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Automatic Washing MachineOwners Maintenance Manual

Note:

Please read this manual carefully before repairing your set.

Retain it for future reference.

Quote this information when you require maintenance.

Model: T8504DE

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Contents

1. Safety Information. 3

2. Specification5

3. Features and Technical Instructions6

4. Identification of Parts. 10

5. Installation Guide. 11

6. Circuit diagram14

7. Washing program. 14

8. Introduction of Each Operation Button. 15

9. Dismantle Guide. . 17

10. Running Test. 24

11. Trouble shooting. . 25

12. Care and Maintenance. 28

13. Disassembly diagrams and parts list. 36

WarningSafety instruction! Unplug before maintenance

This maintenance manual is intended for professional maintenancestaff only.

Non-professional maintenance staffs are not allowed to disassembleor maintain the machine.

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Safety information (Read carefully)

Warning

Fire or Electric Leakage 1. Do not place any heat source or

open flame (such as anti-mosquitoincense, candle, cigarette, etc.)around your washer.

Fire ,electric leakage or

short-circuit1. Do not water on your appliance

when cleaning.

Fire or Short-circuit1. Unplug this appliance from the

power supply after use.2. Do not pull power cord whenunplugging.3. Do not use when power plug

looses.4.Do not bend bind or press the power cord.

5. Keep your appliance free ofoutdoors or wet areas.

6. Do not use your appliance on acarpeted floor.

Explosion 1. Do not add explosive substances

(such as wax, oil, paint, gasoline,etc.) to the washer. Do not

place these substances aroundyour washer. \

Personal Injury 1.Do not allow children to play

on ,with or inside this appliance

Personal Injury 1.Never reach into washer while it

is moving 2.Wait until the machine has

completely stopped beforeopening the lid and touching thelaundry

Warning

Deformation 1.The temperature of washingshould be below 40 underWARM.2. Do not climb or hold weight onthe washer.

Damage 1. Do not keep water in the washer

in case of freezing.

Vibration1.Do not wash waterproofclothes(such as rain cape, feathersdress shower curtain or sleeping

bags) .

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3. Feature and technique instruction

3-1. DD Centrifugal Washing

WASH PROCESS

WASH PRINCIPLE

Soils

Centrifugal flow crossTub rotates

Drive tub to rotate directly through

DD motor. Stream crosses through

laundry and injects from the top of

tub.

Laun

STR

The stream takes away stains on the laundry

3-2. DD Inverter DC Motor DD Inverter DC Motor sets magnet on rotor and winds coils on stator, whose current is

controlled by sensor and control chips instead of traditional brush.

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Structure of DD Inverter DC Motor

`

Rotor

Motor

Sensor moduleCoil

Stator

Magnet

Working PrincipleMotor speed is controlled by the signal width of pulse.

Oscillogram(Low rotate speed )

Narrow pulse width(Low rotate speed)

Oscillogram

(High- rotate

speed )

Broad pulse width

(High- rotate speed )

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3-3. Electronic Brake SystemsElectronic Brake System is braked by reverse current of motor.

Capacitance control chips

* 3-4. Structure and working principle of drain valve

Start draining: starting with turning motor rotor and pulling the drain valve to (as seen below)

Stop draining: End with turning rotor to initial point to close the valve and stop draining.

Drain motorDrain valve rod

Rotor

Drain valve inlet

Bellows

* For non pump model

Features Drain motor rotor can only be rotated counterclockwise when power is on. For easy maintenance, Drain motor rotor can only be rotated counterclockwise when power is

on. The function of inside button in motor is to sensor the initial position The POWER OFFis

at the position of stopping draining. Rotor shall finally return to original position and stop draining when pressing START/PAUSE

or POWER button. But it does not work while unplugging the power or power failure and

restart when power is on.

During maintenance turn counterclockwise to implement forced drainage.

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3-5. Safety Reed Switch

This reed switch system may differ from the old one. The reed switch is in PC board module

and works through contacting with magnets inside lid switch. It would not work until lid is

closed and current is passed through.\ Do not place any magnetic object on the machine, which may lead to operation error.

