Haier DW12-TFE1 series User manual

DISHWASHER

201 1 (Qingdao Haier Dishwasher Co.,Ltd)

DW12-TFE1

DW12-TFE2

DW1103S002V0

1

Service Manual

Issue

Rev.

Contents

1. FEATURES................................................................................................................................3

2. HOW TO READ THIS SERVICE MANUAL............................................................................... 4

3. SAFETY PRECAUTION............................................................................................................5

3-1.

AT TIME OF DELIVERY.............................................................................................................5

3-2.

DURING INSTALLATION...........................................................................................................5

4. INSTALLATION.........................................................................................................................6

4-1.

IF YOUR FAMILY INCLUDES CHILDREN

......................................................................................6

4-2.

IF A FAULT OCCURS................................................................................................................6

4-3.

WHEN DISPOSING OF OLD APPLIANCES................................................................................... 6

4-4.

POSITIONING THE APPLIANCE.................................................................................................6

4-5.

LEVELING THE APPLIANCE......................................................................................................7

4-6.

COLD WATER CONNECTION....................................................................................................7

4-7.

DRAIN HOSE CONNECTION..................................................................................................... 7

4-8.

ELECTRICAL CONNECTION.....................................................................................................8

4-9.D

ISSEMBLE AND ASSEMBLE.....................................................................................................8

5. PARTS AND FUNCTIONS ...................................................................................................... 20

5-1.

CLOSE-UP VIEW (CONTROL PANEL).......................................................................................20

5-2.

DISHWASHER INTERIOR .......................................................................................................20

6. HOW TO FILL THE SALT .......................................................................................................21

6-1.

SALT...................................................................................................................................21

6-2.

LOADING THE SALT INTO THE CONTAINER..............................................................................21

6-3.

ADJUSTING SALT CONSUMPTION...........................................................................................21

7. HOW TO FILL RINSE AID AND DETERGENT DISPENSER.................................................23

7-1.

HOW TO FILL RINSE AID........................................................................................................ 23

7-2.

HOW TO FILL DETERGENT DISPENSER...................................................................................23

8. LOADING THE DISHWASHER...............................................................................................24

8-1.

HOW TO USE THE LOWER RACK............................................................................................24

8-2.

HOW TO USE THE UPPER RACK.............................................................................................24

8-3.

SHELF.................................................................................................................................24

9. TURNING ON THE APPLIANCE ............................................................................................ 25

9-1.

SWITCHING THE DISHWASHER ON........................................................................................25

9-2.

END OF PROGRAMME ..........................................................................................................25

Model No.DW12-TFE1 DW12-TFE2

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Model No.DW12-TFE1 DW12-TFE2

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Rev.

9-3. SWITCHING THE DISHWASHER OFF......................................................................................25

9-4.

INTERRUPTING THE PROGRAMME .........................................................................................25

9-5.

CANCELLING OR MODIFYING A CYCLE ...................................................................................26

9-6.

3 IN1 FUNCTION...................................................................................................................26

9-7.

RESET DRAIN FUNCTION ......................................................................................................27

10.WASH CYCLE TABLE ...........................................................................................................28

11.FUNCTION SCHEDULE.........................................................................................................30

12. HOW TO KEEP YOUR DISHWASHER IN SHAPE............................................................... 31

12-1.

AFTER EVERY WASH .........................................................................................................31

12-2.

REMOVE THE PLUG............................................................................................................31

12-3.

NO SOLVENTS OR ABRASIVE CLEANING PRODUCTS ............................................................31

12-4.

MOVING THE APPLIANCE....................................................................................................31

12-5.

SEALS...............................................................................................................................31

12-6.

WHEN YOU GO ON HOLIDAY ..............................................................................................31

13. CLEAN AND MENTENANCE................................................................................................ 32

13-1.

OVERALL CONDITION OF APPLIANCE...................................................................................32

13-2.

DISHWASHER SALT ............................................................................................................32

13-3.

RINSE-AID.........................................................................................................................32

13-4.

