LG 40002 Service Manual ▷ View online
20
NO
NO
NO
YES
YES
YES
YES
MAX
max
M
A
X
Detergent
for wash
Fabric
softener
Liquid
Bleach
SOFTENER/BLEACH DOES NOT FLOW IN
Refer to
NO WATER SUPPLY
Check the wiring.
Put it in the correct
compartment.
compartment.
Clean the cap and
container.
container.
Is water supplied?
Are receptacles correctly connected to the terminals
of the INLET VALVE ASSEMBLY?
of the INLET VALVE ASSEMBLY?
Is softener/bleach put in the correct compartment of
the dispenser?
Is the softener/bleach cap clogged?
ABNORMAL SOUND
Secure the bolt.
Replace the STATOR
ASSEMBLY or ROTOR
ASSEMBLY.
ASSEMBLY or ROTOR
ASSEMBLY.
Is the motor bolt loosened?
Is there friction noise coming from the motor?
21
AC 120V
PWB ASSEMBLY (MAIN)
PWB ASSEMBLY (MAIN)
(1)
(2)
(2)
Replace the
SENSOR SWITCH
ASSEMBLY.
Replace the MAIN PWB
ASSEMBLY
ASSEMBLY
Repair the DRAIN HOSE
ASSEMBLY.
ASSEMBLY.
Remove foreign material.
Reconnect or repair the
connector
connector
Repair the DRAIN PUMP
ASSEMBLY.
ASSEMBLY.
Repair the MAIN PWB
ASSEMBLY.
ASSEMBLY.
When pressing Quick Cycle and Spin Speed at
the same time after draining, is the water level
frequency 255?
When pressing and Spin Speed buttons
at the same time while washing, is the water level
frequency between 230 - 243 ?
the same time after draining, is the water level
frequency 255?
When pressing and Spin Speed buttons
at the same time while washing, is the water level
frequency between 230 - 243 ?
Check the voltage between two pins while
pressing the POWER button. Is the voltage
120 V AC?
pressing the POWER button. Is the voltage
120 V AC?
Is the drain hose twisted or frozen?
Is the impeller of the drain pump clogged?
Is the connector disconnected or disassembled.
Is the resistance of the drain pump coil too high or
low? (resistance of the coil is 10-20
Ω)
When checking voltage between connectors
during spin, is the voltage 120 V AC as in the
figure?
HEATING WITHOUT WATER
D R A I N M A L F U N C T I O N I N G
22
washing, is the voltage
120 V AC?
Delay Wash and Quick Cycle
MAIN PWB ASSEMBLY.
Check electrical connection.
Replace THERMISTOR.
Replace THERMISTOR.
YELLOW
RED
AC 120V
PWB ASSEMBLY (MAIN)
Push the THERMISTOR
tightly to the rubber.
tightly to the rubber.
When checking THERMISTOR on the tub, is the
THERMISTOR loosened?
Extra Hot: 66°C
Hot: 45°C
Warm: 30°C
Cold: 15°C
Hot: 45°C
Warm: 30°C
Cold: 15°C
HEATING CONTINUOUSLY ABOVE
THE SETTING WATER TEMPERATURE
23
(1)
S P I N T R O U B L E
Check on the spinning, is the frequency of the water
level 248 or more. The frequency can be checked by
pressing the Time Delay and Quick Cycle
buttons at the same time on the program.
level 248 or more. The frequency can be checked by
pressing the Time Delay and Quick Cycle
buttons at the same time on the program.
Check the sensor
(Pressure) or hose
(Sensor). If the problem is
on the sensor or the hose,
replace the sensor or the
hose.
(Pressure) or hose
(Sensor). If the problem is
on the sensor or the hose,
replace the sensor or the
hose.
When pressing Stain Cycle, Soak and POWER
buttons at the same time after power off, press the
Start/Pause button 2 times, is the drum low speed
spin?
buttons at the same time after power off, press the
Start/Pause button 2 times, is the drum low speed
spin?
Normal
Is it disconnected, or disassembled?
[Black : 2pin( ), Yellow: 2pin( ), Red : 3pin( ),
Blue : 6pin( )]
[Black : 2pin( ), Yellow: 2pin( ), Red : 3pin( ),
Blue : 6pin( )]
Correct the connector
Is it disconnected, or disassembled?
[White : 3pin ( ), National : 4pin ( )]
[White : 3pin ( ), National : 4pin ( )]
Replace the MAIN PWB ASSEMBLY
Correct the connector
Check the motor connector, Is the resistance of the
terminal same as the figure?
MOTOR TERMINAL (1)
terminal same as the figure?
MOTOR TERMINAL (1)
Resistance of terminal :
~
/ ~
/ ~
: About 5
Ω ~ 10Ω
Replace the Stator
Assembly
(4417EA1002D)
Assembly
(4417EA1002D)
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