3-6. Intelligence perception Seven intelligence perception including unbalance, measurement, water level, door openness,

water temperature , water hardness and detergent density Unbalance perception may differ from that of old models. It percepts unbalance through

motor rotate speed of DD motor sensor under SPIN and abnormal operation.

3-7.10 Section level 10 section water level

The water level can be adjusted manually with a cycle of

[7 8 9 10 1 2 3 4 5 6 7] according to requirements as

the button is pressed.

Water

level/detergent

Water level

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4. Identification of Parts

POWER DETERGENTAND SOFTNER BOX

FILTER

BLEACH DISPENSER

*FUNCTION SLECTOR

*STAINLESS TUBSTART/PAUSE

ADJUSTABLE LEGS

WATER SUPPLYHOSE Make sure the waterdoes not leak~

POWER PLUG If the supply cord

is damaged, it must be replaced by thequalified person.

Holder can be fixable

*DRAIN HOSE Check if the drain hoseis hang up beforeoperating the washingmachine.

*MUTE BASE

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5-2. Connecting Water Supply Hose

Connecting Water Supply Hose to the machine

Check to see if there is a black rubber seal inside the

connector. If not, it would cause water-leakage.

Hose

Rubber seal

Inlet valve

Connect the water supply hose to inlet valve of the

washing machine vertically.

Connect the water supply hose to inlet valve of thewashing machine, and then lock it by turning the hose

connecting part.

Connecting Water Supply Hose to water tap

Separate connector from the Water Supply Hose by

pulling the Pressing Rod and the Pressing Handle that

is attached to the Water Supply Hose.

If the tap diameter is too large , remove the guide plateinside

Connector

PressPress

Water

Untighten the 4 screws on the upper connector and

turning the down connector to leave space about 3

screws between the two connectors.

If the tap diameter is too large,

remove the guide plate inside.

Upper-con

Guide

3 screws

Down-con

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Adjust four screws on connectors to make sure that the

two screws near the wall are in tight contact with

outside of water tap.The screws close to the wall should

be screwed beforehand.

Water tap

Push the upper connector up till the rubber packing

can adhere completely to the tap (Attention: Do not

remove the rubber packing).

Turning two screws to be in tight contact with water

tap. Then tighten the 2 screws.

Turn the lower connector to be in tight contact with

the upper one (Loose connection will cause the water

leakage). Make sure the clearance between the two

connectors is less than 3mm.

Confirmation

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Push the pressing rod of water supply

hose when removing it.

Insert Water Supply Hose into down

connector and loosen pressing handle

during the Water Supply Hose

installation.

Make sure pressing handle is in connector slot.

Check for water leakage

After connecting the hose, open the tap to check for any water leakage. If the connection leaks, close the tap and start again from step 1. (For example, poor installation of

upper connector or upper and down connectors is not in tight with each other.)

Loose after long-time use Close the tap and start again from step 1. (the same with moving houseor reinstalling water supply hose)

5-3. Connecting Drain Hose Fit the end of the drain hose to the outlet of the

drain hose.

Push the drain hose and fix it with clip.

Check that the drain hose is hung up over the edge of

the laundry tub . Do not use an extension hose . Never lay down the drain hose ,as water will be

discharged Be sure the drain hose is properly routed so it will not

link or lift from the sink. The discharge height should be approximately

0.9~1.2m from the floor

Install or store where it will not be exposed to sun rain or winds Caution Please use standard rated voltage.