FILTERS ............................................................................................................................32

13-5.

SPRAY ARMS .....................................................................................................................32

14. FAULT FINDING....................................................................................................................34

14-1.

RESOLVING MINOR PROBLEMS YOURSELF...........................................................................34

14-2.

PROBLEMS........................................................................................................................ 34

15. MAINTENANCE SERVICES AND TROUBLE SHOOTING..................................................38

15-1.

MAINTENANCE SERVICES...................................................................................................38

15-2.

TROUBLE SHOOTING..........................................................................................................38

16. ANALYSIS OF THE COMMON BREAKDOWNS..................................................................39

16-1.

DOOR SWITCH TROUBLE.................................................................................................... 39

16-2.

WATER SUPPLY TROUBLE...................................................................................................40

16-3.

DRAIN PUMP TROUBLE.......................................................................................................41

16-4.

HEATING ELEMENT TROUBLE..............................................................................................42

16-5.

WATER OVERFLOW TROUBLE .............................................................................................43

16-6.

POWER SUPPLY TROUBLE..................................................................................................44

16-7.

LEAK TROUBLE..................................................................................................................45

17. NET DIMENSION ..................................................................................................................46

18. TECHNICAL DATA................................................................................................................47

19. CIRCUIT DIAGRAM..............................................................................................................48

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Service Manual

Model No.DW12-TFE1 DW12-TFE2

Issue

Rev.

1. Features

1-1. A grade for energy consumption of European standard.

1-2. A grade for washing efficiency of European standard.

1-3. A grade for drying efficiency of European standard.

1-4. Electronic control.

1-5. Water softener for descaling.

1-6. Super-capacity for 12 settings.

1-7. 3 in 1 function(DW12-TFE2).

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Model No.DW12-TFE1 DW12-TFE2

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2. How to read this Service Manual

The symbol on the product or on its packaging indicates that this product may not be

treated as household waste. Instead it shall be handed over to the applicable collection point for

the recycling of electrical and electronic equipment. By ensuring this product is disposed of

correctly, you will help prevent potential negative consequences for the environment and human

health, which could otherwise be caused by inappropriate waste handling of this product.

For more detailed information about recycling of this product, please contact your local city office,

your household waste disposal service or the shop where you purchased the product.

Warning:

A “warning” is used when there is danger of personal injury.

Caution:

A “caution” is used when there is danger that the reader, through incorrect manipulation, may

damage equipment, loose data, get an unexpected result or has to restart (part of) a procedure.

Notice:

A “notice” provides information that is not indispensable, but may nevertheless be valuable to the

reader.

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Model No.DW12-TFE1 DW12-TFE2

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3. Safety precaution

3-1. At time of delivery

Check packaging and dishwasher immediately for signs of transport damage. If the appliance is

damaged, do not put it into use but contact your supplier or customer service without delay.

Please dispose of packaging materials properly.

3-2. During installation

Site the dishwasher and connect it up in accordance with the installation instructions.

The dishwasher must not be connected to the electricity supply while installation is being carried

out.

Ensure that the domestic wiring is properly earthed.

The mains electricity supply must conform to the details shown on the dishwasher nameplate.

Do not connect the dishwasher to the electricity supply via an extension cable.

Built-under and built-in appliances should always be installed under a continuous work surface

which is attached to the adjacent cupboards, in order to ensure that the appliance is entirely

stable.

After the appliance has been installed, the mains plug should still be easily accessible.

Not on all models:

The plastic housing on the water inlet contains an electrically operated valve. The connecting

wires are inside the inlet hose. Do not cut through this hose and do not immerse the plastic

housing in water.

During installation, the power supply cord must not be excessively or dangerously bent or

flattened.

3-3.During normal use

The dishwasher must only be used by adults for the washing of household dishes and cooking

utensils.

This appliance cannot be installed outdoor, not even if the area in which it is installed is covered

by a roof; it is also very dangerous to leave it exposed to the rain and elements.

Do not place any heavy objects or stand on the door when it is open. The appliance could tip

forward.

