Bosch WTH852B8DN User manual

en Installation and operating instructions
Tumble dryer
WTH852B8DN

2
Your new tumble dryer
You have opted for a tumble dryer
manufactured by Bosch.
Please take a few minutes to read and
become familiar with the advantages of
your tumble dryer.
To meet the high quality demands
required by Bosch, every tumble dryer
that leaves our factory is carefully
checked to ensure that it functions
correctly and is in perfect condition.
For more information on our products,
accessories, replacement parts and
services, see our website www.bosch-
home.com or contact our Customer
Service centres.
If the operating and installation
instructions describe different models,
any differences will be pointed out at the
relevant points in the text.
Read these operating and installation
instructions before operating the tumble
dryer.
Display rules
:Warning!
This combination of symbol and signal
word indicates a possibly dangerous
situation. Not heeding the warning can
cause death or injuries.
Caution!
This signal word indicates a possibly
dangerous situation. Not heeding the
caution can cause property and/or
environmental damage.
Note/tip
Information about the optimum use of
the appliance/any other useful
information.
1. 2. 3. / a) b) c)
The steps are represented by numbers
or letters.
■/ -
Lists are represented by a small box or
a dash.

en
3
Contents en Installation and operating instructions
8Intended use. . . . . . . . . . . . . . . . .4
(Safety instructions . . . . . . . . . . .4
Children/people/pets . . . . . . . . . . . . . 4
Installation. . . . . . . . . . . . . . . . . . . . . . 6
Operation . . . . . . . . . . . . . . . . . . . . . . 8
Cleaning/Maintenance . . . . . . . . . . . 10
7Environmental protection . . . . .12
Packaging/old appliance . . . . . . . . . 12
Coolant . . . . . . . . . . . . . . . . . . . . . . . 12
Energy-saving tips. . . . . . . . . . . . . . . 12
5Installation and connection . . .13
Scope of delivery . . . . . . . . . . . . . . . 13
Installing and connecting
the dryer . . . . . . . . . . . . . . . . . . . . . . 13
Optional accessories . . . . . . . . . . . . 15
Transport and frost protection . . . . . 15
ŒDraining the
condensation water . . . . . . . . . .16
YThe main points in brief . . . . . .18
*Getting to know
your appliance . . . . . . . . . . . . . .19
Dryer. . . . . . . . . . . . . . . . . . . . . . . . . 19
Control panel . . . . . . . . . . . . . . . . . . 20
Display panel . . . . . . . . . . . . . . . . . . 21
ZLaundry. . . . . . . . . . . . . . . . . . . .22
Preparing the laundry . . . . . . . . . . . . 22
Sorting washing according to: . . . . . 22
/Programmes and buttons . . . . .23
Programmes . . . . . . . . . . . . . . . . . . . 23
Buttons . . . . . . . . . . . . . . . . . . . . . . . 25
1Operating the appliance . . . . . . 26
Loading laundry and
switching on the dryer . . . . . . . . . . . .26
Setting a programme. . . . . . . . . . . . .26
Starting the programme . . . . . . . . . .26
Programme sequence . . . . . . . . . . . .27
Changing the programme
or adding laundry . . . . . . . . . . . . . . .27
Cancelling the programme . . . . . . . .27
Programme end . . . . . . . . . . . . . . . .27
Removing laundry and
switching off the dryer . . . . . . . . . . . .27
Emptying the condensate
container . . . . . . . . . . . . . . . . . . . . . .28
Clean the fluff filter . . . . . . . . . . . . . .29
MSignal setting. . . . . . . . . . . . . . . 30
>Noises. . . . . . . . . . . . . . . . . . . . . 31
DCleaning . . . . . . . . . . . . . . . . . . . 31
Cleaning the dryer and
the control panel . . . . . . . . . . . . . . . .31
Cleaning the moisture sensor . . . . . .32
Cleaning the EasyClean filter. . . . . . .32
3Faults and what
to do about them . . . . . . . . . . . . 34
[Consumption values. . . . . . . . . 36
Consumption values table . . . . . . . . .36
Most efficient programme
for cotton fabrics . . . . . . . . . . . . . . . .36
JTechnical data . . . . . . . . . . . . . . 37
JAfter-sales service . . . . . . . . . . 38

