TKA6A684 - Coffee maker BOSCH - Free user manual and instructions

Product Type	Filter coffee machine (ComfortLine)
Brand	Bosch
Model	TKA6A684 (also TKA6A.4. glass jug variant)
Dimensions (H x W x D)	355 mm x 285 mm x 230 mm
Power Consumption	1000–1200 W
Voltage / Frequency	220–240 V ~ 50/60 Hz
Water Tank Capacity	1.25 L (for glass jug variant)
Jug Type	Glass jug with lid (dishwasher-safe)
Filter Type	Size 1x4 paper filter
Cup Capacity	Up to 8 cups (approx. 125 ml each)
Aroma Function	Yes – extends brewing time for stronger flavor (memory function)
Auto-off Timer	Adjustable: 20, 40, or 60 minutes after brewing (glass jug variant)
Water Hardness Setting	Yes – soft, medium, hard
Descaling Indicator	Yes – button lights orange when descaling needed
Drip Stop	Yes – automatically stops flow when jug is removed
Dishwasher-Safe Parts	Filter holder, glass jug and lid (not thermos jug)
Safety Features	Automatic shut-off, overheating protection, do not immerse in water
Cleaning	Wipe housing with damp cloth; water tank and filter holder rinse under running water; jug dishwasher-safe

Frequently Asked Questions - TKA6A684 BOSCH

How do I descale the coffee machine?

When the ⏻ button lights up orange after brewing, descaling is required. Use a commercial descaling agent (no phosphoric acid). Fill the water tank with descaling solution (max 6 cups). Press and hold the ⏻ button for 5 seconds to start the descaling program. The process lasts about 30 minutes. Rinse twice with clean water afterwards.

How do I set the water hardness?

With the appliance switched off and plugged in, press and hold the ⏻ button and aroma button simultaneously for 3 seconds. The button flashes. Within 7 seconds, press ⏻ to select: green (soft), orange (medium), or red (hard). The setting is saved automatically after 7 seconds.

How do I adjust the auto-off time?

For the glass jug variant: With the appliance switched off and plugged in, press and hold the aroma button for 3 seconds. The ⏻ button flashes. Within 7 seconds, press ⏻ to cycle through: green (20 min), orange (40 min), red (60 min). The last setting is saved after 7 seconds. For the thermos jug variant, auto-off occurs a few minutes after brewing.

What should I do if the coffee machine does not start and the ⏻ button flashes red?

The appliance is still too hot. Wait for it to cool down (about 5 minutes). The brewing will start automatically once it has cooled.

Can I use any jug with the coffee machine?

No, only use the supplied jug with the lid closed. Other jugs may cause the drip stop to block the coffee flow. Always place the jug correctly under the filter housing.

How do I use the aroma button?

Press the aroma button within 1 minute after brewing starts. The button lights up red, and the coffee is brewed longer for a stronger taste. The setting is remembered even after switching off.

Why is there condensation on the filter housing?

Condensation on the filter housing is normal and does not indicate a defect. It occurs due to temperature differences during brewing.

How do I clean the glass jug and other parts?

The glass jug and lid are dishwasher-safe. The filter holder is also dishwasher-safe. Wipe the housing with a damp cloth. Rinse the water tank under running water. For the thermos jug variant, do not put it in the dishwasher; rinse manually with warm water and baking soda for stains.

What is the minimum amount of water I should use?

Do not brew less than 4 cups (glass jug) or 3 cups (thermos jug) of water. Using less will result in weak coffee and lower temperature.

How do I brew coffee for the first time?

Remove stickers and film. Pull out the power cord. Fill the water tank with 6 cups of clean water, insert the jug, and switch on using the ⏻ button. Let it run once, then repeat. Optionally, run a diluted vinegar solution (1 cup vinegar to 5 cups water) to remove any odours, then rinse twice with clean water.

