsator 
rotates initially 
then the inner tub
rotates.
The lever is
bented
Hit
Defect of 
installation
Defect of the 
clutch
Defect of the
safety switch
Defect of the 
damper
Level the washer.
Explain that it is not out
of order and it may
happen when big & long
laundry is washed.
Change the clutch 
spring-B or the clutch 
asm.
Change the safety
switch.
Don’t repair and reuse it
because it creates
another problem if it is
wrongly repaired.
Change four dampers
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.
47
14)  Power is automatically tur ned off during operation or immediately
turning on the power switch.
Where, what & how to check?
Result of Check Possible Cause How to repair & settle
Main voltage
1. It is mostly caused by noise from
mains or transfomerient power cut.
Auto Off switch or
Controller
1.Check whether power is
automatically turned off when
turning on the auto off switch after 
unplugging the power cord from the 
outlet
2. It would be defect of the controller if 
power is automatically turned off 
immediately when turning on the 
power switch even though there is 
no defects in the auto off switch.
Automatically
turned off
Defect in main.
Mechanical  defect
of the auto off 
switch.
Explain the cause. 
(It happens specially 
when a high frequency 
equipment is a used 
around the washer or in 
the case voltage 
fluctuation is big)
Change the auto off
switch.
Change the controller.
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