en Intended use
4
8Intended use
Intendeduse ■This appliance is intended for private
domestic use only.
■Do not install or operate this
appliance anywhere that is liable to
experience frost and/or outdoor
conditions. There is a risk that the
appliance will be damaged if
residual water in it freezes. If hoses
freeze up, they may crack/burst.
■This appliance must only be used for
drying and freshening up domestic
laundry, consisting of items that have
been washed with water and are
suitable for tumble drying (see label
on item). Using the appliance for any
other purpose is outside of the
scope of its intended application and
is forbidden.
■This appliance is intended for use up
to a maximum height of
4000 metres above sea level.
Before you switch on the appliance:
Check that there is no visible damage to
the appliance. Do not operate the
appliance if it is damaged. Should you
have any problems, please contact your
specialist dealer or our customer
service.
Read and follow the operating and
installation instructions and all other
information provided with this appliance.
Retain the documents for subsequent
use or for subsequent owners.
(Safety instructions
Safetyinstructi ons The following safety information
and warnings are provided to
protect you from injury and to
prevent material damage to
your surroundings.
It is nevertheless important to
take the necessary precautions
and to proceed with care when
installing, maintaining, cleaning
and operating the appliance.
Children/people/pets
:Warning
Risk of death!
Children and other people who
are unable to assess the risks
involved when using the
appliance may injure
themselves or may find
themselves in life-threatening
situations. Therefore please
note:
■The appliance may be used
by children over the age of 8
years and by persons with
reduced physical, sensory or
mental capacity or by
persons with a lack of
experience or knowledge as
long as they are supervised
or have received instruction
on how to use the appliance
safely and they have
understood the potential
risks of using the appliance.
■Children must not play with
this appliance.

Safety instructions en
5
■Do not allow children to
clean or maintain this
appliance unsupervised.
■Keep children under 3 years
and pets away from this
appliance.
■Do not leave the appliance
unattended when children or
other people who are unable
to assess the risks are in the
vicinity.
:Warning
Risk of death!
Children may lock themselves
inside appliances and find
themselves in a life-threatening
situation.
■Do not position the
appliance behind a door, as
this may obstruct the
appliance door or prevent it
from opening completely.
■Once an appliance has
reached the end of its life,
pull the mains plug from the
socket before severing the
mains cable, and then
destroy the lock on the
appliance door.
:Warning
Risk of suffocation!
If allowed to play with the
packaging/plastic film or
packing components, children
may become caught in these or
pull them over their heads and
suffocate.
Keep packaging, plastic film
and packing components away
from children.
:Warning
Risk of poisoning!
Detergents and care products
may result in poisoning if
consumed.
If accidentally swallowed, seek
medical advice. Keep
detergents and care products
out of the reach of children.
:Warning
Eye/skin irritation!
Contact with detergents or care
products may cause eye/skin
irritation.
Rinse eyes/skin thoroughly if
they/it come(s) into contact
with detergents or care
products. Keep detergents and
care products out of the reach
of children.

