DOWNLOAD LG 41472 Service Manual ↓ Size: 10.52 MB | Pages: 60 in PDF or view online for FREE

Model
41472
Pages
60
Size
10.52 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
41472.pdf
Date

LG 41472 Service Manual ▷ View online

32
8-5. TROUBLE SHOOTING 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
No
No
Check the connectors at the
main PCB and the line filter.
Are the connectors loose or
disconnected? 
Reconnect
or repair
the connector
Yes
Replace the
MAIN PWB
ASSEMBLY
Main LED
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 three pin wire of
display PWB broken?
33
BUTTON DOESN’T WORK
Check the connectors at the
main PCB and the line filter.
Are the connectors loose or
disconnected? 
Reconnect or
Repair
the connector
Yes
Check the connectors
between the main PCB and
the display PCB.  Are the
connectors loose or
disconnected?
Replace the main PCB.
Replace the
main PCB.
Yes
No
No
34
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
Unbalance Part
35
DETERGENT DOES NOT FLOW IN
Refer to 
NO WATER SUPPLY
Check the wiring.
Clean the dispenser.
Put the detergent in the
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?
Has detergent been put in the correct
compartment of the dispenser?
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