LG WM3150HVC Service Manual ▷ View online
33
VIBRATION & NOISE IN SPIN
Remove the
transit bolts
and Base
packing.
transit bolts
and Base
packing.
Yes
No
Is the washer installed on a
solidly constructed floor?
solidly constructed floor?
Have all the transit bolts
and base packing been
removed?
and base packing been
removed?
Move the
washer or
reinforce the
floor.
washer or
reinforce the
floor.
Check the
vibration
Sensor.
vibration
Sensor.
Yes
No
Check if the washer is
perfectly level as follows:
perfectly level as follows:
Check the leveling of the
washer with a level and
check that the washer is
stable.
washer with a level and
check that the washer is
stable.
Put an unbalance part
(rubber) inside of drum
and start QC test mode and
run in high spin.
(rubber) inside of drum
and start QC test mode and
run in high spin.
(Refer to section 7-2.)
When the machine is
spinning in high speed,
verify that it is stable.
spinning in high speed,
verify that it is stable.
If you do not have the
unbalance part, put 4.5 to
6.5 lbs (2 to 3 kg) of
clothing. Once loaded,
press power, Rinse+Spin
and the start/pause button
in sequence.
When the machine is
spinning in high speed,
verify that it is stable.
unbalance part, put 4.5 to
6.5 lbs (2 to 3 kg) of
clothing. Once loaded,
press power, Rinse+Spin
and the start/pause button
in sequence.
When the machine is
spinning in high speed,
verify that it is stable.
If it is not stable, adjust feet
accordingly. After the
washer is level, tighten the
lock nuts up against of the
base of the washer. All lock
nuts must be tightened.
accordingly. After the
washer is level, tighten the
lock nuts up against of the
base of the washer. All lock
nuts must be tightened.
Yes
Yes
Base Packing
Unbalance Part
Tighten
Higher
Lower
Adjustable feet
Adjustable feet
Tighten
Level
34
VIBRATION SENSOR CHECK
Check the
leveling of
washer,
transit bolts
and base
packing
leveling of
washer,
transit bolts
and base
packing
Yes
No
No
No
No
Is the connector connected
to vibration sensor
connected or assembled?
to vibration sensor
connected or assembled?
When you check the sensor
error during LQC mode.
Is it displayed “bs2”?
error during LQC mode.
Is it displayed “bs2”?
(Refer to 7-2)
Reconnect or
repair the
connector
repair the
connector
Replace the
vibration
sensor
vibration
sensor
Reconnect or
repair the
connector
repair the
connector
Replace the
TRANS
CABLE
TRANS
CABLE
Yes
No
Is each terminal open?
(Check the all terminal of
the vibration sensor’s
connector.
(Check the all terminal of
the vibration sensor’s
connector.
Is the connector connected
to MAIN PWB assembly
connected or assembled?
(BL2)
to MAIN PWB assembly
connected or assembled?
(BL2)
Is Electrical connection
correct?
(Refer to 9-10wiring diagram)
correct?
(Refer to 9-10wiring diagram)
Replace the MAIN PWB
ASSEMBLY
ASSEMBLY
[Note]
Chances that the cause occurs from the
main controller are very little.
Sensing part of the circuit consists of
only resistors and capacitors.
Chances that the cause occurs from the
main controller are very little.
Sensing part of the circuit consists of
only resistors and capacitors.
Yes
Yes
Yes
35
DETERGENT DOES NOT FLOW IN
Refer to
NO WATER SUPPLY
NO WATER SUPPLY
Check the wiring.
Clean the dispenser.
Put the detergent in the
correct place.
correct place.
YES
YES
YES
YES
NO
NO
NO
Is water supplied?
Is the detergent caked or hardened?
Are receptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?
terminals of the INLET VALVE ASSEMBLY?
Has detergent been put in the correct
compartment of the dispenser?
compartment of the dispenser?
36
LIQUID DETERGENT/SOFTENER/BLEACH DOES NOT FLOW IN
ABNORMAL SOUND
Refer to
NO WATER SUPPLY
NO WATER SUPPLY
Check the wiring on the
dispenser.
dispenser.
Put it in the correct
compartment.
compartment.
Clean the cap and
Container.
Container.
Secure the bolt.
Check hall sensor.
Replace If defective.
Then check stator.
Replace if necessary.
Check rotor for broken
magnets.
Replace rotor if necessary.
Replace If defective.
Then check stator.
Replace if necessary.
Check rotor for broken
magnets.
Replace rotor if necessary.
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
Is water supplied?
Are the plugs correctly connected to the terminals of
the INLET VALVE ASSEMBLY?
the INLET VALVE ASSEMBLY?
Is liquid detergent/softener/bleach put in the correct
compartment of the drawer?
compartment of the drawer?
Is the liquid detergent/softener/bleach cap clogged?
Is the motor bolt loosened?
Is there friction noise coming from the motor?
Click on the first or last page to see other WM3150HVC service manuals if exist.