en Safety instructions
6
Installation
:Warning
Risk of electric shock/fire/
material damage/damage to
the appliance!
If the appliance is not installed
properly, this may lead to a
dangerous situation. Ensure
the following:
■The mains voltage on your
power socket must match
the rated voltage specified
on the appliance
(identification plate). The
connected loads and the
required fuse protection are
specified on the identification
plate.
■The appliance must only be
connected to alternating
voltage via a protective
contact socket that has been
correctly installed. This plug
socket must be freely
accessible at all times.
■The mains plug and the
protective contact socket
must match and the earthing
system must be correctly
installed.
■The installation must have an
adequate cross section.
■The mains plug must be
freely accessible at all times.
If this is not possible, in
order to comply with the
relevant safety regulations, a
switch (2-pole switch-off)
must be built into the
permanent installation in
accordance with electrical
installation regulations.
■If using a residual current
circuit breaker, only use one
that bears the following
mark: z. The presence of
this mark is the only way to
be sure that it fulfils all the
applicable regulations.
:Warning
Risk of electric shock/fire/
material damage/damage to
the appliance!
If the appliance's mains cable is
altered or damaged, this may
result in electric shock, short
circuiting or fire due to
overheating.
The mains cable must not be
kinked, crushed or altered, and
must not come into contact with
any heat sources.

Safety instructions en
7
:Warning
Risk of fire/material damage/
damage to the appliance!
The use of extension cords or
power strips may result in fire
due to overheating or short
circuiting.
Connect the appliance directly
to an earthed socket that has
been correctly installed. Do not
use extension cords, power
strips or multi-way couplers.
:Warning
Risk of injury/material
damage/damage to the
appliance!
■The appliance may vibrate or
move when in operation,
potentially resulting in injury
or material damage.
Place the appliance on a
clean, even, solid surface
and, using a spirit level to
guide you, level it with the
screw-in feet.
Risk of injury/material damage/damage to the appliance!
■Incorrectly placing (stacking)
this appliance on top of a
washing machine may result
in injury, material damage
and/or damage to the
appliance.
If this appliance is to be
placed on top of a washing
machine, the washing
machine must be of at least
the same depth and width as
the appliance, and it must be
secured in place with the
appropriate connection set if
available. ~Page 15
The appliance MUST be
secured with this connection
set. Stacking the appliance
in any other way is forbidden.
Risk of injury/material damage/damage to the appliance!
■If you take hold of any of the
appliance's protruding parts
(e.g. the appliance door) in
order to lift or move it, these
parts may break off and
cause injury.
Do not take hold of any of
the appliance's protruding
parts in order to move the
appliance.

en Safety instructions
8
:Warning
Risk of injury!
■The appliance is very heavy.
Lifting it may result in injury.
Do not lift the appliance on
your own.
Risk of injury!
■The appliance has sharp
edges on which you could
cut your hands.
Do not take hold of the
appliance by its sharp
edges. Wear protective
gloves to lift it.
Risk of injury!
■If the hoses and mains
cables are not correctly
routed, they may constitute a
tripping hazard, which may
result in injury.
Route hoses and cables
such that they do not
constitute a tripping hazard.
Operation
:Warning
Risk of explosions/fire!
Laundry that has come into
contact with solvents, oil, wax,
wax remover, paint, grease or
stain remover may ignite when
dried in the machine, or even
cause the appliance to explode.
Therefore please note:
■Rinse the laundry thoroughly
with warm water and
detergent before drying it in
the machine.
■Do not place laundry in this
appliance to be dried if the
laundry has not been
washed first.
■Do not use the appliance if
industrial chemicals have
been used to clean the
laundry.
:Warning
Risk of explosions/fire!
■If there is any residual
material left in the fluff filter,
this may ignite when drying
is in progress, or even cause
the appliance to catch fire or
explode.
Clean the fluff filter regularly.
Risk of explosions/fire!
■Certain objects may ignite
when drying is in progress,
or even cause the appliance
to catch fire or explode.
Remove any lighters or
matches from pockets on
items of clothing.
Risk of explosions/fire!
■If there is coal dust or flour in
the air around the appliance,
this may cause an explosion.
Make sure that the area
around the appliance is kept
clean when it is in operation.
:Warning
Risk of fire/material damage/
damage to the appliance!
If a program is terminated
before the drying cycle has
finished, this prevents the
laundry from cooling down
sufficiently and may cause the
laundry to ignite, or may result
in material damage or damage
to the appliance.

