LG WD-12337HDX Service Manual ▷ View online
28
NO
NO
NO
YES
YES
YES
YES
option (HOT)
MAX
max
YES
YES
NO
Fix the bolt tightly.
Replace the STATOR
assembly
assembly.
assembly
assembly.
or ROTOR
Is the motor bolt loosened?
Is there friction noise from the motor?
ABNORMAL SOUND
SOFTENER DOES NOT FLOW IN
Refer to
^NO WATER SUPPLY_
Check the wiring on the
dispenser.
dispenser.
Put it in the correct
compartment.
compartment.
Clean the cap and
drawer.
drawer.
Is water supplied?
Are receptacles correctly connected to the
terminals of inlet valve?
terminals of inlet valve?
Is softener put in the correct compartment of
drawer?
Is the softner cap clogged?
29
AC 220-240V
NO
YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
PWB ASSEMBLY (MAIN)
PWB ASSEMBLY (MAIN)
Replace the sensor
(pressure)
(pressure)
Replace the PWB
assembly
assembly
Repair drain hose
Remove foreign
material.
material.
Reconnect or repair the
connector
connector
Replace the pump
assembly
assembly
Replace the PWB
assembly (Main)
assembly (Main)
Water level frequency 252 or more?
Water level frequency between 230~245~?
Checking voltage between two [Yellow(RD),
Black(YL)]pins as press the power button is
the voltage 220 - 240V~ in without water
condition
Black(YL)]pins as press the power button is
the voltage 220 - 240V~ in without water
condition
Is the drain hose twisted or frozen?
Is the impeller of the drain pump clogged?
Is the connector disconnected,
disassembled?
disassembled?
Is the coil of drain pump cut-off?
(resistance of coil is 90~160
(resistance of coil is 90~160
)
When checking voltage between connectors
(
(
, ) on spinning, is the voltage
220 - 240V~ as the figure?
HEATING WITHOUT WATER
DRAIN MALFUNCTIONING
30
NO
YES
YES
WASH HEATER TROUBLE
When checking the voltage between
connector the PWB assembly (Main)
during cotton 95°C washing ,Is the voltage
220 - 240V ?
connector the PWB assembly (Main)
during cotton 95°C washing ,Is the voltage
220 - 240V ?
Replace the PWB
assembly (Main)
assembly (Main)
YES
NO
After power off and the heater terminal is
disconnected, is the resistance 10 to 30 ?
disconnected, is the resistance 10 to 30 ?
(1)
(1)
4
Replace the heater
assembly
assembly
NO
After power off,is the resistance of wire
(RED-YELLOW) connectors between
10 to 30 ?
(RED-YELLOW) connectors between
10 to 30 ?
Normal
NO
YES
RED
YELLOW
1
2
3
~
220 - 240V~
PWB ASSEMBLY (MAIN)
Replace the thermistor
(6322FR2046C)
(6322FR2046C)
Push the thermistor
tightly to the rubber.
When checking thermistor on the tub,
Red
is the thermistor loosened above 2mm from
the rubber?
HEATING CONTINUOUSLY ABOVE
THE SETTING WATER TEMPERATURE
3
31
NO
YES
YES
YES
NO
NO
YES
NO
NO
YES
SPIN TROUBLE
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.
Normal
Correct the connector.
Correct the connector.
Replace the STATOR
assembly.
assembly.
While spinning, is the frequency of the
water level 248 or more?
water level 248 or more?
Pressing QC test mode buttons at the same
time after power off, press the START/PAUSE
button 2 times, is the drum low speed spin?
time after power off, press the START/PAUSE
button 2 times, is the drum low speed spin?
Is it disconnected, or disassembled?
[White : 3pin ( ), Red:3pin ( ),
Red:3pin ( ), National:4pin ( )]
[White : 3pin ( ), Red:3pin ( ),
Red:3pin ( ), National:4pin ( )]
Is it disconnected, or disassembled?
White : 3pin( ), White:4pin( )]
White : 3pin( ), White:4pin( )]
Check the motor connector, Is the resistance of
the terminal same as the figure?
MOTOR TERMINAL (1)
Resistance of terminal:
Replace the PWB assembly.
(2)
(1)
~
~
~
/
/
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