AF 660 Duplex - Oven CASO - Free user manual and instructions
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| Product Type | Air Fryer |
| Brand | CASO |
| Model | AF 660 Duplex |
| Power Consumption | 1700 W |
| Power Supply | 220-240 V~, 50-60 Hz |
| External Dimensions (W x H x D) | 30 x 37 x 38.5 cm |
| Net Weight | 6.4 kg |
| Maximum Capacity | Up to 1200 g (frozen fries) |
| Temperature Range | 40 °C to 200 °C |
| Timer | 1 to 480 minutes (depending on program) |
| Automatic Programs | 12 programs (Steak, Chicken, Fish, Shrimp, Bacon, Snacks, Frozen Fries, Homemade Fries, Vegetables, Root Vegetables, Cakes, Keep Warm) |
| Special Functions | Dehydration, Keep Warm, Shake Reminder (SHAKE), Removable Duplex Partition |
| Basket and Tank Material | Steel with non-stick coating |
| Dishwasher Safe | Yes (basket and tank) |
| Included Accessories | Inner basket with handle, Tank, Duplex Partition, Instruction Manual |
| Safety | Safety switch (stops if tank removed), Overheat protection |
| Warranty | 24 months (Germany, Austria, Netherlands) |
| Article Number | 3181 |
| Intended Use | Domestic: heating, defrosting, oil-free frying, cooking, roasting, grilling, drying |
| Control Type | Electronic touch panel with digital display |
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USER MANUAL AF 660 Duplex CASO
(Guarantor)
CASO GmbH
Raiffeisenstraße 9
D-59757 Arnsberg
International Service Hotline:
Tel.: +49 (0) 29 32 / 80 55 4 - 99
Fax: +49 (0) 29 32 / 80 55 4 - 77
eMail: kundenservice@caso-design.de
Homepage: www.caso-design.de
11.1 General....32 11.2 Information on this manual 32 11.3 Warning notices 32 11.4 Limitation of liability 33 11.5 Copyright protection....33 12 Safety 33 12.1 Intended use....33 12.2 General Safety information 34 12.3 Sources of danger....35 12.3.1 Danger of Burning 35 12.3.2 Danger of Fire 36 12.3.3 Dangers due to electrical power 37 13 Commissioning 37 13.1 Safety information....37 13.2 Delivery scope and transport inspection....37 13.3 Unpacking....38 13.4 Disposal of the packaging....38 13.5 Setup location requirements....38 13.6 Electrical connection....38 14 Design and Function....39 14.1 Complete overview ....39 14.2 Control panel....40 14.3 Automatic programs....40 14.4 Warning notices on device....41 14.5 Rating plate....41 14.6 Assembling / Deassembling....41 15 Operation and Handling....42 15.1 Before initial use 42 15.2 Security switch....42 15.3 Overheating protection....42 15.4 Operation....42 15.5 Advices for frying....44 16 Cleaning and Maintenance 46 16.1 Safety information....46 16.2 Cleaning....47 17 Troubleshooting....47 17.1 Safety notices....47 17.2 Causes and rectification of faults....47 18 Disposal of the Old Device....48 19 Guarantee ....48 20 Technical Data....49 21 Mode d'emploi....51 21.1 Généralités....51
21.2 Informations relatives à ce manuel ....51
21.3 Avertissements de danger ....51
25.3 Système anti-surchauffe 62
25.4 Mise en service....62
25.5 Astuces de friture....64
81.3 Unpacking....178
82.6 Assembly/disassembly....182
84.2 Cleaning....188
NOTE
Original Operating Manual
AF 660 Duplex
Air fryer

11 Operating Manual
11.1 General
Please read the information contained herein so that you can become familiar with your device quickly and take advantage of the full scope of its functions.
Your air fryer will serve you for many years if you handle it and care for it properly.
We wish you a lot of pleasure in using it!
11.2 Information on this manual
These Operating Instructions are a component of the fryer (referred to hereafter as the Device) and provide you with important information for the initial commissioning, safety, intended use and care of the device.
