LG WF-T13D80EP Service Manual ▷ View online
41
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.
results, follow these instructions.
WASHING PROBLEMS
Problems
Possible Causes
Solutions& Preventive Measures
Poor soil
removal
removal
Blue Stains
Black or gray
marks on
clothes
marks on
clothes
Yellow or
brown rust
stains
brown rust
stains
Lint
Residue or
Detergent
Detergent
Holes, tears,
or snags
or snags
Undiluted fabric softener
dispensed directly onto fabric
dispensed directly onto fabric
A buildup caused by the interaction
of fabric softener and Detergent
can flake off and mark clothes
Not enough Detergent
of fabric softener and Detergent
can flake off and mark clothes
Not enough Detergent
Iron or manganese in water
supply, water pipes, or water
heater
supply, water pipes, or water
heater
Incorrect sorting
Incorrect sorting
Overloading the washer
Incorrect sorting
Overloading the washer
Overloading the washer
Undissolved Detergent
Use too much Dtergent
Undissolved Detergent
Use too much Dtergent
Incorrect use of chlorine bleach.
Unfastened zippers, hooks,
buckles
Ribs, tears and broken threads
Overloading the washer
Degradation of fabric
Unfastened zippers, hooks,
buckles
Ribs, tears and broken threads
Overloading the washer
Degradation of fabric
Not enough Detergent
Wash Water Temperaturetoo low.
Overloading the washer
Incorrect wash cycle
Incorrect sorting
Do not pretreat stain.
Wash Water Temperaturetoo low.
Overloading the washer
Incorrect wash cycle
Incorrect sorting
Do not pretreat stain.
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.
Reduce load size.
Wash with Heavy or Soak & Hand Wash for heavy soiled laundry.
Separate heavily soiled items from lightly soiled ones.
Pretreat stain and heavy soil according to directions shown on
page 11.
water Hardness.
Use WARM or HOT water for normal soil. Different Water Temperature
may be required according to soil type.
Reduce load size.
Wash with Heavy or Soak & Hand Wash for heavy soiled laundry.
Separate heavily soiled items from lightly soiled ones.
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 fabric
softener directly onto fabric.
See page 14 for more instructions.
Do not overfill fabric softener dispenser and do not pour liquid fabric
softener directly onto fabric.
See page 14 for more instructions.
Keep the recommendations against Scrud (waxy buildup).
Use correct amount of Detergent for load size, amount of soil
and water Hardness.
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.
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 e.g. synthetic fabrics and remove tissues in
pockets before wash. See page 11 for sorting and caring before
loading.
Do not overload the washer
lint collectors e.g. synthetic fabrics and remove tissues in
pockets 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 instructions. Try pre-dissolving the Detergent.
Increase Water Temperature using HOT water safe for fabric.
Use proper amount of 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.
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 loading.
Do not overload the washer.
See page 13 for adding liquid bleach.
Fasten zippers, hooks, and buckles.
Remove objects in pockets. See page 11 for caring before loading.
Do not overload the washer.
42
4-8. TROUBLE SHOOTING METHODS ACCORIDNG TO ERROR MESSAGE
For more detailed information for trouble shooting refer to page 44 to 53.
ERROR
WATER
SUPPLY &
INLET V/V
INLET V/V
DRAINAGE
UNBALANCE
OVER
FLOODING
ERROR
WATER LEVEL
dose nto rise to
the set level in 40
minutes.
dose nto rise to
the set level in 40
minutes.
Water is not
completely
drained in 10
minutes.
completely
drained in 10
minutes.
Laundry
unbalance during
spin.
unbalance during
spin.
In the second QC
Mode the
following message
is displayed.
Mode the
following message
is displayed.
Water faucet is closed?
Water supply is interrupted.
Inlet V/V is clogged with
dirts.
Connector has bad contact
to the inlet valve.
Red(RD), White(WH),
Blue(BL), Yellow(YL) 3 pin
connector has bad contact to
the P.W.B ASM.
Water supply is interrupted.
Inlet V/V is clogged with
dirts.
Connector has bad contact
to the inlet valve.
Red(RD), White(WH),
Blue(BL), Yellow(YL) 3 pin
connector has bad contact to
the P.W.B ASM.
Is the drain hose located
properly?
Drain hose is not lowered.
Drain hose is folded or
clogged due to freeze or
dirts.
Bad Drain Motor part or
Yellow(YL) 3 pin connector
to the P.W.B ASM has bad
connection.
properly?
Drain hose is not lowered.
Drain hose is folded or
clogged due to freeze or
dirts.
Bad Drain Motor part or
Yellow(YL) 3 pin connector
to the P.W.B ASM has bad
connection.
Laundry in the INNER TUB
is filled unevenly.
Washer is tilted.
S.F S/W is too closed to the
washing tub, or has bad
contact.
Is the CONNECTOR of Ball
pressure sensor
disconnected or badly
touched?
is filled unevenly.
Washer is tilted.
S.F S/W is too closed to the
washing tub, or has bad
contact.
Is the CONNECTOR of Ball
pressure sensor
disconnected or badly
touched?
Check INLET valve
Open water faucet.
Wait until water supply is
resumed.
Clean or replace filter.
Correct the connector
contact.
resumed.
Clean or replace filter.
Correct the connector
contact.
Same as above.
Hung up drain hose at
0.9~1.3m high.