Safety instructions en
9
■During the last part of the
drying cycle, the laundry in
the drum is not heated
(cooling cycle). This is to
ensure that it remains at a
temperature at which it will
not be damaged.
■Do not switch off the
appliance before the drying
cycle has finished unless you
remove all items of laundry
from the drum immediately
and spread them out (to
dissipate the heat).
:Warning
Risk of poisoning/material
damage!
Condensation water is not
suitable for drinking and may
be contaminated with lint.
Contaminated condensation
water may be hazardous to
health and may cause material
damage.
Do not drink or reuse.
:Warning
Risk of poisoning!
Poisonous fumes may be given
off by cleaning agents that
contain solvents, e.g. cleaning
solvent.
Do not use cleaning agents that
contain solvents.
:Warning
Risk of injury!
■If you support your weight/sit
on the appliance door when
it is open, the appliance may
tip over, which may result in
injury.
Do not support your weight
on the appliance door when
it is open.
Risk of injury!
■If you climb onto the
appliance, the worktop may
break, which may result in
injury.
Do not climb onto the
appliance.
Risk of injury!
■If you reach into the drum
while it is still rotating, you
risk injuring your hands.
Wait until the drum has
stopped rotating.
Caution!
Material damage/damage to
the appliance
■If the amount of laundry in
the appliance exceeds its
maximum load capacity, it
may not be able to operate
properly, or this may result in
material damage or damage
to the appliance.
Do not exceed the maximum
load capacity of dry laundry.
Make sure you comply with
the maximum load capacities
specified for each of the
programs. ~Page 23
Material damage/damage to the appliance

en Safety instructions
10
■If you operate the appliance
without a fluff catcher (e.g.
fluff filter, fluff depot,
depending on appliance
specifications), or if the fluff
catcher is incomplete or
defective, this may result in
damage to the appliance.
Do not operate the appliance
without a fluff catcher, or with
a fluff catcher that is
incomplete or defective.
Material damage/damage to the appliance
■Light objects such as hair
and lint may be sucked into
the air inlet when the
appliance is in operation.
Keep these away from the
appliance.
Material damage/damage to the appliance
■Foam and foam rubber may
deform or melt if dried in the
appliance.
Do not dry laundry items that
contain foam or foam rubber
in the appliance.
Material damage/damage to the appliance
■If you pour the wrong
quantity of detergent or
cleaning agent into the
appliance, this may result in
material damage or damage
to the appliance.
Use detergents/care
products/cleaning agents
and softeners in accordance
with the manufacturers'
instructions.
Material damage/damage to the appliance
■If the appliance overheats, it
may not be able to operate
properly, or this may result in
material damage or damage
to the appliance.
Make sure that the
appliance's air inlet is never
obstructed when the
appliance is in operation,
and that the area around the
appliance is adequately
ventilated.
Cleaning/Maintenance
:Warning
Risk of death!
The appliance is powered by
electricity. There is a risk of
electric shock if you come into
contact with live components.
Therefore please note:
■Switch off the appliance.
Disconnect the appliance
from the power supply (pull
out the plug).
■Never take hold of the mains
plug with wet hands.
■When removing the mains
plug from the socket, always
take hold of the plug itself
and never the mains cable,
otherwise this may damage
the mains cable.
■Do not make any technical
modifications to the
appliance or its features.

Safety instructions en
11
■Repairs and any other work
on the appliance must only
be conducted by our
customer service or by an
electrician. The same applies
for replacing the mains cable
(when necessary).
■Spare mains cables can be
ordered from our customer
service.
:Warning
Risk of poisoning!
Poisonous fumes may be given
off by cleaning agents that
contain solvents, e.g. cleaning
solvent.
Do not use cleaning agents that
contain solvents.
:Warning
Risk of electric shock/material
damage/damage to the
appliance!
If moisture penetrates the
appliance, this may cause it to
short circuit.
Do not use a pressure washer,
steam cleaner, hose or spray
gun to clean your appliance.
:Warning
Risk of injury/material
damage/damage to the
appliance!
The use of spare parts and
accessories supplied by other
brands is dangerous and may
result in injury, material damage
or damage to the appliance.
For safety reasons, use
genuine spare parts and
accessories only.
Caution!
Material damage/damage to
the appliance
Cleaning agents and agents for
pretreating laundry (e.g. stain
removers, prewash sprays, etc.)
may cause damage if they
come into contact with the
surfaces of the appliance.
Therefore please note:
■Do not allow these agents to
come into contact with the
surfaces of the appliance.
■Clean the appliance with
nothing but water and a soft,
damp cloth.
■Remove any detergent,
spray or other residues
immediately.