USER MANUAL TKA6A684 BOSCH

ComfortLine Filter coffee machine

TKA6A...

[en] Instruction manual Filter coffee machine 8

3D rendering of a glass coffee maker with handle and lid (no text or symbols)

TKA6A.4.TKA6A.8.

3D rendered image of a metallic kettle with a handle and spout (no text or symbols)

Diagram showing a curved pipe with two opposing arrows indicating flow or movement (no text or symbols)

B

Illustration of a hand washing a water dispenser with a faucet, showing the process (no text or symbols)

Mechanical device diagram showing a cup and handle assembly with a directional arrow indicating motion (no text or symbols)

Illustration of a digital kitchen with an hourglass icon and a coffee mug with a checkmark (no text or symbols)

C

Illustration showing a teapot pouring liquid into a coffee cup, with a side-view view of the container being inserted (no text or symbols present)

Sicherheitshinweise

Please read and follow the operating instructions carefully and keep them for later reference. Enclose these instructions when you give this appliance to someone else. This appliance is intended for domestic use only.

⚠️Danger of electric shock!

Only use the appliance indoors at room temperature and up to 2000 m above sea level. The appliance may only be connected to a power supply with alternating current via a correctly installed socket with earthing. Ensure that the protective conductor system of the domestic supply has been correctly installed.

Connect and operate the appliance only according to the type plate specifications. To avoid potential hazards, repairs such as replacing a damaged cable must only be carried out by our customer service personnel.

This appliance can be used by children aged from 8 years and above and by persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and if they understand the hazards involved. Keep children under 8 years of age away from the appliance and connecting cable and do not allow them to use the appliance. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children unless they are older than 8 years and supervised.

Never immerse the appliance or mains cable in water.

Never leave the appliance unattended while it is switched on! Use only if power cord and appliance show no signs of damage. Should a fault occur, pull the plug or disconnect from the mains immediately.

⚠️Risk of burns and fire!

A misuse of the appliance can potentially lead to injury. During operation of the appliance the temperature of exposed surfaces may become very high. During operation only grasp the parts of the appliance and the glass jug by the handles provided.

Do not place the appliance on or near hot surfaces, e.g. hobs. Avoid spatters of grease as the plastic may be damaged.

Never cover the parking zone for the jug. After the use the heating element surfaces and warming plate can be subjected to residual heat.

The appliance gets hot. Never operate the appliance in a cupboard.

⚠️Risk of suffocation!

Do not allow children to play with packaging material.

Congratulations on purchasing this Bosch appliance. You have acquired a high-quality product that will bring you a lot of enjoyment.

This instruction manual describes two models:

■ TKA6A.4. Model with glass jug
■ TKA6A.8. Model with thermos jug

Parts and operating controls

→ Fig. A

1 Water tank with fill level indicator (removable)
2 Water tank cover (removable)
3 Filter housing (swivelling)
4 Filter holder (dishwasher-safe)
5 Drip stop
6 TKA6A.4. Glass jug with lid (dishwasher-safe) TKA6A.8. Thermos jug with lid (not suitable for dishwashers)
7 Button ⏻ on/off/programming
8 Aroma button Ⓞ ^+
9 Cable storage compartment

TKA6A.4. only

10 Warming plate

General information

• Fill water tank with clean, cold water only. Never add milk or beverages such as tea or coffee, or this will damage the appliance.
• Never exceed the top marking (line) when you fill the tank with water.
• Use coffee with a medium grind (approx. 7 g per cup).
• Do not brew less than the minimum amount of 4 🚫 / 3 🚫, or the coffee will not have the desired strength and temperature.
• Never remove the jug while the machine is brewing coffee as this may cause the filter holder to overflow.

• Place the jug in the coffee machine only with the lid closed.

• Don't use other jugs, or the special drip protector will block the flow of coffee.

• If condensation accumulates on the filter housing, it does not indicate that the coffee machine is defective.

