LG WF-T857 Service Manual page 50

13) Vibration, Noise or Unbalance Error happens during spin.
Where, what & how to check?
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.
It is very important to find out what kinds of noise & where comes from to settle
noise during spin and accumulately service experiance.
Result of Check Possible Cause How to repair & settle
Not leveled. Defect of
installation
Laundry is
unbalanced.
The pulsator Defect of the
rotates initially
clutch
then the inner tub
rotates.
The lever is Defect of the
safety switch
bented
Defect of the
Hit
damper
50
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)