DOWNLOAD LG LSWF388HVS Service Manual ↓ Size: 9.33 MB | Pages: 67 in PDF or view online for FREE

Model
LSWF388HVS
Pages
67
Size
9.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
lswf388hvs.pdf
Date

LG LSWF388HVS Service Manual ▷ View online

34
8-5. TROUBLESHOOTING ELSE
NO POWER
1. Be careful of electric shock if disconnecting parts while troubleshooting.
2. First of all, check the connection of each electrical terminal with the wiring diagram.
3. If you replace the MAIN PWB ASSEMBLY, reinsert the connectors correctly.
CAUTION
Check the
fuse or reset
the circuit
breaker.
Yes
No
Is the current rating of
multi-outlet power strip
enough?
(Avoid connecting several
electric devices.)
Is the supplied voltage
120V AC?(+10%, -15%)
Alternate with
explanation.
Yes
Yes
No
Is the connector connected
to PCB/Noise filter
disconnected or
disassembled?
Reconnect
or repair
the connector.
No
Replace the
MAIN PWB
ASSEMBLY.
Yes
No
Is LED on while the power
is on?
Replace the
DISPLAY
PWB
ASSEMBLY.
Display PWB
Connecting connector
MAIN PWB~ Display PWB
No
Is five pin wire of
display PWB broken?
35
BUTTON DOESN’T WORK
Is the connector connected
to Main PWB / Display
PWB disconnected or
disassembled?
Reconnect or
Repair
the connector.
Yes
Is the display PCB broken?
(check the buzzer sound
and LED light while push the
button.)
Replace the
DISPLAY
PWB
ASSEMBLY.
Yes
Is the button of panel stuck?
Repair the
button.
Yes
No
No
36
VIBRATION & NOISE IN SPIN
Remove the
transit bolts
and Base
packing.
Yes
No
Is the washer installed on a
solidly constructed floor?
Have all the transit bolts
and base packing been
removed?
Move the
washer or
reinforce the
floor.
Check the
vibration
Sensor.
Yes
No
Check if the washer is
perfectly level as follows:
Check the leveling of the
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.
(Refer to section 7-2.)
When the machine is
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.
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.
Yes
Yes
Base Packing
Level
Unbalance Part
37
VIBRATION SENSOR CHECK
Check the
leveling of
washer,
transit bolts
and base
packing
Yes
No
No
No
No
Is the connector connected
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)
Reconnect or
repair the
connector
Replace the
vibration
sensor
Reconnect or
repair the
connector
Replace the
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?
Is each terminal open?
(Check the all terminal of
the vibration sensor’s
connector.
Is the connector connected
to MAIN PWB assembly
connected or assembled?
(BL2)
Is Electrical connection
correct?
(Refer to 9-10wiring diagram)
Replace the MAIN PWB
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.
Yes
Yes
Yes
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