Before using for the first time

■ Remove any stickers or film.
■ Pull enough of the power cable out of the storage compartment and plug in.
■ To clean, fill the water tank with 6 cups of water and replace it.
- Put the jug into the appliance and switch on with button ⏻.
■ Repeat the cleaning process.

Info: The new appliance may emit a harmless odour. If this is the case, fill with a diluted vinegar solution (1 cup of vinegar to 5 cups of water) and run the cleaning programme. Next, rinse the machine twice with 6 cups of water.

■ Clean the jug thoroughly.

Brewing coffee

→ Image sequence B

1. Remove the water tank, fill with water and reinsert up to the stop.
2. Swivel out the filter housing.
3. Insert a 1x4 filter paper in the filter holder and fill with the amount of coffee required.
4. Swivel the filter housing back and click it into place.
5. Position the jug, with its lid closed, under the filter housing.
6. Press button ⏻, and the brewing process starts.

Important: When the brewing process is complete, wait a moment until all the coffee has run through the filter and into the jug.

Let the machine cool down for five minutes before brewing a fresh pot.

Aroma button Ⓞ ^+

This coffee machine has a special aroma programme, which can be switched on and off with the aroma button. If the aroma programme is activated, the coffee is brewed for longer, so altering the taste of the coffee.

■ Press aroma button ⚙ ^+ to switch on within 1 minute after brewing starts. The button lights up red.

Important: The aroma button has a memory function and also remains activated after switch-off of the appliance. The aroma button can only be switched on or off within the first minute after brewing starts.

Timer function "auto off"

Only model with glass jug TKA6A.4.

The appliance has an automatic auto off (power save) function, which switches it off after a period of about 40 minutes after the end of brewing.

This time can be adjusted:

■ The appliance must be switched off and the mains plug inserted in the socket.
■ Press and hold down button ^+ for at least 3 seconds. Button ⏻ flashes.
■ To make a selection, press button ⏻ within 7 seconds.

flashes green	Switch-off time20 minutes
flashes orange	Switch-off time40 minutes(factory setting)
flashes red	Switch-off time60 minutes

Important: If no selection is made within 7 seconds, the last setting is active. Button ⏻ goes out, and the appliance is switched off again.

Only model with thermos jug TKA6A.8.

The appliance has an automatic auto off (power save) function, which switches it off a few minutes after the end of brewing.

Tip: The coffee will stay hot for even longer if the thermos jug is rinsed out with hot water before brewing.

Setting the water hardness

The water hardness can be selected for this coffee machine.

It is important to set the water hardness correctly so the appliance will accurately indicate when the descaling programme should be run.

The preset water hardness is "hard".

This can be adjusted:

■ The appliance must be switched off and the mains plug inserted in the socket.
■ Press and hold down buttons and ⏻ simultaneously for at least 3 seconds. Button ⏻ flashes.
■ To make a selection, press button ⏻ within 7 seconds.

flashes green	soft
flashes orange	medium
flashes red	hard (factory setting)

Important: If no selection is made within 7 seconds, the last setting is active.

Button ⏻ goes out, and the appliance is switched off again.

Water hardness

	German (°dH) French (°fH)
soft 1 - 8	.4 1 - 14
medium	8.4 - 14 14 - 25
hard >14	>25

Thermos jug

Only model TKA6A.8.

Important: Do not keep dairy products or baby food warm: formation of bacteria. Do not heat the jug in the microwave or oven. Do not keep or transport carbonated drinks in the jug. Rinse carefully after cleaning.

The seal is not hermetically tight to prevent adherence through a suction effect. For this reason the thermos jug should never be transported in a horizontal position, or coffee might leak out. The thermos jug has a capacity of around 8 cups.

The lid of the thermos jug can be opened with the unlocking mechanism.

→ Image sequence C

1. Pouring out
2. Open the lid and remove
3. Replace the lid and close

Note: The bottom of the thermos jug and the area underneath it on the coffee machine can become very hot. This does not indicate that the appliance is defective.