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6. Circuit diagram Apply in T8504DE

7. Washing Program

Basic process of each function (minutes)PROCESS

WATER

LEVEL

Controller module

eactor

ma oar

ressure sensor

ter

a ement

. . sensor motor utc motor ra nagetractor

PROGRAME

WASH RINSE SPIN

Water level8-10

level

5-7

level

3-4

level

1-2

level

8-10

level

5-7

level

3-4

level

1-2

level

8-10

level

5-7

level

3-4

level

1-2

level

FUZZY(NORMAL)

CASUAL WASH

About

20

About

17

About

14

About

10About 4 About 4

QUICK WASH About 3 About 2 About 1

SILENT About 25 About 4 About 4

WOOL About 6 About 4 About 1

POWER WASH

INTELLIGENT

WASH

About

19

About

17

About

14

About

10About 4 About 4

TUB CLEAN About 19 About 4 About 4

Instruction: each period time varies because of water pressure. Notes:

Noise will occur under high water pressue. Use water tap switch to regulate water to eliminatenoise.

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Introduction of each operation button T8504DE

AIR DRY TIME LEFT, DELAY, ALARM INDICATION

Air Dry: improve the dehydration performance, prevent the mold caused by moist air.

During "Air Dry", only "START/PAUSE","PROGRAM" and "POWER" button areavailable.

AIR DRY will go on till the power is off

Time left-During operation, the remaining time isindicated DELAY STARTINDICATION(RESERVATION)-When DELAYSTART(RESERVATION) program is selected, itindicates the finishing time Alarm indication-When an error occurs, an errormessage appears to indicate the abnormality. For

example, indicates that the lid is open

STREAM

The stream strength can be

adjusted manually with a

cycle of

medium strong weak

according to requirements.

WATER LEVEL WASH RINSE CHILD LOCK Use to adjust washing

time.

Washing time can be

adjusted manuallyaccording torequirements and the

time is increasingwith certain sequenceas the button is

pushed.

Press"START/PAUSE"

button beforeadjusting the

"WASH" program.

Press RINSE" button to

adjust rinsing times.

The rinsing times can be

adjusted manuallyaccording to requirementsand are no more than

five.[1 2 3 4 5 off 1]

Use to lock or unlock thecontrol buttons to preventsettings from beingchanged by a child

To lock, push the RINSEand SPIN buttonssimultaneously for 3seconds

CHILD LOCK isactivated with soundDINGDING and screendisplays every2 seconds. During theCHILD LOCK, all the

buttons are lockedincluding POWER.

If you want to unlockduring wash, press bothWASH and SPIN

button simultaneouslyagain.

Notice:1. Because of automatically optimization of the micro-processor, the display time may change. The increase and

decrease of the old time should not exceed 8 minutes and 4 minutes respectively.2. The standard that compared with sensor result is set up according to the normal standard, which may not

conform to some specific users. 3. The detergent amount sensor is designed according to the synthetic detergent. If you add liquid detergent,

soap powder or overdose bleach, sensor sensitivity will degrade.

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WASHING CONDITION INDICATOR START/PAUSE The program can only be executed when it is under the "STANDARD" or

"INTELLIGENT WASH" mode. It cannot be perceived if"WASH","RINSE" or "SPIN" is selected.

During sensor, the indicator blinks in the order of green-orange-red. Whensensor is over, a specific color will be displayed according to the following

detecting result.1. If the washing condition(amount of detergent, water temperature and water

quality) is superior to standard condition, the micro-processor willautomatically reduce washing time/strength and the indicator will turn red.

2. If the washing condition is inferior to standard condition, Micro-processorwill automatically improve washing time/strength and the indicator will turnorange.

3. If the washing condition is standard, the program remains unchanged andindicator turns green.

Use to start or pause thewashing process

Repeats start and pause by pushing the button.

POWER/AUTO OFF Use to turn the power on or off

The power goes off

automatically about 10

seconds after the wash is

finished or 10 minutes under

PAUSE state.

SPIN DELAY PROGRAM Use to adjust spinning time. Spinning time can be adjusted

manually according torequirements and the time isincreasing with certainsequence as the button is

pushed. Press "START/PAUSE" button

before adjusting the "SPIN" program.