0.9~1.3m high.
Unclog the drain hose.
Replace Drain Motor or
correct the connector
contact.
correct the connector
contact.
Try to fill laundry uniformly
in the inner tub.
in the inner tub.
Adjust the leg.
Check and replace S.F S/W.
Check and replace S.F S/W.
Check B.P SENSOR
CONNECTOR or replace
B.P sensor
CONNECTOR or replace
B.P sensor
ERROR DECISION
BASIS
CAUSE FOR ERROR
OCCURRENCE
REMEDY
43
ERROR
DOOR
OPEN
PRESSURE
SENSOR
LAUNDRY
AMOUNT
SENSOR
LID is opened in
the course of
intermittent spin,
normal spin or
processing
reservation.
the course of
intermittent spin,
normal spin or
processing
reservation.
SIGNAL
continuously
ringing.
continuously
ringing.
Water Pressure
Switch is off.
Switch is off.
In the second QC
MODE, the
following
message is
displayed.
MODE, the
following
message is
displayed.
Lid is opened during
intermittent spin or normal
spin?
Lid is opened while
processing reservation?
Connector to the S.F S/W or
White(WH) 3 PIN
CONNECTOR to the P.W.B
ASM has bad connection.
S.F S/W or BALL
PRESSURE SENSOR is
bad or bad contact.
Is placed magnetic in LID?
intermittent spin or normal
spin?
Lid is opened while
processing reservation?
Connector to the S.F S/W or
White(WH) 3 PIN
CONNECTOR to the P.W.B
ASM has bad connection.
S.F S/W or BALL
PRESSURE SENSOR is
bad or bad contact.
Is placed magnetic in LID?
Connector the Ball Pressure
Sensor(Pressure Switch) or
BLUE(BL) 3 pin connector to
P.W.B ASM has bad
connection.
Ball Pressure Sensor
(Pressure Switch) is bad. (In
the initial state of QC TEST
MODE, the number on the
DISPLAY is less than 63 or
more than 70)
Sensor(Pressure Switch) or
BLUE(BL) 3 pin connector to
P.W.B ASM has bad
connection.
Ball Pressure Sensor
(Pressure Switch) is bad. (In
the initial state of QC TEST
MODE, the number on the
DISPLAY is less than 63 or
more than 70)
Check MOTOR, CLUTCH,
V-BELT, CONDENSOR.
Check over all connectors if
they have bad connection.
V-BELT, CONDENSOR.
Check over all connectors if
they have bad connection.
Closed the lid.
Closed the lid.
Correct the connector
contact.
contact.
Check and replace S.F S/W
or BALL PRESSURE
SENSOR.
Change the LID.
or BALL PRESSURE
SENSOR.
Change the LID.
Correct the connector
contact.
contact.
Replace Ball Pressure
Sensor(Pressure Switch).
Sensor(Pressure Switch).
Try to fill laundry uniformly in
the inner tub.
Adjust the leg.
Check and replace S.F S/W.
the inner tub.
Adjust the leg.
Check and replace S.F S/W.
Check B.P SENSOR
CONNECTOR or replace
B.P sensor
CONNECTOR or replace
B.P sensor
ERROR DECISION
BASIS
CAUSE FOR ERROR
OCCURRENCE
REMEDY
44
4-9. HOW TO DIAGNOSE AND REPAIR BY SYMPTOM
1) Washer is not energized.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
Household Power supply
1. Check whether connection between the
plug and the electrical is poor
2. Measure voltage of the electrical.
Wiring of the Washer
1. Measure resistance between both ends
of the power supply cord with both the
plug pins short-circuited.
plug pins short-circuited.
2. Check whether every connector in the
bundle of connectors has a good
connection.
connection.
3. Check resistance of every wire to find
out a open wire.
Electrical component
1. Check resistance with power relay
switch turned on
2. Check the secondary voltage of the
transfomer.
3. Measure resistance to check whether
the T.P of the motor is blown out.
4. Check whether the fuse is open.
Controller
If there are no defects in the above,
it should be defect of the controller.
it should be defect of the controller.
If supply voltage is 120% higher than
rating the varistar in the controller may
be broken. Check supply voltage.
rating the varistar in the controller may
be broken. Check supply voltage.
Poor
Around rating
0 V
Less than 1
∞
Male & female
connectors separated
connectors separated
∞
Less than 0.5
More than 1.0
10~14 V
0 V
∞ Ω
and motor is hot
Open
Over 120% voltage
than rating check
than rating check
Change the controller if all
the electrical parts have no
defects.
the electrical parts have no
defects.
Defect of the electrical
No defect
Defect of household
power supply
power supply
No defect
Open circult of the power
supply cord
supply cord
Poor connection
Wire is opened.
No defect
Poor contact
No defect
Coil is open
T.P blown out.
Defect of the fuse
Change the electrical.
Call for power supply
company
company
Change the power supply
cord.
cord.
Remove the cause to give
strain and reconnect
them.
strain and reconnect
them.
Change the lead wire
Change the AUTO OFF
Switch
Switch
Change the
transfomerformer.
Remove cause to
overload the motor
Change the fuse.
CAUTION
Check the fuse rating
AC100~127V:125V 12A
AC220~240V:250V 6A
CAUTION
Check the fuse rating
AC100~127V:125V 12A
AC220~240V:250V 6A
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