Coffee-making tips

Store ground coffee in a cool place. You can also freeze it.

Once a pack of coffee has been opened, always close tightly to maintain its aroma.

How the coffee beans are roasted affects their taste and aroma.

Darker roast = more flavour

Lighter roast = more acidity

Cleaning

Never immerse the appliance in water or place it in the dishwasher!

Do not steam-clean the appliance.

Unplug the appliance before cleaning it.

■ Clean all parts that came into contact with coffee after each use.
■ Clean the outside of the housing with a damp cloth. Do not use harsh or abrasive cleaning agents.
- Clean the water tank under running water. Don't use a hard brush.

Only model with glass jug TKA6A.4.

■ The glass jug and lid are dishwasher-safe.

Only model with thermos jug TKA6A.8.

■ Rinse out the thermos jug and lid and wipe the outside clean with a damp cloth. Do not put in the dishwasher or washing-up water.

Tip: Stubborn stains can be removed with a solution of baking soda, dishwasher granulate or denture tablets.

■ Do not store the thermos jug closed to prevent odours and the formation of bacteria.

Descaling

This appliance is equipped with an automatic descaling indicator. If button ⏻ lights up orange after the end of brewing, the appliance must be descaled.

Regular descaling

■ prolongs the life of the appliance;
■ ensures that it functions properly;
■ prevents excessive steam;
■ speeds up the brewing process;
■ saves energy.

The coffee machine should be descaled with a commercial descaling agent.

■ The appliance must be switched off and the mains plug inserted in the socket.
■ Place the jug in the coffee machine with the lid closed.
- Measure out descaler in accordance with the manufacturer's instructions (take note of safety information) and add to the water tank. Do not use descaling agent with phosphoric acid.

Caution: Do not fill with more than 6 cups of liquid.

■ Press and hold down button for at least 5 seconds. The descaling process starts.

■ The programme will stop several times for a few minutes to let the descaler take effect. The descaling process lasts for approximately 30 minutes. While the programme is running, button ⏻ flashes orange.
■ When the descaling process is complete, button ⏻ is no longer lit up.
■ Operate the appliance twice using clean water, without coffee. Do not fill with more than 6 cups of water.
■ Carefully rinse all loose components and the jug.

Rectifying minor faults yourself

Button ⏻ flashes red, and brewing does not start.

– The appliance is still too warm.

■ The appliance will start brewing automatically once it has cooled down.

The machine takes noticeably longer or switches itself off before the brewing process is complete.

– Heavy build-up of limescale in the appliance.

■ Descale the appliance according to the instructions.

Tip: With very hard water descale the appliance more frequently than indicated (button ⏻ lights up orange) and set the water hardness to "hard".

The drip stop is leaking.

- Soiling of drip stop.

■ Clean the drip stop (in the filter holder) under running water while operating it several times with your finger.

Technical data

Electrical connection 220-240 V~50/60 Hz
Output 1000-1200 W
Appliance height 355 mm
Appliance width 285 mm
Appliance depth 230 mm
Water capacity TKA6A.4. 1.25 L

Disposal

Dispose of packaging in an environmentally-friendly 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. Please ask your specialist retailer about current disposal facilities.

Guarantee

The guarantee conditions for this appliance are as defined by our representative in the country in which it is sold. Details regarding these conditions can be obtained from the dealer from whom the appliance was purchased. The bill of sale or receipt must be produced when making any claim under the terms of this guarantee.

Changes reserved.

10 Plaque chauffante

Still inn vannets hardhet

Vannets hardhetsgrad

	Tysk (°dH) Fransk (°fH)
mykt 1 -	8,4 1 - 14
middels	8,4 - 14 14 - 25
hardt >14	>25

Termokanne

Kun variant TKA6A.8.

www.bosch-home.com/tr

www.bosch-yetkiliservisi.com

(waste electrical and electronic equipment – WEEE).