Use to set a delayed finishingtime before a leave to avoidwrinkling

The following settings areindicated as the button is

pushed

3->4->5->.11->12->14->1646->48->3 HOUR

Use for selecting wash program This button allows you to select 8

different programs for differentkinds of laundry and dirtinessProgram selections light up insequence as follows:

FUZZY(NORMAL) POWERWASH QUICKWASH WOOL INTELLIGE

NTWASH SILENT CASUALWASH TUBCLEAN FUZZY(NORMAL)]

To cancel delay time, turn the power switch off

4. Sensor sensitivity will decrease after long-time use. Please use "TUB CLEAN" program to clean the inner andouter tub 5. Even if the water level or temperature is changed during "STANDARD" program, the sensor is still working.Inner optimization algorithm varies because of different models 6. Control panel may differ according to different models.7. "Three-level" mode is available when the water level is between 3 and 8 beside "WOOL" and "TUB CLEAN"

program.

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Introduction of each operation button (T8504DE)

AIR DRY TIME LEFT, DELAY, ALARM INDICATION

Use to improve the dehydration performance, prevent the mold caused by moist air. During "Air Dry", only "START/PAUSE",

"PROGRAM" and "POWER" button areavailable.

AIR DRY will go on till the power is off

Time left-During operation, the remaining time isindicated DELAY STARTINDICATION(RESERVATION)-When DELAYSTART(RESERVATION) program is selected, itindicates the finishing time Alarm indication-When an error occurs, an error

message appears to indicate the abnormality. For

example, indicates that the lid is open

STREAM

The stream strengthcan be adjusted

manually with a

cycle of

medium strong w

eak according to

requirements.

WATER LEVEL WASH RINSE CHILD LOCK According to the weight of laundry, this

machine detects the quantity of laundryautomatically, then sets and displays theWATER LEVEL and proper amount ofDetergent.

The water level can be adjusted manuallywith a cycle of[7 8 9 10 1 2 3 4 5 67] According to requirements as the

button is pressed.

Use to adjust washing time.

Washing time can be adjustedmanually according torequirements and the time isincreasing with certainsequence as the button is

pushed. Press "START/PAUSE" button

before adjusting the "WASH" program.

Press "RINSE" button toadjust rinsing times.

The rinsing times can beadjusted manuallyaccording to requirementsand are no more thanfive.[1 2 3 4 5 off 1]

Use to lock or unlock thecontrol buttons to preventsettings from being changed bya child

To lock, push the RINSE andSPIN buttons simultaneouslyfor 3 seconds

CHILD LOCK is activatedwith sound DINGDING andscreen displaysevery 2 seconds. During theCHILD LOCK, all the

buttons are locked includingPOWER.

If you want to unlock duringwash, press both WASH andSPIN button simultaneouslyagain.

Notice:4. Because of automatically optimization of the micro-processor, the display time may change. The increase and

decrease of the old time should not exceed 8 minutes and 4 minutes respectively.5. The standard that compared with sensor result is set up according to the normal standard, which may not

conform with some specific users. 6. The detergent amount sensor is designed according to the synthetic detergent. If you add liquid detergent,

soap powder or overdose bleach, sensor sensitivity will degrade.

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(WASHING CONDITION INDICATOR) (START/PAUSE) The program can only be executed when it is under the "STANDARD" or

"INTELLIGENT WASH" mode. It cannot be perceived if "WASH", "RINSE"or "SPIN" is selected.

During sensor, the indicator blinks in the order of green-orange-red. Whensensor is over, a specific color will be displayed according to the followingdetecting result.

1. If the washing condition(amount of detergent, water temperature and waterquality) is superior to standard condition, the micro-processor willautomatically reduce washing time/strength and the indicator will turn red.

2. If the washing condition is inferior to standard condition, Micro-processor willautomatically improve washing time/strength and the indicator will turnorange.

3. If the washing condition is standard, the program remains unchange andindicator turns green.

Use to start or pause thewashing process

Repeats start and pause by pushing the button.

(AUTO OFF)

Use to turn the power on or off The power goes off

automatically about 10

seconds after the wash is

finished or 10 miniutes under

PAUSE state

SPIN) DELAY (PROGRAM) Use to adjust spinning time. Spinning time can be adjusted

manually according to requirementsand the time is increasing withcertain sequence as the button is

pushed. Press "START/PAUSE" button before

adjusting the "SPIN" program.

