LG WT-Y2K Service Manual ▷ View online
44
4-5. TEST RUNNING WITHOUT WATER
1) METHOD TO USE QC TEST MODE
• To use the CHECK PROGRAM (QC TEST MODE),while pressing the WATER LEVEL&WATER TEMP. buttons,
press the POWER button.Do not deposit any laundry in the wash tub while in this mode.
• In QC TEST MODE all LEDs are on and press START(PAUSE) button to check over the following items.
NO
CHECK METHOD
DISPLAY
CHECK ITEM
1
2
3
4
5
6
7
8
9
10
Initial state
Press once
Press twice
Press 3 times
Press 4 times
Press 5 times
Press 6 times
Press 7 times
Press 8 time
Press 9 time
•
Water level frequency is on
DISPLAY in the condition of no
water in TUB.
DISPLAY in the condition of no
water in TUB.
•
After detecting laundry amount
the number of pulse is on the
DISPLAY.
the number of pulse is on the
DISPLAY.
• After detecting atmosphere
temperature the number is on the
display
display
• After detecting IPM’s heat sink
temperature is the number is on the
DISPLAY.
DISPLAY.
• The AC power supply voltage is
the DISPLAY
• Auto OFF
• All LEDS ON.
64~70 DISPLAY.
(The meaning of 64~70 number is
26.4~27.0kHz really)
The display differ from function.
• Laundry amount test.
• COLD water ON.
• HOT water ON.
• SOFTENER INLET water ON.
• If the LID is opened, [DOOR OPEN]
is on the DISPLAY. In that case, close the
LID.
LID.
• DRAIN PUMP on.
• this means 240V
• The display voltage twice rating voltage
• The display voltage twice rating voltage
(110~127V only)
• All LEDs off.
45
4-6. 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(Turbo) & Jean wash cycle for heavy
• Wash with Jean or Soak(Turbo) & 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
46
4-7. TROUBLE SHOOTING METHODS ACCORDING TO ERROR MESSAGE
For more detailed information for trouble shooting refer to page 37 to 45.
ERROR DECISION
CAUSE FOR ERROR
BASIS
OCCURRENCE
REMEDY
ERROR
• Water level does not
rise to the set level in
30 minutes.
30 minutes.
“NO INLET”
lamp blinks
• Water is not
completely drained in
12 minutes.
12 minutes.
“NO DRAIN”
lamp blinks
lamp blinks
• Laundry unbalance
during spin.
“UE” display and
singnal continuously
ringing
singnal continuously
ringing
• LID is opened in the
course of intermittent
spin, normal spin or
processing reservation.
spin, normal spin or
processing reservation.
• SIGNAL continuously
ringing.
“DOOR OPEN” lamps
blinks.
blinks.
WATER
SUPPLY
SUPPLY
DRAINAGE
UNBALANCE
DOOR
OPEN
OPEN
• Water faucet is closed?
• Water supply is interrupted.
• Inlet V/V is clogged with dirts.
• Connector has bad contact to
the inlet valve.
• Natural 4 pin connector has
bad contact to the P.W.B ASM.
• Is the drain hose located
properly?
• Drain hose is folded or clogged
due to freeze or dirt.
• Bad Drain Pump part or
BLUE (WHITE) 3 pin connector to
the P.W.B ASM has bad
connection.
connection.
• Laundry in the INNER TUB is filled
unevenly.
• Washer is tilted.
• Lid is opened during
intermittent spin or normal spin?
• Lid is opened while processing
reservation?
• Connector to the Reed S/W or
RED(ORANGE or PINK) 4 pin
connector
connector
to the P.W.B ASM has bad
connection.
connection.
• Open water faucet.
• Wait until water supply is
resumed.
• Clean or replace filter.
• Correct the connector contact.
• Same as above.
• Hung up drain hose at 0.9~1.2m
high. (For pump)
• Put the drain hose lower (For non-pump)
• Unclose the foreign objects within
• Unclose the foreign objects within
drain hose.
• Replace drain pump or correct
the connector contact.
• Try to fill laundry uniformly in the
inner tub.
• Adjust the leg.
• Closed the lid.
• Closed the lid.
• Correct the connector contact.
• Check and replace Lead Wire Asm.
47
ERROR DECISION
CAUSE FOR ERROR
BASIS
OCCURRENCE
REMEDY
ERROR
• Water Pressure Switch
is off.
• AUTO OFF relay S/W
is out of order.
PRESSURE
SENSOR
AUTO OFF
OVER
FLOODING
ERROR
FLOODING
ERROR
MOTOR
ERROR
ERROR
Current
Error
Error
• Connector the PRESSURE S/W
ASM or RED(ORANGE or PINK) 4
pin connector to P.W.B ASM has
bad connection.
pin connector to P.W.B ASM has
bad connection.
• PRESSURE S/W is bad.
(In the initial state of QC TEST MODE,
For WT-R80(5)1
the number on the DISPLAY is less
than 63 or more than 70
Except
for WT-R80(5)1
the number on the DISPLAY is
less than 60 or more than 104)
less than 60 or more than 104)
• Check water leakage or
whether the drain hose is hung
on to drainage which is 0.9 m
obove from floor.
on to drainage which is 0.9 m
obove from floor.
• Check blockage of air hole or
air tube.
• Check & repair air leakage at
the air hole of outer tub the air
tube or connection parts.
• Connector the HALL Sensor or
Natural 6 Pin connector to P.W.B
ASM had bad connection .
ASM had bad connection .
• Connector the stator ASM, and
YELLOW(GREEN) 3 Pin or
Natural 6 Pin connector to P.W.B
ASM had bad connection
Natural 6 Pin connector to P.W.B
ASM had bad connection
• Hall sensor is bad.
• Locked by Bearing Housing
• Locked by Bearing Housing
• IPM is bed
• Motor is short
• Motor is short
• Correct the connector contact.
• Replace PRESSURE S/W ASM.
• Change P.W.B ASM.
• Hang drain hose which is
minimum 0.9m above from floor.
• Replace pressure sensor
switch
• Remove the foreign objects in
pressure sensor switch
• Correct the connect contact.
• Change Stator ASM.
• Change Bearing Housing ASM.
• Change P.W.B ASM.
• Change Stator ASM.
• Change Stator ASM.
• Change Bearing Housing ASM.
• Change P.W.B ASM.
• Change Stator ASM.
• Change PWB ASM
• Change Stator ASM
• Change Stator ASM
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