DKE645M - Range hood BOSCH - Free user manual and instructions

Product type	Wall-mounted hood
Brand	Bosch
Model	DKE645M
Dimensions (W x H x D)	90 x 90 x 50 cm
Weight	15 kg
Power supply	220-240 V, 50 Hz
Max extraction power	650 m³/h
Max noise level	65 dB(A)
Filter type	Activated carbon filter (recirculation) or metal filter (extraction)
Number of speeds	3
Lighting	2 halogen bulbs 20 W
Energy class	C
Material	Stainless steel
Control	Push buttons
Air outlet diameter	150 mm
Functions	Recirculation or extraction function, timer
Maintenance and cleaning	Clean metal filters regularly in the dishwasher and replace carbon filters every 6 months
Safety	Automatic shut-off at end of timer
Spare parts and repairability	Filters, bulbs available as spare parts
General information	User manual available for free download

Frequently Asked Questions - DKE645M BOSCH

How to install the Bosch DKE645M hood?

Installation must be carried out by a qualified professional. Maintain a minimum distance of 65 cm between the hood and the hob (electric) or 75 cm (gas). Ensure the exhaust duct is correctly connected.

How to clean the hood filters?

Metal filters can be cleaned in the dishwasher or by hand with hot soapy water. Carbon filters cannot be cleaned and must be replaced every 6 months.

What to do if the hood is too noisy?

Check that the filters are clean and properly installed. Abnormal noise may come from an object blocking the fan or from poor balancing. Contact customer service if the problem persists.

How to replace the hood bulb?

Disconnect the appliance from the power supply. Remove the lighting cover and unscrew the defective bulb. Replace it with a 20 W halogen bulb (type G4). Refit the cover.

The hood does not turn on, what should I do?

Check that the hood is properly plugged in and that the circuit breaker has not tripped. If the problem persists, the motor or control panel may be faulty. Call a technician.

How to use the timer function?

Press the timer button (clock). The hood will automatically turn off after 10 minutes (or according to the setting). This function helps remove residual odors after cooking.

What is the carbon filter for?

The activated carbon filter is used in recirculation mode to absorb odors. It must be replaced regularly. If your hood is in extraction mode, this filter is not necessary.

What is the recommended installation height?

For an electric hob, the hood should be installed at least 65 cm above the hob. For a gas hob, the minimum height is 75 cm.

How to switch from extraction mode to recirculation mode?

You need to install a carbon filter and block the external air outlet. Consult the manual for detailed instructions. The recirculation kit can be purchased separately.

Where to find the user manual for the Bosch DKE645M hood?

The manual is available for free download on notice-facile.com. You can also request it by email, choosing your language.

USER MANUAL DKE645M BOSCH

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en Operating and installation instructions

Household Appliances

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Gebrauchsanleitung

Gerätebeschreibung

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Operating Instructions

Appliance description

Operating modes

Exhaust-air mode:

☐ The extractor-hood fan extracts the kitchen vapours and conveys them through the grease filter into the atmosphere.
☐ The grease filter absorbs the solid particles in the kitchen vapours.
☐ The kitchen is kept almost free of grease and odours.

When the extractor hood is operated in exhaust-air mode simultaneously with a different burner which also makes use of the same chimney (such as gas, oil or coal-fired heaters, continuous-flow heaters, hot-water boilers) care must be taken to ensure that there is an adequate supply of fresh air which will be needed by the burner for combustion.

Safe operation is possible provided that the underpressure in the room where the burner is installed does not exceed 4 Pa (0.04 mbar).

Operating modes

This can be achieved if the combustion air is able to flow through non-lockable openings, e.g. in doors, windows and in conjunction with an air supply/air-intake wall box or by other technical procedures such as reciprocal interlocking.

If the air intake is inadequate, there is a risk of poisoning from combustion gases which are drawn back into the room.

An air-intake/exhaust-air wall box by itself is no guarantee that the limiting value will not be exceeded.

Note: When assessing the overall requirement, the combined ventilation system for the entire household must be taken into consideration. This rule does not apply to the use of cooking appliances, such as hobs and ovens.

Unrestricted operation is possible if the extractor hood is used in recirculating mode – with activated carbon filter.

Circulating-air mode:

☐ An activated carbon filter must be fitted for this operating mode (see Filters and maintenance).

⚠️ The complete installation set and replacement filters can be obtained from specialist outlets. The corresponding accessory numbers can be found at the end of these operating instructions.