Use to set a delayed finishing time before a leave to avoid wrinkling

The following settings are indicated asthe button is pushed3->4->5->.11->12->14->1646->48->3 HOUR

Use for selecting wash program This button allows you to select 8

different programs for different kindsof laundry and dirtiness Programselections light up in sequence asfollows:FUZZY(NORMAL) POWERWASH QUICKWASH WOOL INTELLIGENTWASH SILENT CASUAL

WASH

TUBCLEAN FUZZY(NORMAL)]

To cancel delay time, turn the powerswitch off

4. Sensor sensitivity will decrease after long-time use. Please use "TUB CLEAN" program to clean the inner and

outer tub

5. Even if the water level or temperature is changed during "STANDARD" program, the sensor is still working.

Inner optimization algorithm varies because of different models

6. Control panel may differ according to different models.

7. "Three-level" mode is available when the water level is between 3 and 8 beside "WOOL" and "TUB CLEAN"

program.

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9. Disassembly guide

Unplug before repairing and replacing

electronic components.

Electrostatic Cautions

Chart 1

Earth wire should be connected before

troubleshooting or parts replacement. Discharging before working if possible.

Connector

PC board module

9-1. Front panel and PC board

disassembly Remove two screw caps with sharp tools;

Then remove fixed screw on front panel Push front panel to the left and fetch out Remove connectors on PC board Unload 4 screws on front panel Unload PC board module

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Back panel

9-2. Back panel, Power

cord, Inlet valve and BP

sensor Disassembly

Then remove fixed 2 screws on

back panel.

Unload back panel

Remove a fixed screw on filter.

remove power cord after

unplugging two connectors.

BP sensor

Filter

Unplug connectors on inlet valve

and then remove fixed screws onvalve.

Sub

PCB

Fetch out inlet valve. Unplug connector and pressure

tube from BP sensor.

Power Inlet

Fetch out BP sensor.

Trsional spring

Bolt Bolt

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Tub Cycle

Fixed nut Tub Cycle

Outer tubInner tub

Cutch Pivot

Connector drain hose

9-3 Back panel Disassembly

Unplug fixed screw on back panel and then

remove back panel.

9-4.Update boom components Separate top cap from the washer.As is shown, separate boom from outer tub. Do not remove the boom components and

replace it whole. Assemble according to Table below(position

and colour)

Position P/NO. PIVOT(Color )

K100 Blue

Fixed nut

Rotor Stator

Rotor nut

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9-5. Replace rotor and stator remove rotor nuts with wrench(M18)

remove and fetch out rotor as is shown.

Fixed hole

Remove fixed hole and Hydraulicconductivity board

retaining piece

Stator base

Hall element

Unplug hall element and stator connector before removing stator.

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Circlip Untighten six stator fixed screws Check the direction of inner calandria

circlip.

Tighten stator with handles and removethe last screw.

Hallelement

Rtaining piece stator base

Pay attention to the wire statue in case of

noise.

9-6.Replace Clutch ComponentsRemove 9 fixed screws on clutch and fetch

out.

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10. Test runningApplied model: T8504DE

Water test mode Use test program and press DELAY,RINSEand POWER together under no load and

water level around 28L . All the indicators are on under TEST mode. Press START/PAUSE to test following items.

Number Test method LED display Test items

1 Initial status

Alternation display of Version U: 00

and water level frequency

Water level sensor abnormal

displayPE

All the indicators are

on

Water level frequency

is 218-250

2 Press one time Display 1 Test Alpha stream

3 Press twice Display 2 Alpha stream stops

4 Press three times Display hardness valueHardness value is

0-255

5 Press four times Display 4 Drain

6 Press five times Automatic switch is off All indicators are off

Anhydrous test mode Use test program and press DELAY,RINSEand POWER together under no load and no

water.

Test following items under TEST mode.