The water inside the dishwasher is not suitable for drinking.

Do not use solvents of any kind inside your dishwasher. They could cause an explosion danger.

Open the door very carefully if the dishwasher is operating. There is a risk of water squirting out.

Do not touch the heating element during or after a wash cycle.

Fundamental rules to follow when using the appliance:

Never touch the dishwasher when barefoot or with wet hands or feet;

We discourage the use of extension cords and multiple sockets;

If the appliance is not operating properly or maintenance must be performed, disconnect the

appliance from the power supply.

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4. Installation

4-1. If your family includes children

The appliance is not intended for use by young children or infirm persons without supervision.

Young children should be supervised to ensure that they do not play with the appliance.

Keep detergents out of the reach of children, who must also be kept away from the dishwasher

when it is open.

4-2. If a fault occurs

If the appliance malfunctions, turn off water supply to the appliance and disconnect the plug from

the wall socket. Then, consult the section entitled, "Fault finding" .If you cannot solve the problem,

contact a service center.

Only specialized personnel are authorized to make repairs.

If the supply cord is damaged, it must be replaced by a special cord or assembly available from

the manufacturer or its service agent.

To maintain the EFFICIENCY and SAFETY of this appliance, we recommend:

call only the Service Centers authorized by the manufacturer.

always use original Spare Parts.

4-3. When disposing of old appliances

Appliances which are no longer being used must be made inoperable by cutting the power supply

cord and removing the door lock.

Take the appliance to a designated waste disposal center.

Dangerous voltage

Warning

Children could get locked in the appliance (risk of suffocation) or get stuck in other

positions.

Therefore: Remove the mains plug, cut the mains wire and set aside. Damage the door

lock so that the door can no longer be closed.

4-4. Positioning the appliance

Positioning the appliance in the desired location. The back should rest against the wall behind it,

and the sides, along the adjacent cabinets or wall. The dishwasher is equipped with water supply

and drain hoses that can be positioned to the right or the left to facilitate proper installation.

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4-5. Leveling the appliance

Once the appliance is positioned, adjust the feet (screwing them in or out) to adjust the

dishwasher, making it level. In any case, the appliance should not be inclined more than 2°. If the

appliance is level, it will help ensure proper performance.

4-6. Cold water connection

Connect the water supply hose to a threaded 3/4 (gas) connector, making

sure that it is fastened tightly in place (see fig.A).

Some models are fitted with an "Aquastop" water supply hose (see fig.B)

in which the small filter is already housed in the threaded end.

If the water pipes are new or have not been used for an extended period

of time, let the water run to make sure that the water is clear and free of

impurities. If this precaution is not taken, there is a risk that the water inlet

can get blocked and damage the appliance.

Warning

The appliance is to be connected to the water mains using new hose-sets and that old

hose-sets should not be reused.

4-7. Drain hose connection

Insert the drain hose into a drain pipe with a minimum diameter of 4cm, or let it run into the sink,

making sure to avoid bending or crimping it. If necessary, fit a syphon trap (U-bend) with a

connecting piece for the drain hose (fig.C). The free end of the hose must be at a height between

40 and 100 cm and must not be immersed in water.

Attention:

The connecting piece for syphon trap (U-bend) must be securely fastened to the wall to

prevent the drain hose from moving and allowing water to spill outside the drain.

fig.A

fig.B

fig.C

MAX 100 cm

MIN 40 cm

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Service Manual

Model No.DW12-TFE1 DW12-TFE2

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4-8. Electrical Connection

After making sure that the voltage and frequency values for the current in the home correspond to

those on the rating plate (located on the stainless steel inner door of the appliance) and that the

electrical system is correct for the maximum voltage on the rating plate, insert the plug into an

electrical socket which is earthed properly (the earthing of the appliance is a safety requirement

mandated by law).

If the electrical socket to which the appliance must be connected is not appropriate for the plug,

replace the whole cable, rather than using adaptors or the like as they could cause overheating

and burns.