en Environmental protection
12
7Environmental
protection
Environmentalprotecti on Packaging/old appliance
Coolant
The dryer's heat exchanger contains
fluorinated greenhouse gas in a
hermetically sealed unit.
Dispose of the dryer properly.
Energy-saving tips
■Spin the laundry before drying.
The drier the laundry, the shorter
the drying time will be, thus
consuming less energy.
■Load the dryer with the maximum
load.
Note: Do not exceed the maximum
load for the programs, as this
prolongs the drying time
and increases energy consumption.
■Ventilate the room and keep the air
inlet on the dryer free to ensure air
exchange.
■Clean the fluff filter after each drying
cycle. If the fluff filter is dirty,
the drying time is prolonged
and energy consumption is
increased.
■Energy saving mode: If the dryer is
not operated for a prolonged period,
it automatically switches off before
the program starts and when
the program has ended to save
energy. The display panel
and indicator lamps go off after
a few minutes and the Start button
flashes. To activate the lighting,
press any button, open or close
the dryer door or turn the program
selector.
)Dispose of packaging in an
environmentally-responsible
manner.
This appliance is labelled in
accordance with European
Directive 2012/19/EU
concerning used electrical and
electronic appliances (waste
electrical and electronic
equipment - WEEE).
The guideline determines the
framework for the return and
recycling of used appliances
as applicable throughout the
EU.
Greenhouse gas: R134a
Filling quantity (kg): 0.330
Total GWP (tCO2): 0.472

Installation and connection en
13
5Installation and
connection
Installationandconnection Scope of delivery
■Dryer
■Installation and operating
instructions
■Basket for woollens*
■Condensation drain*
Installing and connecting the
dryer
:Warning
Risk of death!
There is a risk of electric shock as the
dryer is operated with electricity.
■Check the dryer for visible damage.
You must not operate the dryer if it is
damaged.
■Before connecting the dryer to the
power supply, ensure that the
electric voltage specified on the
rating plate matches the voltage of
your socket.
■Only use residual current circuit
breakers with the following symbol:
z.
■Ensure that the mains cable is not
kinked or trapped and that it does
not come into contact with heat
sources or sharp edges.
:Warning
Children could lock themselves in the
dryer, putting their lives at risk!
Do not set up the dryer behind a door
or sliding door as this may obstruct the
dryer door or prevent it from opening.
Caution!
Risk of injury
■As the dryer is heavy, you could
injure yourself by trying to lift it.
Do not lift the dryer on your own.
■You could cut your hands on the
sharp edges of the dryer. Do not
hold the dryer by the sharp edges.
■Protruding parts on the dryer may
break off when it is lifted or pushed.
Do not move the dryer by holding on
to protruding parts.
Caution!
Risk of material damage to the dryer or
fabrics
■Check the dryer for damage caused
during transportation. Never operate
a dryer if it is damaged.
■Any residual water in the dryer may
freeze and damage the dryer. Do not
install the dryer in rooms that are at
risk of frost.
* Depending on the model

en Installation and connection
14
During installation ensure that:
■The dryer is placed on a clean, level
and firm surface,
■The mains plug can be accessed at
all times,
■The air inlet on the dryer is kept clear
and there is sufficient ventilation,
■The area around the dryer is kept
clean and
■The dryer is levelled using the
threaded feet.
Note: Check the alignment of the
appliance with a spirit level and
correct if necessary. Change the
height by turning the appliance feet.
All appliance feet must stand firmly
on the ground.
Incorrect alignment may cause high
noise levels, vibrations and improper
movement of the drum.
Note: If in doubt, have the appliance
connected by a specialist.