Number Test method LED display Test items

1 Initial status Display TS

2Press WASH and then press

START/PAUSEDisplay 20

Check if it is under normal

WASH condition

3 Press POWER/AUTO OFF Automatic switch is off All the indicators are off

4 Press combination button again Display TS

Press SPIN and then press

START/PAUSE5 Display 10

Check if it is under normal

SPIN condition.

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11. Troubleshooting11-1.Check the problem against the list bellows

Symptom Error

Message

Check up Check up

Water supply failure Is the water tap shut off?

Is the water supply cut off

Is the water tap, water hose or inlet valve

clogged?

Is the connector connected?

Drainage Failure Is the drain hose positioned correctly?

Is the drain hose bent or placed too high?

Is the internal part of the hose clogged?

Spin failure Is the laundry evenly balanced?

Is the washing machine placed on a flat

surface?

Is too much detergent used?

Door(Lid ) open Is the lid closed?

Internal sensing

failure

Overflow failure

Electric failure

see detailed information later

Power failure

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11-2. Display troubleshooting according to errors

Problems Reasons Possible causes Solution measures

Water

supply

Sensor null water level is under

26.0khz when watering for 12

minutes.

Sensor the water level remains

unchanged every 5 minutes with

water supply above null water level.

water tap is shut off

water supply is cut off

Inlet valve is clogged

Connector is installed

improperly.

Connection error of inlet

valve six-leg connector

and sub PC board.

Turn on water tap

Wait for water supply

Clean or replace filter

Connect connectors

properly

As above

drainage Water does not drain within 12

minutes.

Sensor water level is under 25.7khz for

6 times during SPIN with water.

Is the drain hose

positioned correctly?

Is the drain hose

clogged with impurities.

Is the internal part of

the hose clogged

Height of drain hose

should be less than 6 cm

from the floor.

Remove any foreign

objects inside pump.

Replace the drain motor

or connect connectors

properly.

Unbalance Three open circuits occur during

SPIN due to clothing placed

unevenly.

laundry in the tub is

placed unevenly.

The washer is placed on

an un-flat surface.

Place the laundry

evenly

Adjust Adjustable Legs

Door(Lid)

Open

Lid is open during SPIN and WASH

Continuous Alarm

Lid is open during SPIN

Process.

Lid is open during

WASH PROCESS

Connection error of PC

board connectors.

Close lid

Close lid

Connect connectors

properly.

Check over

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Problems Reasons Possible causes Solution measures

Internal

sensing

failure

Water level switch is

close

Connection error of water level

switch or eight-leg PC board

connector

Air chamber or hose is clogged.

Water level switch is damaged

Connect connectors properly

Fix air chamber and remove

foreign objects.

Replace water level switch

Overflow

failure

Check if the leakage or drain

hose height extends 6cm

from the ground.

Check if outer tub pore or air

tube is clogged.

Check if there is leakage in

pores air tubes or connectors

Place drain hose 6cm

underneath.

Replace water level switch

Motor

failure

Connection error of Hall

element or eight-leg PC board

connector

Connection error of Motor

stator or Yellow 3-leg PC board

connector

Hall element is damaged

Stuck by clutch

Connect connectors properly

replace stator

replace clutch

replace PC board

Clutch

failure

Drain motor connector looses Connect connectors properly

Connector output voltage is

abnormal.

Replace PC board

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12. Maintenance Guide12-1.Common washing problemsMany washing problems involve poor soil&stain removal, residues of lint and scum, and fabric

damage. For satisfactory washing results, follow these instructions.

WASH PROBLEMProblems Possible causes Solution& Preventive Measures

Poor soil removal Not enough detergent Wash water temperaturetoo low Overloading the washer Incorrect wash cycle Incorrect sorting Do not pretreat stain

Use correct amount of Detergent for load size, amountof soil and water Hardness.

Use WARM or HOT water for normal soil. DifferentWater Temperature may be required according to Soiltype.

Reduce load size Wash with POWER cycle for heavy soiled laundry Separate heavily soiled items from lightly soiled ones.

