LG WM3070HVA Service Manual ▷ View online
34
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
Level
Unbalance Part
35
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?
1. When you press both
WASH/RINSE button and
SOIL LEVEL button
simultaneously, is the
value of the vibration
sensor 001? (Refer to 7~4)
SOIL LEVEL button
simultaneously, is the
value of the vibration
sensor 001? (Refer to 7~4)
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
2. When you press both
SPIN SPEED button and
SOIL LEVEL button
simultaneously, is the
valve of the vibration
sensor1 0000 or 5535?
SOIL LEVEL button
simultaneously, is the
valve of the vibration
sensor1 0000 or 5535?
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
36
DETERGENT DOES NOT FLOW IN
Refer to
NO WATER
SUPPLY.
NO WATER
SUPPLY.
Yes
Yes
No
Has detergent been put in
the correct compartment
of the dispenser?
the correct compartment
of the dispenser?
(1) Liquid chlorine Bleach Compartment
(2) Liquid fabric Softener Compartment
(3) Prewash Compartment
(4) Main Wash Compartment
Is the detergent caked or
hardened?
hardened?
Is water supplied?
Check the
wiring.
wiring.
No
Are receptacles correctly
connected to the terminals
of the INLET VALVE
ASSEMBLY?
connected to the terminals
of the INLET VALVE
ASSEMBLY?
Put the
detergent in
the correct
place.
detergent in
the correct
place.
Clean the
dispenser.
dispenser.
Yes
Yes
No
Pre wash
Main wash
: Detergent
Prewash
Hot water
Main wash
Steam
Bleach
(1)
(4)
(3)
(2)
37
LIQUID DETERGENT/SOFTENER/
BLEACH DOES NOT FLOW IN
ABNORMAL SOUND
Is water supplied?
Yes
No
Are the plugs correctly
connected to the terminals of
the INLET VALVE
ASSEMBLY?
connected to the terminals of
the INLET VALVE
ASSEMBLY?
Is the motor bolt loosened?
Is the liquid detergent/
softener/bleach cap clogged?
softener/bleach cap clogged?
Check the
wiring on the
dispenser.
wiring on the
dispenser.
Refer to
NO WATER
SUPPLY.
NO WATER
SUPPLY.
No
Is liquid detergent/softener/
bleach put in the correct
compartment of the drawer?
bleach put in the correct
compartment of the drawer?
Put it in the
correct
compartment.
correct
compartment.
Clean the cap
and
container.
and
container.
No
Yes
Yes
Yes
Secure the
bolt.
bolt.
Is there friction noise coming
from the motor?
from the motor?
Check hall
sensor.
Replace If
defective.
Then check
stator.
Replace if
necessary.
Check rotor
for broken
magnets.
Replace rotor
if necessary.
sensor.
Replace If
defective.
Then check
stator.
Replace if
necessary.
Check rotor
for broken
magnets.
Replace rotor
if necessary.
Yes
No
Yes
(1) Liquid chlorine Bleach Compartment
(2) Liquid fabric Softener Compartment
(3) Prewash Compartment
(4) Main Wash Compartment
Prewash
Hot water
Main wash
Steam
Bleach
(1)
(4)
(3)
(2)
Bleach cap
Softener
cap
cap
Liquid detergent cap
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