LG LSWF388HVS Service Manual ▷ View online
30
LOCKED MOTOR ERROR
Check the connectors below.
Is the connector disconnected
or disassembled?
(motor hall sensor connector,
motor drive connector.)
- part of main PWB
Is the connector disconnected
or disassembled?
(motor hall sensor connector,
motor drive connector.)
- part of main PWB
assembly (NA1, RD4)
Reconnect
the connector.
(connector /
wire / motor )
the connector.
(connector /
wire / motor )
Replace
the ROTOR.
the ROTOR.
Yes
Yes
Motor Drive
Is rotor magnet cracked?
Hall sensor
Motor Drive Hall Sensor
- part of wire
- part of motor
Motor
Yes
No
Yes
Yes
Magnet
Replace
the STATOR.
the STATOR.
Is the resistance values
in the range of 5 to 15
in the range of 5 to 15
Ω?
(U-V, V-W, W-V
:U=1, V=2, W=3)
- After pull out the RD4
:U=1, V=2, W=3)
- After pull out the RD4
connector, check the
terminal of the connector
in wire. (Red 3P, male)
terminal of the connector
in wire. (Red 3P, male)
No
Replace
the Hall
sensor.
the Hall
sensor.
Is hall sensor out of
order?
order?
(Refer to 9-3
Stator assembly/Hall
sensor.)
sensor.)
Yes
No
Replace the
MAIN PWB
ASSEMBLY.
MAIN PWB
ASSEMBLY.
Check the IPM in the
controller.
controller.
No
Is
LE ERROR
displayed?
31
DOOR OPEN ERROR
Yes
Is the connector connected
to door switch or main PWB
disconnected?
to door switch or main PWB
disconnected?
Reconnect or
repair
the connector.
repair
the connector.
Yes
No
Is there clicking sound once
or twice when the
START/PAUSE button is
pressed to start the cycle?
or twice when the
START/PAUSE button is
pressed to start the cycle?
Replace the
PCB
ASSEMBLY.
PCB
ASSEMBLY.
No
Is DOOR SWITCH
ASSEMBLY broken?
ASSEMBLY broken?
Replace the
DOOR
SWITCH
ASSEMBLY.
DOOR
SWITCH
ASSEMBLY.
No
Yes
Does the spring of Latch
Hook actuate?
Hook actuate?
Replace
Door
Assembly.
Door
Assembly.
Yes
No
[Note] Environmental check list
1) The machine must operate with all the doors
1) The machine must operate with all the doors
completely closed and locked.
2) The washing area must operate with a water
temperature not higher than 45 Celsius and
must not have more amount of supplied water
than it should.
must not have more amount of supplied water
than it should.
Is
dE ERROR
displayed?
32
UNBALANCE ERROR
OVER FLOW ERROR
[Note] Environmental check list
1) Removal of transportation-based fixed bolt.
2) Confirmation on the material to see if it is capable
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.
Yes
Does the laundry lean
toward one side, not evenly
put in the DRUM assembly?
toward one side, not evenly
put in the DRUM assembly?
Put laundry
evenly
In the DRUM
assembly
evenly
In the DRUM
assembly
Yes
Is the washing machine
installed at an angle?
installed at an angle?
Adjust the
height of
washing
machine
to be kept
horizontally.
height of
washing
machine
to be kept
horizontally.
Yes
No
Yes
When you press both
WASH/RINSE button and
SOIL LEVEL button
simultaneously, is the
water level frequency over
21.3kHz?
WASH/RINSE button and
SOIL LEVEL button
simultaneously, is the
water level frequency over
21.3kHz?
(Refer to 7-4.)
Check the AIR
CHAMBER
and the tube
(clogged).
CHAMBER
and the tube
(clogged).
No
Does the inlet valve work
when the power is not
applied?
when the power is not
applied?
Replace the
INLET VALVE ASSEMBLY.
INLET VALVE ASSEMBLY.
If the inlet
valve work
continuously
when the power
is applied,
Replace the
MAIN PWB
ASSEMBLY.
valve work
continuously
when the power
is applied,
Replace the
MAIN PWB
ASSEMBLY.
No
Yes
Yes
Is
UE ERROR
displayed?
Is
FE ERROR
displayed?
33
PRESSURE SENSOR ERROR
Yes
Is the connector connected
to pressure sensor
disconnected or
disassembled?
to pressure sensor
disconnected or
disassembled?
Reconnect or
repair
the connector.
repair
the connector.
No
No
Yes
Is the resistance of the
pressure sensor out of
range?
(pin 1~ pin 3)
(21~23
pressure sensor out of
range?
(pin 1~ pin 3)
(21~23
Ω ±10%)
Replace the
pressure
switch.
pressure
switch.
No
Yes
Is the AIR CHAMBER and
the tube clogged?
the tube clogged?
Replace the MAIN PWB
assembly.
assembly.
Fix the air
chamber
and remove
the foreign
material.
chamber
and remove
the foreign
material.
Yes
Is
PE ERROR
displayed?
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