☐ The extractor-hood fan extracts the kitchen vapours which are purified in the grease filter and activated carbon filter and then conveyed back into the kitchen.

☐ The grease filter absorbs the grease particles in the kitchen vapours.

☐ The activated carbon filter binds the odorous substances.

⚠️ If no activated carbon filter is installed, it is not possible to bind the odorous substances in the cooking vapours.

Important notes:

☐ The Instructions for Use apply to several versions of this appliance. Accordingly, you may find descriptions of individual features that do not apply to your specific appliance.
☐ This extractor hood complies with all relevant safety regulations.

Repairs should be carried out by qualified technicians only.

Improper repairs may put the user at considerable risk.

⚠ The appliance is not intended for use by young children or infirmed persons without supervision.
Young children should be supervised to ensure they do not play with the appliance.

⚠️ If the connecting cable for this appliance is damaged, the cable must be replaced by the manufacturer or his customer service or a similarly qualified person in order to prevent serious injury to the user.

⚠ The appliance may be connected to the mains by a qualified technician only.

⚠ Dispose of packaging materials properly (see Installation instructions).

⚠ This extractor hood is designed for domestic use only.

Light bulbs must always be fitted when the extractor hood is in use.

⚠️ Defective bulbs should be replaced immediately to prevent the remaining bulbs from overloading.

⚠️ Never operate the extractor hood without a grease filter.

⚠️ Overheated fat or oil can easily catch fire. If you are cooking with fat or oil, e.g. chips, etc., never leave the cooker unattended.

⚠️ Do not flambé food directly under the extractor hood.

! Risk of grease filter catching fire due to flames.

⚠ The hotplates must always be covered with a utensil.

Before using your appliance for the first time, please read these Instructions for Use carefully. They contain important information concerning your personal safety as well as on use and care of the appliance.
☐ Please retain the operating and installation instructions for a subsequent owner.

⚠️ Do not use the appliance if damaged.

⚠️ Restrictions apply to the use of the extractor hood over a solid-fuel burner (coal, wood, etc.). (See Installation instructions).

Gas hobs / Gas cookers

Do not use all the gas hotplates simultaneously for a prolonged period (max. 15 minutes) at maximum thermal load, otherwise there is a risk of burns if the housing surfaces are touched or a risk of damage to the extractor hood. If the extractor hood is situated over a gas hob, operate the hood at maximum setting if three or more gas hotplates are operated simultaneously.

If you encounter a problem

If you have any questions or if a fault occurs, please call Customer Service.

(See list of Customer Service representatives).

When you call, please quote the following:

E-Nr.

FD

Enter the relevant numbers into the box above. The E-Nr. (product no.) and FD (production date) are shown on the nameplate which can be seen inside the extractor hood after the filter frame has been detached.

Operating procedure

⚠ The most effective method of removing vapours produced during cooking is to:

☐ Switch the ventilator ON as soon as you begin cooking.

☐ Switch the ventilator OFF a few minutes after you have finished cooking.

Setting the required fan speed:

☐ Press the + button. The fan speed is increased by one step.

☐ Press the – button. The fan speed is reduced by one step.

- Keep pressing the – button until the fan switches off.

Lighting:

☐ The light can be switched on at any time, even though the fan is switched off.

Filters and maintenance

Grease filters:

Metal filters are used to trap the greasy element of the vapours that develop during cooking.

The filter mats are made from non-combustible metal.

Caution:

As the filter becomes more and more saturated with grease, not only does the risk of it catching fire increase but the efficiency of the extractor hood can also be adversely affected.

Important:

By cleaning the metal grease filters at appropriate intervals, the possibility of them catching fire as a result of a build-up of heat such as occurs when deep-fat frying or roasting is taking place, is reduced.

Cleaning the metal grease filters:

☐ In normal operation (1 to 2 hours daily), the metal grease filter must be cleaned after 8 to 10 weeks.

☐ The filters can be cleaned in a dish-washer. It is however possible that they will become slightly discoloured.

☐ The filter must be placed loosely, and NOT wedged, in the dishwasher.

Important:

Metal filters that are saturated with grease should not be washed together with other dishes etc.

☐ When cleaning the filters by hand, soak them in hot soapy water first of all. Then brush the filters clean, rinse them thoroughly and leave the water to drain off.

Filters and maintenance

Removing and inserting the metal grease filters:

Warning: The halogen bulbs must be switched off and cool.

