DOWNLOAD LG 41025 Service Manual ↓ Size: 7.42 MB | Pages: 62 in PDF or view online for FREE

Is                 displayed?

Check the connectors at the
main PCB, the heater and the
thermistor.  Are the
connectors loose or
disconnected?

Reconnect or
repair
the connector.

Check the resistance of the
heater.  Is the resistance
between 121 and 181 ? 

(Refer to 9-6 Heater
assembly.)

Proceed to next step at right

Replace the
HEATER
ASSEMBLY.

Check the thermistor
resistance.  Is the resistance
correct according to the
chart?

(Refer to 9-7 thermistor
assembly.)

Replace the
THERMISTOR
ASSEMBLY.

Are the thermistor terminals
dry and free of corrosion?

Replace the
THERMISTOR
ASSEMBLY.

Is the connector connected to
thermistor disconnected or
disassembled?

Reconnect or
repair
the connector.

Is                 displayed?

Check the connectors at the
main PCB and the main
motor.  Are the connectors
loose or disconnected?
Main PCB connectors RD3
and NA4
Motor connectors to stator and
hall sensor

Reconnect
the connector.
(connector /
wire / motor )

Replace
the ROTOR.

Is rotor magnet cracked?

Magnet

Replace
the STATOR.

Check the resistance of the
stator winding from the main
PCB connector RD3.  Is the
resistance between each
pair or wires between 5  and
15 ? (Measure pins 1-2, 1-3
and 2-3.) 

Replace
the Hall
sensor.

Is hall sensor out of
order? 

(Refer to 9-3

Stator assembly/Hall
sensor.)

Replace the
MAIN PWB
ASSEMBLY.

Check the IPM in the
controller.

Is                 displayed?

Check the connectors at the
main PCB and the door
switch.  Are the connectors
loose or disconnected?

Reconnect or
repair
the connector

Can you hear the door latch
attempting to lock the door
at the beginning of the cycle
or diagnostic mode?

Is the spring in the door
latch hook on the door
strong and tight?

Replace the
PCB
ASSEMBLY.

Replace gasket
or hinge.
Remove foreign
objects.

If tested off the stator using
the diagram above ohm
check the resistors from pin
5 to pin 1 & pin 2. Does
either test show an open
(infinity) the hall sensor?
(You should measure
approximately 10,000 ohms
from pin 5 to pin 1 and
10,000 ohms from pin 5 to
pin) 

Replace the
DOOR
SWITCH
ASSEMBLY.

Is the door closing properly?
Is the gasket damaged and
interfering with the door or
latch?  Are there foreign
objects caught in the door?
Is the hinge damaged? 

Prceed to next step at right

Replace
Door
Assembly

[Note] Environmental check list
1) Removal of transportation-based fixed bolt.
2) Confirmation on the material to see if it is capable

of handling two different types of blanket materials.

Is                 displayed?

Does the laundry lean
toward one side, not evenly
put in the DRUM assembly?

Put laundry
evenly
In the DRUM
assembly

Is the washing machine
installed at an angle?

Adjust the
height of
washing
machine
to be kept
horizontally

Is                 displayed?

While a cycle is running,
press the WASH/RINSE and
DELAY START buttons
together to display the water
level.  Is the water level
>213? 

(Refer to 7-3)

Check the AIR
CHAMBER
and the tube
(clogged).

Unplug the washer.  Does
the water valve remain on
when the power is removed
from the washer?

Replace the
INLET VALVE ASSEMBLY

If the water
valve is
energized as
soon as the
washer is
plugged in or
when the power
button is
pressed, replace
the main PCB.