Jebel Ali Free Zone – Dubai

Tel.: [phone]

mailto:[e-mail]

www.bosch-home.com/ae

AL Republika e Shqiperise, Albania

ELEKTRO-SERVIS sh.p.k

Rr. Shkelqim Fusha, Selite, Pallati "Matrix Konstruksion",

Kati 0 dhe +1

1023 Tirane

Tel.: [phone], -131

Fax: [phone]

mailto:[e-mail]

EXPERT SERVIS

Rruga e Kavajes,

Kulla B Nr 223/1 Kati I

1023 Tirane

Tel.: [phone]

Tel.: [phone]

Fax: [phone]

Cel: [phone]

mailto:[e-mail]

Gate 1, 1555 Centre Road

Clayton, Victoria 3168

Tel.: [phone]*

Fax: [phone]

mailto:[e-mail]

www.bosch-home.com.au

* Mo-Fr: 24 hours

BA Bosna i Hercegovina, Bosnia-Herzegovina

"HIGH" d.o.o.

Gradačačka 29b

71000 Sarajevo

Tel./Fax: [phone]

mailto:[e-mail]

Business center FPI, floor 5,

Cherni vrah Blvd. 51B

1407 Sofia

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mailto:[e-mail]

www.bosch-home.bg

BH Bahrain

Khalafat Est.

P.O. Box 5111

Manama

Tel.: [phone]

mailto:[e-mail]

To arrange an engineer visit, to order spare parts and accessories or for product advice please visit

www.bosch-home.co.uk

or call Tel.: [phone]*

* Calls are charged at the basic rate, please check with your telephone service provider for exact charges.

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BSH Ikiakes Siskeves A.B.E.

Central Branch Service

17 km E.O. Athinon-Lamias & Potamou 20

14564 Kifisia

Τηλέφωνο: 181 82

Unit 1 & 2, 3rd Floor,

North Block, Skyway House,

3 Sham Mong Road

Tai Kok Tsui, Kowloon

Hong Kong

Tel.: [phone] (HK)

Toll free 0800 863 (Macao)

Fax: [phone]

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www.bosch-home.com/hr

www.bosch-home.com/hu

IE Republic of Ireland

BSH Home Appliances Ltd.

M50 Business Park

Ballymount Road Upper

Walkinstown

Dublin 12

To arrange an engineer visit, to order spare parts and accessories or for product advice please call

Tel.: [phone]*

www.bosch-home.ie

* Calls are charged at the basic rate, please check with your telephone service provider for exact charges

IL Israel

C/S/B/ Home Appliance Ltd.

1, Hamasger St.

North Industrial Park

Lod, 7129801

Tel.: [phone]

Fax: [phone]

mailto:[e-mail]

www.bosch-home.co.il

IN India, Bhārat, भारत

BSH Household Appliances Mfg. Pvt. Ltd.

Arena House, Main Bldg, 2nd Floor,

Plot No. 103, Road No. 12,

MIDC, Andheri East

Mumbai 400 093

Toll Free 1800 266 1880*

www.bosch-home.com/in

* Mo-Sa: 8.00am to 8.00pm

(exclude public holidays)

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Smith & Norland hf.

Noatuni 4

105 Reykjavik

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Fax: [phone]

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www.bosch-home.com/it

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IP Anackiy A.N. PTN-Service

Kuyshi Dina str.23/1 N3

Astana

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mailto:[e-mail]

Technodom Service

Utegen Batira Str. 73

480096 Almaty

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mailto:[e-mail]

www.technodom.kz

Kombitechnocentr

Zhambyl st. 117

480096 Almaty

Tel.: [phone]

mailto:[e-mail]

www.cts.kz

TOO Evrika Service

Shimkent, Riskulova 22.