Installation and connection en
15
Optional accessories
Order optional accessories*from
the after-sales service:
■Washer-dryer stack connection set:
To save space, the dryer can be
placed on top of a suitable washing
machine of the same width and
depth.
The dryer must be fastened to
the washing machine using this
connection set.
Order number with pull-out worktop:
WTZ11400;
Order number without pull-out
worktop: WTZ20410.
■Platform:
For easier loading and unloading,
raise your dryer with a platform.
Transport laundry with the clothes
basket integrated into the platform
drawer.
Order number: WMZ20500.
■Basket for woollens:
Dry individual woollen items, sports
shoes and soft toys in the basket for
woollens.
Order number: WMZ20600.
Transport and frost protection
1. Empty the condensate container.
2. Select any programme using
the programme selector.
3. Press the Start button.
4. Wait for 5 minutes.
Note: The condensation is drained.
5. Empty the condensate container
again.
6. Switch off the dryer.
Note: Despite draining, there will
always be some residual water in
the dryer.
Caution!
Any residual water may leak out
and cause material damage.
Transport the dryer in an upright
position.
Caution!
The dryer contains coolant and may be
damaged.
Allow the dryer to rest for two hours
before initial use.
* Depending on the model

en Draining the condensation water
16
ŒDraining the
condensation water
Drainingthecondensationwater Condensation will form in the appliance
as it dries the laundry.
You must ensure that the drain hose is
connected when you operate the
appliance.
If there is no drain hose connected to
the appliance, the condensation water
from the appliance will run into the
condensation container. In this case,
you will need to empty the condensation
container each time the dryer finishes
drying the laundry, and also if it
becomes full before drying is complete.
Connect the drain hose as follows:
1. Remove the accessories from the
dryer drum.
2. When the dryer is delivered from the
factory, the hose for discharging the
condensation into the condensation
container is fastened to the
connecting piece.
3. Disconnect the hose from the
connecting piece and put it in the
"parked" position.
4. Take the drain hose from the
accessories and secure it to the free
connecting piece.
Push the drain hose into the hose
guide.

Draining the condensation water en
17
5. Fasten the other end of the drain hose with the remaining accessories,
depending on the connection situation (A, B or C).
Caution!
Accumulated water can be drawn back into the dryer and may cause material
damage.
Check that the water drains away from the wash basin quickly. The drain must
not be sealed or blocked.
Caution!
Material damage due to leaks or draining water.
Secure the drain hose so that it cannot slip out.Do not kink the drain hose.
Observe a height difference between the installation surface and the drain of
max. 100 cm and min. 80 cm for a drain into a siphon.
Note:
If you want to drain the condensation water back into the condensation container,
reverse these steps.
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en The main points in brief
18
YThe main points in brief
Themainpointsinbri ef
--------
--------
--------
1@ @
Load the laundry and close
the door.
Switch the dryer on by
turning the programme
selector to the required
programme.
Press the Start button.
2@ @
End of the programme. Remove the laundry. Switch the dryer off.
3@
Empty the condensate
container.
Clean the fluff filter.

Getting to know your appliance en
19
*Getting to know your appliance
Getti ngtoknowyour appliance Dryer
* depending on the model
(Condensate container
0Control and display panel
8Drum interior light*
@Dryer door
HAir inlet
PFluff filter
XEasyClean filter
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en Getting to know your appliance
20
Control panel
(Programme selector for switching the dryer on/off and selecting the
programme.
0Programmes ~Page 23.
8Start button for starting or interrupting the programme ~Page 25.
@Buttons for applying default programme settings ~Page 25.
HDisplay panel ~Page 21.
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