Caution:

The dishwasher plug must be accessible even when the appliance is installed as a built-in

unit so that maintenance can be done safely.

4-9.Dissemble and assemble

4-9-1. Tools

Screwdriver

 Dissemble and assemble for dishwasher

components

Cross-screwdriver

 Dissemble and assemble for dishwasher

components

Blade

 Unpacking

Electric drill

 Drill holes while installation

Spanner

 Combine the inlet hose

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Multimeter

 Used for measuring the PCB and Display

board

Soldering iron

 Used for Jointing the PCB and Display

board

Pliers

 Used for removing the pipe hoop and

clips

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4-9. Dissemble and assemble procedure

4-9-1.Water pressure switch disassembly

 Water pressure switch locates in the

behind of the tub on the right and is fixed in

straight pole.

 Put the guiding groove up until to the top

which is ringent.

 Press the wedge of the water pressure

switch until it comes out of slot with hands.

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 Press the pinchcock at full tilt with your

hands and then pull the pipe out.

 With stand the raised parts of the 1/4S

quick connect termianl with thumb and then

pull it out.

 Change the old water pressure switch into a

new one.

 Insert cable line in, connection method is

just like the picture on the left.

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 Connection method: there are several

corresponding number marks on the

component at the position of 1,2,3 showing

on the left picture.

 Connect the pipe together. Attention: pipe

must be put on the interspaces between

vent hole and the tub.

 Put the pressure switch wedge into the

large ringent slot part and then push it

until to the slot bottom.

 Put the pipe to the smaller ringent place of

its bottom and then the installation is

completed.

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Model No.DW12-TFE1 DW12-TFE2

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4-9-2.Detergent dispenser disassembly

 Open the door, disassemble the outer door

(Accord to the disassembly step)

 Close the door, use screwdriver to drive the

6 screws of Detergent Dispenser off, pull

the wire out, then open the door, and get

the Detergent Dispenser off.

4-9-3.Baseboard disassembly

 Lie the machine down, use ross-screwdriver

to drive two screws on baseboard off

 Use screwdriver to push the baseboard off

the support foot, don’t put big force to avoid

break the stator.

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4-9-4.Left/right side plate and baseboard disassembly

 Disassemble the baseboard(Pls find the pic

of baseboard)

 Use cross-screwdriver to drive two screws

off the side panel

4-9-5 Side panel disassembly

 Disassemble the Complete top(pls follow

the disassembly step), use the

cross-screwdriver to drive two screws which

are on left top of machine, off side panel

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 Use the cross-screwdriver to drive five

screws which are in left back of machine, off

the right side panel

 Open the door, use the cross-screwdriver to

drive four screws which are in left front, off

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4-9-6 Sump disassembly

 Disassembly the drain pump refer to with

the way required for the drain pump.

 Disassembly the wash pump refer to with

the way required for the wash pump.

 Remove the rubber pipe of the sump

 Remove the transparent pipe of the water

level switch.

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Service Manual

Model No.DW12-TFE1 DW12-TFE2

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 Disassembly the temperature sensor with

black plastic bracket

 screw the Ring nut for sump fastening out

with an anticlockwise way .

 Sump are dissembled completly

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4-9-7. Water softer disassembly

 Lay the dishwasher on the floor, then

remove the bottom cover, pull out the

connector of the salt adding valve and the

low salt switch

 Remove the three clips for fixing the rubber

connect pipe, then pull out the rubber pipe

 Open the out door, you can see the salt

adding cover, then circumrotate the cover

anticlockwise and screw it down.

 Circumrotate the fixing set of the water

softer anticlockwise, then screw id

down(you can use the disassembly tool to

operate)

 Then take the water softer down

accordingly.

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Rev.

4-9-8.Heater disassembly

 Remove the two self-drilling bolts for fixing

the heater bracket from the middle bar, then

remove the heater.

 Pull out the three connector of the heater.

 Remove the pipe hoop.

 Remove the connector pipe of the hot pump

and the middle hot pump ,then can take the

heater down.

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