Blue, Gray or Brownstains

Undiluted fabric softenerdispensed directly ontofabric

Rub the stain with bar soap. Wash. Do not overfill fabric softener dispenser and do not pour

liquid fabric directly onto fabric. Black or gray markson clothes

A buildup caused by theinteraction of fabricsoftener and Detergentcan flake off and markclothes.

Not enough detergent

Use correct amount of detergent for load size, amount ofsoil and water hardness.

Yellow or brown ruststains

Iron or manganese inwater supply, water pipes Not enough detergent

To restore discolored load of whites, use rust removersafe 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 clearlines.

Lint Incorrect sorting Tissues left in pocket overloading the washer

Wash lint givers eg towels, flannelette sheets, separatelyfrom lint collectors eg synthetic fabrics

Remove tissues in pockets before wash. See attentionsfor sorting and caring before loading.

Do not overload the washerResidue or detergent Overloading the washer

Undissolved detergent Use too much Detergent

Do not overload the washer Some Detergents need to be pre-dissolved, check the

Detergent instructions. Try pre-dissolving theDetergent in warm water.

Increase Water Temperature using HOT water safe forfabric. Use proper amount of Detergent.

Holes, tears, or snags Incorrect use of chlorine bleach Unfastened zippers,

hooks, buckles Ribs, tears and brokenthreads

Never pour chlorine bleach directly on fabric Fasten zippers, hooks, and buckles

Overloading the washer Degradation of fabric

Remove objects in pockets Do not overload the washer.

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12-2. How to diagnose and maintain according to symptoms

1) Power Failure

Where, what and how Check resultsPossible

reasonsSolution measures

Power

Yes Electric

problems

1. Check if the socket is in poor

contact.

Replace plugs

Normal None2. measure voltage

0V Power

supply

Contact Power Supply Bureau

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2) Display problem

Where, what and how Check results Possible reasons Solution measures

Main voltage

1. measure main voltage Less than 85% of normal

voltage

Low voltage

Because of low voltage

supply. Please use

transformer if voltage is

keeping low.

2. measure external insert

row voltage if main

voltage is normal.

Less than 85% of normal

voltage

Wire is too small or there

are too many

connections on insert

row.

Use transformer

PC board

1. LED damage

2. LED drive circuit

damage

3. Chips damage

PC board damage

Replace PC board

3) Restart during working

Where, what and how Check results Possible reasons Solution measures

Main voltage

1. measure plug voltage

during working

Less than 80% of normal

voltage

Main voltage is too low or

wire size is too small.

Because of low voltage

supply and please use

suitable wire.

2. restart fault repeats

during special periods

Temporary voltage surge Because of environmental

condition(high-frequenc

y voltage around)

3. check if there is voltage

change.(such as flashing

lights)

Because of power supply

environment

PC board Replace PC board

1. It must be PC board

fault if there is no

main voltage fault.

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4) No water supplyCheck Check results Possible reasons Solution measures

Inlet valve

1 Water is not flowinginto inner tub and

there is current flow

though inlet valve is

working.

1) Check if water tap isclose.

Close Close Explanation

2) check if the tap isopen

No Use error Open water tab

3)remove inlet valve and checkfilter if problems are not

mentioned above.

Filter is clogged No cleaning Use a brush to clean thefilter and filter should be

cleaned regularly.

3) check whethermembrane hole is

clogged with foreign

objects or piston

inside valve is locked

if problems are not

mentioned above.

Inlet valve fault Replace inlet valve

2 If inlet valve is notworking and there is

no current sound

during water supply.

1) Check if connectorsare not connected or

connected unproperly.

Poor connection Connection fault Connect again or

implement

troubleshooting caused by

poor connection.

2) Check inlet valveresistance

Not between 0

81 2K

Coil is cut off Replace inlet valve

Pressure sensor

1 If error message PE is

displayed: sensor fault.

PEerror display Connectors do not

connect or harness, coil is

cut off.