1. Press the catch on the grease filters inwards and fold the filters down.

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1. Clean the filters.

2. Insert the clean filters back into the hood.

Activated carbon filter:

For neutralizing odours in recirculating mode.

Caution:

As the filter becomes more and more saturated with grease, there is an increased risk of fire and the function of the extractor hood may be impaired.

Important:

Change the activated carbon filter promptly to prevent the risk of fire from the accumulation of heat when deep-fat frying or roasting.

Inserting the filter:

Warning: The halogen bulbs must be switched off and cool.

1. Remove the metal filters (see "Removing and inserting the metal grease filters").

2. Insert the activated carbon filter.

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1. Engage the lug.

Removing the filter:

Warning: The halogen bulbs must be switched off and cool.

1. Remove the metal filters.

2. Press in the lug and remove the activated carbon filter.

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1. Insert the metal grease filters.

Replacing the activated carbon filter:

☐ During normal operation (1 to 2 hours per day) the activated carbon filters should be replaced approximately 1 x year.

☐ A replacement filter can be obtained from any authorized dealer (see optional accessories).

☐ Use original filters only. By doing so you will obtain maximum performance from your extractor hood.

Disposing of the old activated carbon filter:

☐ There are no pollutants in the activated carbon filters. They can therefore be disposed of as part of your normal domestic refuse.

Cleaning and care

Disconnect the extractor hood from the electricity supply by pulling out the mains plug or switching it off at the fuse box.

☐ At the same time as you clean the grease filters, clean off any grease from all accessible parts of the housing. This significantly reduces the fire hazard and ensures that the extractor hood performs as effectively as possible.
☐ Use a hot detergent solution or a mild window cleaner to clean the canopy of the extractor hood.
☐ Do not scrape off any dirt that has dried on but loosen it up with a damp cloth.
☐ Do not use abrasive cleaning agents or sponges that could cause scratches.
☐ Note: Do not use alcohol (spirit) on plastic parts, otherwise the surface may become matt in appearance.

Caution: Ensure that the kitchen is adequately ventilated. Avoid naked flames!

⚠ Clean the operating buttons with a mild soapy solution and a soft, damp cloth only. Do not use stainless-steel cleaner to clean the operating buttons.

Stainless steel surfaces:

☐ Use a mild non-abrasive stainless steel cleaner.
☐ Clean the surface in the same direction as it has been ground and polished.

Do not use any of the following to clean stainless steel surfaces: abrasive sponges, cleaning agents containing sand, soda, acid or chloride!

Aluminium and plastic surfaces:

☐ Use a soft, non-linting window cloth or micro-fibre cloth.
☐ Do not use dry cloths.
☐ Use a mild window cleaning agent.
☐ Do not use aggressive, acidic or caustic cleaners.
☐ Do not use abrasive agents.

Replacing the light bulbs

1. Switch off the extractor hood and pull out the mains plug or switch off the electricity supply at the fuse box.
   When switched on, the halogen bulbs become very hot. Even for some time after the bulbs have been switched off there is still a risk of burns.
2. Remove the bulb ring with a screwdriver or similar tool.

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1. Replace the halogen light bulb (conventional halogen bulb, 12 Volt, max. 20 Watt, G4 cap). Caution: Refer for plug-in lampholder. Take hold of the bulb with a clean cloth.

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1. Re-insert the bulb ring.
2. Plug the appliance into the mains or switch it on at the fuse box.

Note: If the light does not function, check that the bulbs have been inserted correctly.

Important information

⚠️ Old appliances are not worthless rubbish. Valuable raw materials can be reclaimed by recycling old appliances. Before disposing of your old appliance, render it unusable.

⚠️ You received your new appliance in a protective shipping carton. All packaging materials are environmentally friendly and recyclable. Please contribute to a better environment by disposing of packaging materials in an environmentally-friendly manner.

Please ask your dealer or inquire at your local authority about current means of disposal.

⚠ The extractor hood can be used in exhaust air or circulating air mode.

⚠️ Always mount the extractor hood over the centre of the hob.

⚠️ Minimum distance between electric hob and bottom edge of extractor hood: 550 mm, Fig. 1.

⚠ The extractor hood must not be installed over a solid fuel cooker – a potential fire hazard (e.g. flying sparks) – unless the cooker features a closed, non-removable cover and all national regulations are observed.

