LG WD-8054FB Service Manual ▷ View online
32
■ WD-6550FB / WD-8050(4)F(H)B / WD-1050(5)F(H)B / WD-1253(5)F(H)(B) / WD-1054(6)F(H)B / WD-1254(6)F(H)B
■ WD-6550F / WD-8050F(H) / WD-1050(5)F(H)
NO
YES
YES
1
2
4
3
(1)
Replace the thermistor.
(6322FR2046B)
(6322FR2046B)
Press 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
~ ② ( Blue/White, Violet),
③ (Blue, White)₩between 2.5kΩ to 180kΩ
(105
(105
℃
~0
℃
)?
When checking thermistor on the tub cover,
is the thermistor loosened above 2mm from
the rubber?
HEATING CONTINUOUSLY ABOVE
THE SETTING WATER TEMPERATURE
1
NO
YES
YES
Replace the thermistor.
(6322FR2046B)
(6322FR2046B)
Get the thermistor back
to the rubber.
to the rubber.
Is the resistance between two receptacles with
BL/WH wires parted from PWB assembly
BL/WH wires parted from PWB assembly
2.5k
Ω to 180kΩ (105
℃
~ 0
℃
)?
When checking thermistor on the tub cover,
is the thermistor gotten more than 2 mm out of the
rubber?
33
Wash
Rinse
Rinse
Spin
3
1
2
NO
YES
YES
YES
NO
NO
NO
YES
(1)
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.
(4681FR1241B)
assembly.
(4681FR1241B)
Check on the spinning, is the frequency of the
water level 248 or more. The frequency can be
checked by pressing the WASH and RINSE buttons
at the same time on the program.
water level 248 or more. The frequency can be
checked by pressing the WASH and RINSE buttons
at the same time on the program.
When pressing RINSE, SPIN, and POWER buttons
at the same time after power off, press the
START/PAUSE button 2 times, is the drum
spinning at low speed?
at the same time after power off, press the
START/PAUSE button 2 times, is the drum
spinning at low speed?
Is it disconnected, or disassembled?
~ Red : 3-pin (1) ₩
Check the motor connector. Is the resistance of
the terminal same as the figure?
MOTOR TERMINAL
Resistance of terminal:
①~② / ②~③ / ③~① : About 6.5Ω
Replace the PWB assembly (Main).
① ② ③
■ WD-6550FB / WD-8050(4)F(H)B / WD-1050(5)F(H)B / WD-1253(5)F(H)(B) / WD-1054(6)F(H)B / WD-1254(6)F(H)B
34
3
2
1
1
10
1 2 3 4 5 6 7 8 9 10
5
4
YES
YES
YES
NO
NO
NO
YES
Rinse
Spin
Normal.
Reconnect or repair it.
Replace the motor
assembly.
(4681FR1194A)
assembly.
(4681FR1194A)
Check the sensor (Pressure) or hose (Sensor).
If the problem is on the sensor or the hose,
replace the sensor or the hose.
If the problem is on the sensor or the hose,
replace the sensor or the hose.
Press
［Power］button with both ［Rinse］and ［Spin］
buttons pressed after power off. Press
［Start/Pause］
button 2 times. Does the drum rotate at low spin
speed?
speed?
Is it disconnected or badly contacted?
~ Natural: 3-pin (①), Red : 4-pin (②), Blue: 2-pin (③),
Yellow:2-pin (
④) ₩
Check the motor connector, Is the resistance between
the terminal in figure the same as below?
Resistance between terminals
① ~ ⑤ : 0.5~1.0Ω
⑤ ~ ⑩ : 1.5~2.5Ω
⑤ ~ ⑩ : 1.5~2.5Ω
Be sure to unplug the machine before measuring.
MOTOR TERMINAL
Replace the PWB assembly (Main).
■ WD-6550F / WD-8050F(H) / WD-1050(5)F(H)
35
Be sure to unplug the machine out of the outlet before disassembling and repairing the parts.
10. DISASSEMBLY INSTRUCTIONS
①
① Unscrew 2 screws on the back of the top plate.
②
②
② Pull the top plate backward and upward as shown.
①
① Disconnect the PWB assembly (Display) connector.
②
②
② Pull out the drawer and unscrew 3 screws.
③
③
③ Push 2 upper hooks down and pull the control panel.
①
① Disconnect the PWB assembly (Display) from the
control panel by unscrewing 9 screws.
Hook
Hook
CONTROL PANEL
PLATE ASSEMBLY (TOP)
PLATE ASSEMBLY (TOP)
PANEL ASSEMBLY (CONTROL)
PWB ASSEMBLY (DISPLAY)
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