LG WD-80150NU Service Manual ▷ View online
20
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
option (HOT)
ABNORMAL SOUND
SOFTENER DOES NOT FLOW IN
Fix the bolt tightly.
Replace the V-belt
(4400FR3116A)
(4400FR3116A)
Replace the motor.
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 the pulley bolt loosened?
Is the belt worn?
Is there friction noise from the motor?
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?
21
AC 220-240V
NO
NO
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
PWB ASSEMBLY (MAIN)
PWB ASSEMBLY (MAIN)
(RED)
(RED) (WHITE)
(WHITE)
(WHITE)
(WHITE) (BLUE)
(BLUE)
(RED)
(RED) (WHITE)
(WHITE)
(WHITE)
(WHITE) (BLUE)
(BLUE)
1
2
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)
When pressing [Bio] and [Time Delay] at the same
time after draining,
is the water level frequency 252 or more?
When pressing [Bio], [Time Delay] buttons at the
same time while wash, is the water level frequency
between 220 - 240V~?
time after draining,
is the water level frequency 252 or more?
When pressing [Bio], [Time Delay] buttons at the
same time while wash, is the water level frequency
between 220 - 240V~?
Checking voltage between two pins as press
the power button is the voltage
220 - 240V~ ?
the power button is the voltage
220 - 240V~ ?
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 90~160Ω)
(resistance of coil is 90~160Ω)
When checking voltage between connectors
(①, ②)on spinning, is the voltage
220 - 240V~ as the figure?
(①, ②)on spinning, is the voltage
220 - 240V~ as the figure?
HEATING WITHOUT WATER
DRAIN MALFUNCTIONING
22
NO
YES
YES
WASH HEATER TROUBLE
When checking the voltage between
connector the PWB assembly (Main)during
whites washing ,Is the voltage
220 - 240V ?
connector the PWB assembly (Main)during
whites 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 ?
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
6
1
2
3
~
220 - 240V~
PWB ASSEMBLY (MAIN)
(RED)
(RED) (WHITE)
(WHITE)
(WHITE)
(WHITE) (BLUE)
(BLUE)
(RED)
(RED) (WHITE)
(WHITE)
(WHITE)
(WHITE) (BLUE)
(BLUE)
6
1
Replace the thermistor
(6322FR2046)
(6322FR2046)
Push the thermistor
tightly to the rubber.
When disconnect the connector (1) on the
PWB assembly (Main) is the resistance of the
Natural connectors
PWB assembly (Main) is the resistance of the
Natural connectors
[①( Blue White),
⑥(White)]between 2.5kΩ to 180kΩ
(105
(105
℃
~0
℃
)?
When checking thermistor on the tub,
is the thermistor loosened above 2mm from
the rubber?
HEATING CONTINUOUSLY ABOVE
THE SETTING WATER TEMPERATURE
23
NO
YES
YES
YES
NO
NO
(RED)
(RED) (WHITE)
(WHITE)
(WHITE)
(WHITE) (BLUE)
(BLUE)
1
3 4
2
1
10
1 2 3 4 5 6 7 8 9 10
5
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.
Replace the motor
assembly.
(4681FR1194A)
assembly.
(4681FR1194A)
Check on the spinning, is the frequency of the
water level 248 or more. The frequency can be
checked by pressing the Bio and Time Delay buttons
at the same time on the program.
water level 248 or more. The frequency can be
checked by pressing the Bio and Time Delay buttons
at the same time on the program.
When pressing Pre Wash and Crease Care buttons
at the same time after power off, press the START /
PAUSE button 2 times, is the drum low speed spin?
at the same time after power off, press the START /
PAUSE button 2 times, is the drum low speed spin?
Is it disconnected, or disassembled?
[Red:3pin (①), White : 2pin( ), National:4pin( ),
White:3pin( )]
Check the motor connector, Is the resistance between
the terminal in figure the same as below?
Resistance between terminals
① ~ ⑤ : 0.5~1.0
Ω
⑤ ~ ⑩
⑩ : 1.5~2.5Ω
Be sure to unplug the machine before measuring.
MOTOR TERMINAL
Replace the PWB assembly.
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