TKA4M234 - Coffee machine BOSCH - Free user manual and instructions

Product type	Filter coffee machine with thermal carafe or glass carafe depending on model
Brand	Bosch
Model	TKA4M234
Carafe capacity	Approximately 8 cups (125 ml/cup)
Power supply	230 V, 50 Hz (typical for Europe)
Power	Approximately 1000 W
Color	Black/Stainless steel (depending on model)
Aroma Intense function	Yes, longer percolation for enhanced aroma
Automatic shut-off	Yes, adjustable (20/40/60 min)
Anti-drip system	Yes
Water hardness setting	Yes, 3 levels (soft, medium, hard)
Descaling indicator	Yes, automatic
Thermal carafe	Yes (depending on model), non-hermetic seal
Keep-warm plate	Yes (for model with glass carafe)
Cord storage compartment	Yes
Removable washable parts	Water tank, filter holder, filter support, carafe
Child safety	Yes, lock or specific instructions (children over 8 years under supervision)
Recommended cleaning	Regular descaling with non-phosphoric product, cleaning of food contact surfaces
Power cord length	Approximately 1 meter (estimate)
Country of manufacture	Not specified, probably Europe or Asia

Frequently Asked Questions - TKA4M234 BOSCH

How do I prepare my machine for first use?

Run an initial cycle with a mixture of 5 cups of water and 1 cup of vinegar, then rinse twice with 6 cups of water without vinegar. Let it cool for 5 minutes between each cycle.

How do I adjust the water hardness on my Bosch TKA4M234 coffee maker?

Plug in the machine while off. Press and hold the Aroma and Descaling buttons for at least 3 seconds. The last setting flashes. Press the On/Off button to select: soft, medium, or hard (factory setting: hard). The setting is saved after 7 seconds of inactivity.

What is the Aroma Intense function for and how do I activate it?

The Aroma Intense function extends the brewing time for a stronger coffee. Press the Aroma button within one minute of starting. The symbol lights up white. It remains activated for subsequent cycles until deactivated.

How do I adjust the automatic shut-off time?

Turn off the machine. Press and hold the Descaling button for 3 seconds. The last setting flashes. Press the On/Off button to choose 20, 40, or 60 minutes (factory setting: 40 min). The setting is saved after 7 seconds.

When and how to descale the machine?

Descale when the Descaling indicator flashes or if brewing is slower. Use a non-phosphoric descaling agent following the manufacturer's instructions. Follow the procedure illustrated in the manual (fig. 21-27).

Can I use the thermal carafe in the microwave or dishwasher?

No, never put the thermal carafe or its lid in the microwave, oven, or dishwasher. Rinse with hot water and hand wash.

What type of ground coffee to use?

Use approximately 6 g of ground coffee per cup, with a medium grind. Store coffee in a cool place or freezer to preserve aroma.

What to do if the anti-drip device leaks?

Remove the filter holder and clean the anti-drip device under running water. Press the device several times with your finger towards the filter holder to restore the seal.

What are the important safety instructions?

Never immerse the appliance in water. Use it only in closed rooms at room temperature. Supervise the appliance during operation. Do not touch hot parts. Children under 8 years must be kept at a distance.

Where can I find spare parts for my coffee maker?

Use only parts approved by Bosch customer service. Contact customer service or visit the Bosch website for carafes, filter holders, etc.

USER MANUAL TKA4M234 BOSCH

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Filter coffee machine

TKA3M... TKA4M... TKA6M...

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[en]	Scan the QR code or visit the website to open the Further Notices for Use. You can find additional information about your appliance or accessory here.
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https://digitalguide.bsh-group.com?mat-no=8001280188

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    A["1: 6x battery"] --> B["2: ON"]
    B --> C["3: Hourglass icon"]
    C --> D["4: Screen roll icon"]
    D --> E["5: OFF"]
    E --> F["6: 5 min."]
    F --> G["2x"]
    G --> A

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    A["① Contact"] --> B["② ON"]
    B --> C["③ Time Window"]
    C --> D["④ Screen"]
    D --> E["⑤ Off"]
    E --> F["⑥ 5 min."]
    F --> G["⑦ Time Interval"]
    G --> H["⑧ On"]
    H --> I["⑨ 2x Multiplier"]
    I --> J["⑩ Time Window"]
    J --> K["⑪ Time Window"]

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Sicherheit

• Read this instruction manual carefully.
• Keep the instruction manual and the product information safe for future reference or for the next owner.

Only use this appliance:

■ in private households and in enclosed spaces in a domestic environment at room temperature.
■ for normal processing quantities and for normal processing times for domestic use.
■ up to an altitude of max. 2000 m above sea level.
■ for brewing filter coffee.