⚠ The smaller the gap between the extractor hood and hotplates, the greater the likelihood that droplets will form on the underside of the extractor hood.

Additional information concerning gas cookers:

⚠ When installing gas hotplates, comply with the relevant national statutory regulations (e.g. in Germany: Technische Regeln Gasinstallation TRGI).

⚠️ Always comply with the currently valid regulations and installation instructions supplied by the gas appliance manufacturer.

⚠️ Only one side of the extractor hood may be installed next to a high-sided unit or high wall. Gap at least 50 mm.

⚠️ Minimum distance on gas hotplates between the upper edge of the trivet and lower edge of the extractor hood: 650 mm, Fig. 1.

Exhaust-air mode

The exhaust air is discharged upwards through a ventilation shaft or directly through the outside wall into the open.

Exhaust air should neither be directed into a smoke or exhaust flue that is currently used for other purposes, nor into a shaft that is used for ventilating rooms in which stoves or fireplaces are also located.

Exhaust air may be discharged in accordance with official and statutory regulations only (e.g. national building regulations).

Local authority regulations must be observed when discharging air into smoke or exhaust flues that are not otherwise in use.

When the extractor hood is operated in exhaust-air mode simultaneously with a different burner which also makes use of the same chimney (such as gas, oil or coal-fired heaters, continuous-flow heaters, hot-water boilers) care must be taken to ensure that there is an adequate supply of fresh air which will be needed by the burner for combustion.

Safe operation is possible provided that the underpressure in the room where the burner is installed does not exceed 4 Pa (0.04 mbar).

This can be achieved if combustion air can flow through non-lockable openings, e.g. in doors, windows and via the air-intake/exhaust-air wall box or by other technical measures, such as reciprocal interlocking, etc.

If the air intake is inadequate, there is a risk of poisoning from combustion gases which are drawn back into the room.

An air-intake/exhaust-air wall box by itself is no guarantee that the limiting value will not be exceeded.

Note: When assessing the overall requirement, the combined ventilation system for the entire household must be taken into consideration. This rule does not apply to the use of cooking appliances, such as hobs and ovens.

Unrestricted operation is possible if the extractor hood is used in recirculating mode – with activated carbon filter.

If the exhaust air is going to be discharged into the open, a telescopic wall box should be fitted into the outside wall.

Prior to installation

For operating in exhaust-air mode, a one-way flap should be mounted inside the extractor hood unless there is already one fitted in the outlet duct or wall ventilation box.

If no one-way flap was enclosed with the hood, it can be obtained from a specialist retailer.

Installing the one-way flap:

☐ Snap the one-way flap into the air pipe.

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⚠ The two lightly sprung flaps must be able to move upwards.

For optimum extractor hood efficiency:

☐ Short, smooth air exhaust pipe.
☐ As few bends in the pipe as possible.
☐ Diameter of pipe to be as large as possible and no tight bends in pipe. If long, rough exhaust-air pipes, many pipe bends or smaller pipe diameters are used, the air extraction rate will no longer be at an optimum level and there will be an increase in noise.

Round pipes:

We recommend Internal diameter: 125 mm (at least 100 mm).

☐ Flat ducts must have an internal cross-section that equates to that of round pipes.

There should be no sharp bends.

100 mm approx.78 cm ^2

∅ 125 mm approx. 113 cm

☐ If pipes have different diameters: Insert sealing strip.
☐ For exhaust-air mode, ensure that there is an adequate supply of fresh air.

Connecting a 125 mm exhaust-air pipe:

☐ Mount the pipe directly onto the air outlet on the hood.

Connecting a 100 mm exhaust-air pipe:

☐ Attach the reducing connector (enclosed or available from specialist retailer) to the air pipe and then attach to the exhaust-air duct.

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Prior to installation

Circulating-air mode

☐ With activated carbon filter if exhaust-air mode is not possible.

⚠️ The complete installation set can be obtained from specialist outlets. The corresponding accessory numbers can be found at the end of these operating instructions.

Preparing the wall

☐ The wall must be flat and perpendicular.
☐ Ensure that the wall is capable of providing a firm hold for mounting screws and plugs.

Weight in kg:

	Exhaust air	Recirculating air
	19,060 cm	21,0
90 cm	21,5 23,5

We reserve the right to construction changes within the context of technical development.