Connect connectors or

replace harness. If coil is

cut off, replace the sensor.2 Check BP sensor (pressure

sensor) frequency with no

load and no water supply.

Less than 20KHz B P sensor fault Replace B P sensor fault

Yes Replace PC boardPC board

1 If inlet valve and sensor have

no fault, check the PC

board.

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5) Continuous or intermittent water supply

Check Check results Possible reasons Solution measures

Incorrect installation/water

leakage

1 Check if drain hose is

placed on the floor.(Pump

model)

Yes Incorrect installation Drain hose should be

hang over standpipe or

wash tub. Replace parts.

2 Check leakage place Water leakage from

some parts

Parts fault Repair the parts

Pressure sensor

1 Check if wave wheel

rotates with no water supply.

No No water pressure sensor Check if pressure sensor

pipe is broken and repair

it.

2 Check if air hole is

clogged there is no sensor

fault.

Yes Air hole is clogged Repair air hole

Inlet valve

1 Is there water supply

under no power(power

is off)?

Yes Inlet valve fault Replace inlet valve

PC board

1 Press POWER and there

is water supply

immediately before

START/PAUSE

pressed.

Short-circuit of controlled

silicon

Replace PC board

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6) Display LE and out of work


1 Check connectors Poor connection Connection fault Connect again or

implement

troubleshooting caused by

poor connection.

2 Check rotor magnet Cracked Replace rotor

3 Measure if resistance

between two legs of stator

connector is between

515 .

Yes

No

None

Stator fault Replace stator

Normal

Abnormal

None

Hall element fault

4 Check Hall element

Replace Hall element

5 It must be PC board

fault if fault is not

mentioned above.

Replace PC board

7) Power failure


Main voltage

Input voltage is abnormal

caused by interference.

Input voltage fault Explanation

( high-frequency device

around washer)

Automatic power relay orPC board

1 Check if power is

off automatically when

unplugging power cord

during power is on.

2 There must be PC

board fault if power is off

immediately when power

is on and power switch is

under good condition.

Power is cut off

immediately.

Power switch fault Replace PC board

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8) Undrained


Drain motor

Yes Clogged with foreign

objects

1 Check if there is

working sound of drain

motor.

Unplug drain valve and

remove foreign objects

2 Measure resistance if

there is no working

sound

Drain motor coil is cut off Replace drain motor

Connector fault Connector fault Repair connector3 Check connectors if

there is no working sound

and resistance is normal. No Connector fault PC board fault Replace PC board

Drain hose

Winded Installation problem Install it again to avoid

winding

1 Check if the space is

too small to place

drain hose or hose is

winded


folded or clogged

with foreign objects.

Clogged Drain hose is clogged Remove foreign objects or

install it again to avoid

winding.

9) Drain out of drainage time


Clogged with foreign

objects

Remove foreign objects

Drain valve shell

1 Check whether rubber

bellows are deformed

or there are foreign

objects in drain valve

components if keeping

draining.

Deformation of rubber

bellows

Deformation of rubber

bellows

Replace rubber bellows

PC board

1 Check if drain motor or

drain pump runs

immediately when

power is on.

Yes

PC board fault

Replace PC board

Drain hose


properly installed. The

discharge height should

be approximately0.9-1.2m from the floor.

less than suggested height

Incorrect installation

Place the outlet of drain

hose 0.9-1.2m from the

floor.

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10) Drainage fault during drainage time


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13. Disassembly diagrams and Parts list

Roof module

Body module

Inner tubmodule

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13-2.The Exploded View Of Cabinet Assembly

F070

F020

F000

F001

F023

F023

F024

F090

3 8

F002

F003

F004

F005

F090

F080

F040

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13-3.The Exploded View Of Tub Assembly

K064

K000

K021

K020

K250

K061

K110

NATURAL

K200

K210

K201

K305

K300

K340

K290

K240

K050

K063

K062

K060

K040

K012

K090

K140

K370

K230

K270

K005

K011

K100

K004

K140

K270For PumpFor Pump

tw8503dpe

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