Bosch WTA4410US Einrichtungshandbuch

Repair instractions

1SAFETY ........................................................ 2

1.1 SAFETY................................................................................ 2

1.3 EEC ...................................................................................... 3

2INSTALLATION............................................ 5

2.1 Set-up / Installation............................................................. 5

3OPERATION................................................. 6

3.1 Control Panel....................................................................... 6

3.2 Disassembly ........................................................................ 7

3.3 Optimisation buttons optional ........................................... 8

4COMPONENTS............................................. 9

4.1 Power module (optional) .................................................... 9

4.2 Program – Residual moisture ............................................ 9

5FUNCTIONS ............................................... 10

5.1 Removal of safety temperature regulator KI01............... 10

5.2 Removal of safety temperature regulator from KI02..... 11

6REPAIR....................................................... 12

6.1 Facia Panel ........................................................................ 12

6.2 Door ................................................................................... 13

6.3 Interior and outer door ..................................................... 13

6.4 Front Panel ........................................................................ 14

6.5 Bearing plate ..................................................................... 16

6.6 Removal of Drum interior lighting (Optional) ................. 17

6.7 Motor.................................................................................. 18

6.8 Belt removal KI01.............................................................. 19

6.9 Belt Tension adjuster ....................................................... 19

6.10 Removing the Ki03 belt .................................................... 20

6.11 Heating element................................................................ 22

6.12 Disassembly safety temperature regulator KI01............ 23

6.13 Removal of safety temperature regulator KI02 .............. 24

6.14 Removing temperature regulator exhaust air ................ 25

6.15 Drum bearings .................................................................. 26

6.16 Diagnostic-repair tools..................................................... 27

7FAULT DIAGNOSTICS...............................28

7.1 Time jumps........................................................................ 28

7.2 Odour................................................................................. 29

7.3 Leaks ................................................................................. 29

8TECHNICAL SPECIFICATIONS.................30

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1 SAFETY

1.1 SAFETY

DANGER!

Repairs may only be carried out by an electrical specialist!

Inappropriate repairs may cause danger to the user or cause damage

for the user!

To avoid the danger of electric shock, observe the following advice at

all times:

Housing and frame may be live as a result of a fault!

Dangerous body currents may flow as a result of touching live

components within the appliance!

Disconnect the appliance from the mains before repair!

An earth leakage circuit breaker must always be used when testing

while voltage applies!

The protective conductor resistance may on no account exceed the

value given in the standard! It is crucial with respect to both personal

safety and appliance function.

Following repair, tests must be carried out according to VDE 0701 or

according to regulations specific to the country concerned!

Following repair, both function tests and leak tests must be carried

out.

WARNING!

Observe the following advice at all times:

When carrying out a measurement according to VDE 0701 using the

connecting plug, the safety test must be carried out as described in

the circuit diagrams.

Component may carry an electrostatic charge! Follow

the handling regulations

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1.3 EEC

1.1.1 Description

Electrostatically -

Endangering -

Components

1.1.2 Generally

Economy, environmental protection, control comfort, high functionality

and working reliability are realized with electrical household

appliances by the insertion of most modern electronics. This high-

quality technology requires a professional handling and a competent

specialized knowledge.

All electronic modules are equipped with components, which are

endangered by an electrostatic voltage.

1.1.3 Endangered coponents

The following elements are endangered by electrostatic voltage:

►µProcessors and IC`s

►Transistors, thyristors and Triac`s

►Diodes

1.1.4 Causes and effect

They lead an electrostatic voltage with itself:

►of up to 35,000 V, if you walk over a non conductive carpet,

►of up to 12,000 V, if you walk over a non conductive PVC soil

►and of up to 1,800 V, if you sit on a padding chair.

The electrostatic voltage of their body is passed to electronics and

EEC`s affected by them, which are possibly damaged thereby.