Electrical connection

WARNING: THIS APPLIANCE MUST BE EARTHED

IMPORTANT: Fitting a Different Plug:

The wires in the mains lead are coloured in accordance with the following code:

Green and Yellow – Earth

Blue - Neutral

Brown – Live

If you fit your own plug, the colours of these wires may not correspond with the identifying marks on the plug terminals.

Electrical connection

This is what you have to do:

1. Connect the green and yellow (Earth) wire to the terminal in the plug marked 'E' or with the symbol (≡), or coloured green or green and yellow.
2. Connect the blue (Neutral) wire to the terminal in the plug marked 'N' or coloured black.
3. Connect the brown (Live) wire to the terminal marked 'L', or coloured red.

The extractor hood should only be connected to an earthed socket that has been installed according to relevant regulations.

If possible, site the earthed socket directly behind the chimney panelling.

Electrical data:

Are to be found on the name plate inside the appliance after removal of the filter frame.

⚠️ Before undertaking any repairs, always disconnect the extractor hood from the electricity supply.

Length of the connecting cable: 1.30 m. If it is necessary to wire the extractor hood directly into the mains:

The extractor hood should only be connected to the electricity supply by a properly qualified electrician.

A separator must be installed in the household circuit. A suitable separator is a switch that has a contact gap of more than 3 mm and interrupts all poles. Such devices include circuit breakers and contactors.

⚠️ If the connecting cable for this appliance is damaged, the cable must be replaced by the manufacturer or his customer service or a similarly qualified person in order to prevent serious injury to the user.

This extractor hood corresponds to EC regulations concerning RF interference suppression.

Installation

This extractor hood is intended to be mounted onto the kitchen wall.

1. Remove the grease filter (refer to Operating Instructions).
2. Draw a line on the wall from the ceiling to the lower edge of the hood at the centre of the location where the hood is going to be mounted.
3. Using the template, mark positions on the wall for the screws.

⚠ Ensure that the minimum distance between the hob and the extractor hood is maintained – 550 mm for an electric hob and 650 mm for a gas hob. The bottom edge of the template equates to the lower edge of the extractor hood.

1. Drill 4 x ∅ 8 mm holes for the extractor hood and 2 x ∅ 8 mm holes for the chimney panelling. Insert plugs into the holes so that they are flush with the wall.

Note: Take into account any special accessories that are going to be fitted.

1. Attach the 2 enclosed spacers to the fixing bracket for the flue duct panelling. Attach the fixing bracket for the chimney panelling using two hexagon head cap screws.
2. Screw in the two upper hexagon head cap screws leaving them extended by approx. 5 mm.
3. Attach the extractor hood to the screws.

Installation

1. Screw in the two lower hexagon head cap screws.

⚠️ Before the 4 screws are tightened down, align the extractor hood properly.

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1. Connect up the air outlet pipe.

2. Connect the hood to the electricity supply.

3. Remove the protective film from the two flue ducts.

⚠️ Take care not to damage the surfaces which are susceptible to scratches etc.

1. Push both sections of the flue panelling together (slots in the upper section must be pointing downwards) and insert into the opening in the extractor hood.

⚠️ Protect the cover panels from scratches, for example by laying the template used for marking the wall over the top edge of the lower section.

1. Slide out the upper section and attach it to the mounting brackets at the sides with two screws.

1. Insert the grease filter (refer to Operating Instructions).

Mode d'emploi

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125 mm φ = 113 cmde section.

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Avant le montage

Mode Air recyclé

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1. Bevestig de lip.

Verwijderen:

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Let op: plugfitting.

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Voor de montage

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Diagram of a 3D structural component with grid pattern and hand holding part (no text or symbols)

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Prima del montaggio

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1. Montar os filtros de gordura.

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1. Substituir a lâmpada de halogéneo (lâmpada de halogéneo corrente no mercado, 12 Volt, máx. 20 Watt, casquilho G4).

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Antes da Montagem

Diagram of a mechanical or fluidic system with directional arrows indicating flow or movement (no text or symbols present)

Technical illustration of a mechanical clamp or fixture assembly with a magnified inset showing internal components (no text or symbols present)

Diagram showing three views of a solar panel installation with mesh patterns and a magnified inset (no text or symbols)

Diagram of a 3D structural grid assembly with a hand holding the component (no text or symbols)

Illustration of a hand cleaning a grid-patterned metal frame (no text or symbols)

Illustration of a magnifying glass with a circular lens and handle (no text or symbols)

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Technical illustration of a mechanical component with a dome-shaped housing and mounting base (no text or symbols)

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