LG WF-T753A Service Manual ▷ View online
30
2) Disassembly of Back Panel, Power
Cord, Inlet Valve & BP Sensor
Remove two back panel fixing screws in the back
side.
Disassemble the back panel.
Disconnect two connectors and disassemble the
power cord.
Remove a valve fixing screw & disconnect the
leads form the inlet valve.
Remove the inlet valve.
Disconnect the leads & the pressure tube from the
BP sensor.
Remove the BP sensor.
3) Disassembly of Lid Assembly, Top
Cover, Tub Cover, Pulsator & Inner Tub
Remove Q-spring & two hinge pins then
disassemble the lid assembly
Remove two top cover fixing screws in the rear
then disassemble the top cover.
Remove tub cover fixing screws then disassemble
the tub cover.
Remove the pulsator fixing screw then disassemble
the pulsator.
Remove the hub fixing nut by a special tool.
Disassemble the inner tub.
Inlet valve
Power cord
BP sensor
Q-spring
Hinge Pin
Hinge Pin
31
4) Disassembly of Back Cover, Drain
Pump, Clutch(Transmission) & Motor
Remove back cover fixing screws then
disassemble the back cover.
disassemble the back cover.
Disconnect the leads and the drain hose-p from the
drain pump.
drain pump.
Remove the pump fixing screws then disassemble
the drain pump.
the drain pump.
Fall down the washer for clutch & motor removal.
Remove the belt.
Disassemble the clutch.
Remove two motor fixing screws then disassemble
the motor.
the motor.
5) Replacement of Damper asm
Separate top cover from washing machine.
As in the fig, lift snubber bar and take it out of out
case with out tub.
Damper assembly shall not be disassembled.
Replace damper as assembly.
Replace damper as assembly.
For assembly, keep the following.(Location & color)
Location
P/No.
PIVOT(Color)
,
A051
NATURAL
,
A052
BLUE
A
D
C
B
C
D
A
B
PIVOT
PIVOT
PIVOT
FRONT
PIVOT
Pump fixing screw
Leads
Drain hose-p
Pulsator
Tub cover
Inner tub
Hub fixing nut
32
NO
CHECK METHOD
DISPLAY
CHECK ITEM
4-6. TEST RUNNING WITHOUT WATER
1) METHOD TO USE QC TEST MODE
A) LA-1055ST, LA-1099ST
• To use the CHECK PROGRAM (QC TEST MODE), press WATER LEVEL, PROCESS and POWER
button ON without depositing any laundry.
• In QC TEST MODE all LEDs are on and press START(PAUSE) button to check over the following
items.
1
2
3
4
5
6
7
Initial state
Press once
Press twice
Press 3 times
Press 4 times
Press 5 times
Press 6 times
• Water level frequency is on
DISPLAY in the condition of no
water in TUB.
• After detecting laundry amount
the number of pulse is on the
DISPLAY.
• AUTO off.
• All LEDS ON.
¡
64~69 DISPLAY.
• Laundry amount test.
• COLD water.
• HOT water. (option)
• If the LID is opened, is on the
DISPLAY. In that case, close the LID.
• DRAIN MOTOR is 1st start.
• DRAIN MOTOR is 2nd start and drain
pump is on.
• All LEDS OFF.
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4-7. TROUBLE SHOOTING AGAINST COMMON WASHING PROBLEMS
Many washing problems involve poor soil & stain removal, residues of lint and scum,
and fabric damage. For satisfactory washing results, follow these instructions.
and fabric damage. For satisfactory washing results, follow these instructions.
WASH PROBLEM
Possible Causes
Problems
Solutions & Preventive Measures
• Use correct amount of detergent for load size, amount of soil
and water hardness.
• Use warm or hot water for normal soil.
Different water temperature may be required according to soil
type. (refer to page 12)
type. (refer to page 12)
• Reduce load size.
• Wash with Jean or Soak(Speedy Soak) & Jean wash cycle for
• Wash with Jean or Soak(Speedy Soak) & Jean wash cycle for
heavy soiled laundry.
• Separate heavily soiled items from lightly soiled ones.
• Pretreat stain and heavy soil according to directions shown on
• Pretreat stain and heavy soil according to directions shown on
page 11.
• Rub the stain with bar soap. Wash.
• Do not overfill fabric softener dispenser and do not pour liquid
• Do not overfill fabric softener dispenser and do not pour liquid
fabric softener directly onto fabric.
See page 14 for more instructions.
See page 14 for more instructions.
• Keep the recommendations against Scrud(waxy buildup). (refer
to scrud page14.)
• Use correct amount of detergent for load size, amount of soil
and water hardness.
• To restore discolored load of whites, use rust remover safe for
fabric.
• Install nonprecipitating water softener or an iron filter in your
water supply system for an ongoing problem.
• Before washing, run water for a few minutes to clear lines.
• Wash lint givers eg towels, flannelette sheets, separately from lint
collectors eg synthetic fabrics and remove tissues in pockets
before wash. See page 11 for sorting and caring before loading.
before wash. See page 11 for sorting and caring before loading.
• Do not overload the washer
• Do not overload the washer.
• Some detergents need to be pre-dissolved, check the detergent
• Some detergents need to be pre-dissolved, check the detergent
instructions. Try pre-dissolving the detergent.
• Increase water temperature using hot water safe for fabric.
• Use proper amount of detergent.
• Use proper amount of detergent.
• Never pour chlorine bleach directly on fabric.
See page 13 for adding liquid bleach.
• Fasten zippers, hooks, and buckles.
• Remove objects in pockets. See page 11 for caring before
• Remove objects in pockets. See page 11 for caring before
loading.
• Do not overload the washer.
Poor soil
removal
removal
• Not enough detergent
• Wash water temperature
• Wash water temperature
too low.
• Overloading the washer
• Incorrect wash cycle
• Incorrect sorting
• Do not pretreat stain
• Incorrect wash cycle
• Incorrect sorting
• Do not pretreat stain
• Undiluted fabric softener
dispensed directly onto
fabric
fabric
• A buildup caused by the
interaction of fabric
softener and detergent can
flake off and mark clothes
softener and detergent can
flake off and mark clothes
• Not enough detergent
• Iron or manganese in
water supply, water pipes,
or water heater
or water heater
• Incorrect sorting
• Tissues left in pocket
• Overloading the washer
• Tissues left in pocket
• Overloading the washer
• Overloading the washer
• Undissolved detergent
• Use too much detergent
• Undissolved detergent
• Use too much detergent
• Incorrect use of chlorine
bleach.
• Unfastened zippers,
hooks, buckles
• Ribs, tears and broken
threads
• Overloading the washer
• Degradation of fabric
• Degradation of fabric
Blue Stains
Holes, tears,
or snags
or snags
Black or gray
marks on
clothes
marks on
clothes
Yellow or
brown rust
stains
brown rust
stains
Lint
Residue or
detergent
detergent
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