Shimkent 160018

Tel.: [phone]

mailto:[e-mail]

www.evrika.com

AV SERVICE

Abulhair hana Str. 51

Uralsk 090000

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mailto:[e-mail]

www.avservice.kz

LB Lebanon

Teheni, Hana & Co.

Boulevard Dora 4043 Beyrouth

P.O. Box 90449

Jdeideh, 1202 2040

Tel.: [phone]

mailto:[e-mail]

LT Lietuva, Lithuania

Senuku prekybos centras UAB

Jonavos g. 62

44192 Kaunas

Tel.: [phone]

Fax: [phone]

www.senukai.lt

UAB "AG Service"

R. Kalantos g. 32

52494 Kaunas

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Fax: [phone]

mailto:[e-mail]

www.agservice.lt

Baltic Continent Ltd.

Lukšio g. 23

09132 Vilnius

Tel.: [phone]

Fax: [phone]

mailto:[e-mail]

www.balticcontinent.lt

UAB Emtoservis

S.R.L. "Rialto-Studio"

ул. Щусева 98

2012 Кишинев

Unit F 2, 4 Orbit Drive

Mairangi Bay

Auckland 0632

Tel.: [phone]*

Fax: [phone]

mailto:[e-mail]

www.bosch-home.co.nz

* Mo-Fr: 8.30 am to 5.00 pm

(exclude public holidays)

PL Polska, Poland

SA Kingdom Saudi Arabia,

Abdul Latif Jameel Electronics

and Airconditioning Co. Ltd.

BOSCH Service centre,

Kilo 5 Old Makkah Road

(Next to Toyota), Jamiah Dist.

P.O.Box 7997

Jeddah 21472

Tel.: [phone]

mailto:[e-mail]

www.aljelectronics.com.sa

SE Sverige, Sweden

BSH Home Appliances AB

Landsvägen 32

169 29 Solna

Tel.: [phone] local rate

Tel.: [phone] local rate

mailto:[e-mail]

www.bosch-home.se

SG Singapore,新加坡

BSH Home Appliances Pte. Ltd.

Block 4012, Ang Mo Kio Avenue 10

01-01 Techplace 1

Singapore 569628

Tel.: [phone]*

Fax: [phone]

mailto:[e-mail]

www.bosch-home.com.sg

* Mo-Fr: 8.30am to 7.00pm, Sa: 8.30am to 5.30pm

(exclude public holidays)

SI Slovenija, Slovenia

BSH Hišni aparati d.o.o.

Litostrojska 48

1000 Ljubljana

Tel.: [phone]

Fax: [phone]

mailto:[e-mail]

www.bosch-home.com/si

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Ital Thai Tower, 2034/31-39, 1st floor,

New Petchburi Road

Bangkapi, Huay Kwang

Bangkok, 10310

Tel.: [phone]*

www.bosch-home.com/th

* Mo-Sa: 8.00am to 6.00pm

(exclude public holidays)

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ve Ticaret A.S

Fatih Sultan Mehmet Mahallesi

Balkan Caddesi No: 51

34771 Ümraniye, Istanbul

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Fax: [phone]*

mailto:[e-mail]

www.bosch-home.com/tr

BSH Home Appliances Private Limited

台北市內湖區洲子街80號11樓

11F., No.80, Zhouzi St., Neihu Dist.

Taipei City 11493

Tel.: [phone]

Fax: [phone]

mailto:[e-mail]

Service-General SH.P.K.

rr.Magjistralja Ferizaj Prishtine

70000 Ferizaj

Tel:00381(0)290330723

Tel.: [phone]

mailto:[e-mail]

XS Srbija, Serbia

BSH Kućni aparati d.o.o.

15th Road Randjespark

Private Bag X36, Randjespark

1685 Midrand – Johannesburg

Tel.: [phone]

Fax: [phone]

mailto:[e-mail]

www.bosch-home.com/za

[e-mail]

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