Dead

►A defect part

►A defect component

►A defect appliance

Slightly hurt

►Damaged

►Weakened

►Early failure

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1.1.5 EEC – Notes

On all electronics modules and electronics components are

electrostatically endangered elements

For the protection of these electrostatically endangered elements the

following measures are to be met:

Noticing the appropriate marking of the components and modules:

Put on before contact and measurement of the EEC`s a electrostatics

protective system (bracelet with grounding component).

Avoid the contact of EEC`s with rechargeable plastics (foils etc.).

Components, modules and PC-boards are to be touched in such a

way that the conductive strips or connections are if possible not

affected.

EEC`s may arrive not too close at monitors and televisions.

Use for transport only conductive materials or the original packaging.

1.1.6 Electrostatics protective system

The electrostatic voltage of the body is derived over the bracelet and

the grounding component.

This takes place for safety reasons not directly, but over a resistance

combination.

The ground connection and/or protective grounding binding must be

perfect!

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2 INSTALLATION

2.1 Set-up / Installation

The appliance must be located firmly and at floor level. Use a water-

level.

A Exhaust air hose max. 2

B Power supply cable 1.5m

►The feet are adjustable for height.

►The dryer can neither be built in nor set up under an

appliance. ►Loosen the counter nuts. Adjust the feet so that the appliance

is at floor level. Then tighten the counter nuts.

►The dryer can be set up in combination with a washing

machine (front loader). To ensure a reliable connection you

have to use the original connection kits (see operation

instruction).

►The set-up place should be chosen in a way that the minimum

distance of 10 cm to the wall can be kept.

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3 OPERATION

3.1 Control Panel

A Programme selector B Programm progress indicator

C LED - Modul (Optional) D Additional funcations

E Start button

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3.2 Disassembly

►Worktop Disassembly.

►3 screws on the panel disassembly (B).

►Panel forward overboard end to upturn.

A Screws button and Modul

B Screws panel

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3.3 Optimisation buttons optional

Low heat button:

For temperature-sensitive textiles.

Lowers the temperature by reducing the heat output, the drying time is

extended simultaneously.

Signal:

For switching on the signal and drawing attention to the end of the

programme.

Start:

When a programme starts, a brief acoustic signal sounds when the

signal is switched on.

Start time delay:

The start time of the programme can be delayed up to 19 hours. A dot

flashes on the display. The selected time elapses in 1 h steps.

Programme progress indicator (status)

The programme sequence is indicated by LEDs.

Anti-crease

At the end of the 10`of colldown the program starts its anti-crease

phase. It can be interrupted by the user anytime. The Anti-crease is

limited on 60 min

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4 COMPONENTS 4.2 Program – Residual moisture

The programs "Easy care" and "Cotton / Color laundy" damp-steered

and after reaching the drying goal or the maximum running time (180

min) were terminated. A cooling phase of 10 min follows. At the end of

the cool down phase a signal of 5x1sec.sounds.

4.1 Power module (optional)

Description of function

The module contains all components, like regulation, microprocessor

and relay. It takes over functions of the control of expirations of drying,

determination of parameters as well as the control of motor and

heating.

Residual moisture:

Cotton- / Color laundry

Extra dry -4%

Conductance measurement Wardrobe dry plus -2%

The drying goal is determined by a conductance measurement. The

conductance measurement is attributed to a resistance test.

Wardrobe dry 0%

Easy dry 6%

Ironing dry 12%

Easy care

Very dry 0%

Wardrobe dry 2%

Easy dry 6%

Ironing dry 12%

Anti crease protection

The time for the “Anti crease protection” is limited on 60 min. An

prolongation time is not possible.

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5 FUNCTIONS

5.1 Removal of safety temperature regulator KI01

At the bottom channel cover the safety temperature regulator is

installed. The safety temperature regulator switches

switching off temperature: 120 °C +/- 3K

Safety temperatur by ca. 150 °C +/- 4K

A Temperature regulator processing air

B Safety temperature regulator

Hinweis

The safety disconnection may not be put back. The conversion kit

447311 must be inserted. See disassembly safety temperature

regulator KI01

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