This appliance may be used by children aged 8 or over and by people who have reduced physical, sensory or mental abilities or inadequate experience and/or knowledge, provided that they are supervised or have been instructed on how to use the appliance safely and have understood the resulting dangers.

Do not let children play with the appliance.

Children must not perform cleaning or user maintenance unless they are at least 8 years old and are being supervised.

Keep children under the age of 8 years away from the appliance and power cable.

• Keep packaging material away from children.
  ▶ Do not let children play with packaging material.
• Keep small parts away from children.
  ▶ Do not let children play with small parts.
• Connect and operate the appliance only in accordance with the specifications on the rating plate.
• Connect the appliance to a power supply with alternating current only via a properly installed socket with earthing.
• The protective conductor system of the domestic electrical installation must be properly installed.
  ▶ Never operate a damaged appliance.
  ▶ If the appliance or the power cord is damaged, immediately unplug the power cord or switch off the fuse in the fuse box.
• Repairs to the appliance should only be carried out by trained specialist staff.

If the power cord of this appliance is damaged, it must be replaced by the manufacturer, the manufacturer's Customer Service or a similarly qualified person in order to prevent any risk.
▶ Never immerse the appliance or the power cord in water or clean in the dishwasher.
- Liquids must not be spilled on the appliance plug connection.
▶ Ventilate the appliance adequately.
▶ Never operate the appliance in a cupboard.
▶ Never leave the appliance unattended while it is switched on.
▶ Never place the appliance on or near hot surfaces.
▶ Never cover the warming plate.
▶ Only use replacement jugs that are approved for your model by customer service.
▶ Never touch hot appliance parts.
- Allow hot appliance parts to cool down before touching.
▶ Only hold the jug by the handle.
▶ To avoid injuries, only use the appliance for its intended purpose.
▶ Follow the cleaning instructions.
- Clean surfaces which come in contact with food before each use.
- To prevent bacteria forming, do not keep dairy products, baby food or similar foodstuffs in the thermos jug or keep them warm in it.

Preventing material damage

▶ Only use the appliance with fresh, cold, non-carbonated water. Never add milk, ready-made drinks or instant products.
▶ Never operate the appliance when empty or overfilled. Observe the water level indicator.
Leave the appliance to cool down for at least 5 minutes after each use.
▶ Never heat the thermos jug in the microwave or oven.
▶ Never put the thermos jug or the lid of the thermos jug in the dishwasher or in soapy water.
▶ Only place the jug in the appliance with the lid closed.

• Do not remove the jug during the brewing process.
  ▶ Only use the jug supplied.

Overview

→ Fig. 1

A	Coffee machine with thermos jug ^1
B	Coffee machine with glass jug ^1
C	Controls
1	Water tank with water level indicator, removable
2	Cover for water tank, removable
3	Filter holder, removable

^1 Depending on the model

en Preparing the appliance for first use

4	Drip stop
5	Filter housing, swivelling
6	Thermos jug with lid ^1
7	Lid-opening button
8	Glass jug with lid ^1
9	Warming plate ^1
10	Cord storage compartment
11	Aroma button, illuminated
12	Descale button, illuminated
13	On/off button, illuminated

^1 Depending on the model

Preparing the appliance for first use

Notes

■ Perform the first cleaning process with a mixture of 5 cups of water and 1 cup of vinegar.
■ Before each rinsing process switch off the appliance using the on/off button and leave it to cool down for 5 minutes.
■ Run the rinsing process twice using 6 cups of water without adding vinegar.

→ Fig. 2 - 8

General information

• Observe the water level indicator on the water tank. Fill the water tank to at least the bottom marking line and no more than the top marking line.
  ■ To attain an adequate coffee temperature and the full aroma, do not brew less than 3 cups of coffee. A cup is approx. 125 ml.
  ■ Add approx. 6 g medium-ground coffee for each cup.
  ■ Store ground coffee in a cool place or freeze.
  ■ Once a pack of coffee has been opened, always close it tightly to preserve the aroma.
  ■ How coffee beans are roasted affects their flavour and aroma.
• Darker roast = more flavour

- Lighter roast = more acidity

■ Condensation may form on the filter housing for technical reasons.

Setting the water hardness

The preset water hardness can be adjusted.

Note: It is important to set the right water hardness so your appliance indicates in good time that it needs descaling.

Requirement: The mains plug is inserted and the appliance is switched off.

1. Press and hold and for at least 3 seconds.

√ The last setting saved flashes.

1. Press the on/off button within 7 seconds and select the required setting.

Display Setting
On/off button flashes	Soft
flashes	Medium
On/off button and flash	Hard ^1

^1 Factory setting

Water hardness levels:

	German degrees in °dH	French hardness in °fH
Soft 1-8.4 1-14
Medium	8.4-14 14-25
Hard > 14 > 25

√ If no further setting is made for 7 seconds, the displayed setting will be saved.
√ The on/off button is no longer lit up and the appliance switches off.

Brewing coffee

Follow the illustrated instructions.

→ Fig. 9 - 16

Aroma intense

Your appliance has a special aroma programme. The coffee is brewed for longer, giving it a more intense aroma.

Using the aroma programme

Note: The aroma programme can only be activated or deactivated within the first minute after brewing starts.

1. To activate the aroma programme, press 🔒 button.

→ Fig. 17

√ The symbol lights up white.
√ The aroma programme remains activated for all other brewing processes.
2. To deactivate the aroma programme, press Ⓤ button.
√ The symbol is no longer lit up.

Auto switch-off

Your appliance is equipped with an automatic switch-off function that switches the appliance off after a certain period of time. Models with a thermos jug switch off a few minutes after the end of brewing. Models with a glass jug keep the coffee warm for approx. 40 minutes ^1 and then switch off. The on/off button lights up red until the coffee machine switches off automatically.

Adjusting the switch-off time ^2

The period of time after which the appliance switches off automatically can be adjusted.

Requirement: The mains plug is inserted and the appliance is switched off.

1. Press and hold ⓦ for at least 3 seconds.
   √ The last setting saved flashes.
2. Press the on/off button within 7 seconds and select the required setting.

Display Setting
On/off button flashes	20 minutes
flashes	40 minutes^1
On/off button and flash	60 minutes

^1 Factory setting

√ If no further setting is made for 7 seconds, the displayed setting will be saved.
√ The on/off button is no longer lit up and the appliance switches off.

Thermos jug

The thermos jug has a capacity of around 8 cups.

Notes

■ The seal is not hermetically tight to stop it adhering through a suction effect.
■ Never transport the thermos jug in a horizontal position or coffee might leak out.
■ Do not keep or transport carbonated drinks in the thermos jug.
■ If you rinse the thermos jug with hot water before use, the coffee will stay hot for longer.

Pouring out the coffee, removing and attaching the lid

→ Fig. 18 - 20

Descaling the appliance

The appliance is equipped with an automatic descaling indicator.

Notes

■ The appliance needs to be descaled if:

• during brewing and On/off button flash
• while keeping warm flashes ^2

en Overview of cleaning

■ Regular descaling:
– prolongs the life of the appliance
– ensures proper functioning
- prevents excessive steam
– shortens the brewing time
- saves energy
If you are descaling the appliance with a commercially available descaler, follow the manufacturer's instructions for use and safety. Do not use descaler with phosphoric acid.
■ If your tap water is very hard, descale the appliance more frequently than indicated.
■ If the appliance is brewing more slowly or switches off before the brewing process ends, descale it.

→ Fig. 21 - 27

Overview of cleaning

• Do not use cleaning agents containing alcohol or spirits.
• Do not use sharp, pointed or metal objects.
• Do not use abrasive cloths or cleaning agents.

→ Fig. 28

Notes

■ After each use, clean all parts thoroughly and rinse out.
■ Remove stubborn deposits in the thermos jug with a solution of baking soda, dishwasher granulate or denture tablets.
■ Store the thermos jug with the lid open to prevent any odours and bacteria forming.

■ If the drip stop is leaking:
- Remove the filter holder and clean the drip stop under running water.
- Press the drip stop towards the filter holder with your finger several times.

Disposing of old appliance

- Dispose of the appliance in an environmentally friendly manner. Information about current disposal methods are available from your specialist dealer or local authority.

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.

Customer Service

Detailed information on the warranty period and terms of warranty in your country is available from our after-sales service, your retailer or on our website.

The contact details for Customer Service can be found in the enclosed Customer Service directory or on our website.

Sécurité

I displayet Innstilling

På/av-tast blinker 20 minutter
∅ blinker	40 minutter1
På/av-tast og ∅ blinker	60 minutter

^1 Fabrikkinnstilling

الأمان

■. Grenية
■ ق أو

electrical and electronic

.(equipment - WEEE

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www.bosch-home.com

A Bosch Company

8001280185 (030526)

Valid within Great Britain:

Imported to Great Britain by

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Grand Union House

Old Wolverton Road

Wolverton, Milton Keynes

MK12 5PT

United Kingdom

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