The Operating Instructions must be available at all times at the device. This Operating Manual must be read and applied by every person who is instructed to work with the device:
- Commissioning
- Operation
- Troubleshooting and/or
- Cleaning
Keep the Operating Manual in a safe place and pass it on to the subsequent owner along with the device.
11.3 Warning notices
The following warning notices are used in the Operating Manual concerned here.
⚠ DANGER
Danger
A warning notice of this level of danger indicates a potentially dangerous situation.
If the dangerous situation is not avoided, this can lead to death or serious injuries.
▶ Observe the instructions in this warning notice in order to avoid the danger of death or serious personal injuries.
⚠️ WARNING
Warning
A warning notice of this level of danger indicates a possible dangerous situation.
If the dangerous situation is not avoided, this can lead to serious injuries.
▶ Observe the instructions in this warning notice in order to avoid personal injuries.
▲VORSICHT
Attention
A warning notice of this level of danger indicates a possible dangerous situation.
If the dangerous situation is not avoided, this can lead to slight or moderate injuries.
▶ Observe the instructions in this warning notice in order to avoid personal injuries.
HINWEIS
Please note
A notice of this kind indicates additional information, which will simplify the handling of the machine.
11.4 Limitation of liability
All the technical information, data and notices with regard to the installation, operation and care are completely up-to-date at the time of printing and are compiled to the best of our knowledge and belief, taking our past experience and findings into consideration.
No claims can be derived from the information provided, the illustrations or descriptions in this manual. The manufacturer does not assume any liability for damages arising as a result of the following:
• Non-observance of the manual - Uses for non-intended purposes - Improper repairs - Use of unauthorized spare parts - Technical alterations, modifications of the device
Modifications of the device are not recommended and are not covered by the guarantee. All translations are carried out to the best of our knowledge. We do not assume any liability for translation errors, not even if the translation was carried out by us or on our instructions. The original German text remains solely binding.
11.5 Copyright protection
This document is copyright protected.
CASO GmbH reserves all rights, including those for photomechanical reproduction, duplication, and distribution using special processes (e.g., data processing, data carriers, data networks), even in part.
Subject to content and technical changes.
12 Safety
This chapter provides you with important safety notices when handling the device. The device complies with the required safety regulations. Improper use can result in personal injury or property damage.
12.1 Intended use
This device is intended only for use in households in enclosed spaces for heating, defrosting, keeping warm, fat-free frying, cooking, roasting, baking, grilling, or drying of food. This device is intended for use in the household and for similar applications such as:
- in kitchens for employees in shops, offices, and other commercial areas; • in B&Bs; • in agricultural estates;
- by customers in hotels, motels, and other residential establishments.
Uses for a different purpose or for a purpose which exceeds this description are considered incompatible with the intended or designated use.
▲ WARNING Warning
Danger due to unintended use! Dangers can emanate from the device if it is used for an unintended use and/or a different kind of use.
▶ Use the device exclusively for its intended use. ▶ Observe the procedural methods described in this Operating Manual.
Claims of all kinds due to damages resulting from unintended uses are excluded. The user bears the sole risk.
12.2 General Safety information
Please note
Please note
Please observe the following general safety notices with regard to the safe handling of the device.
▶ Examine the device for any visible external damages prior to using it. Never put a damaged device into operation. ▶ If the power cable or plug are damaged, then they must be replaced by the manufacturer or its service agent in order to avoid a hazard. ▶ This device may be used by children aged 8 and above, if they are supervised or have been instructed at to the safe use of the device and have understood the resulting hazards. ▶ The device and its connecting cable must be kept away from children who are less than 8 years old. ▶ Cleaning and maintenance by the user must not be performed by children unless they are at least 8 years old and are supervised. ▶ Children are not allowed to play with the device. ▶ The device may be used by individuals with reduced physical, sensory or mental capabilities or a lack of experience and / or knowledge of their use if they are supervised or have been instructed at to the safe use of the device and have understood the resulting hazards. ▶ Do not leave the device unsupervised when it is in operation. ▶ Do not use accessories which are not recommended by the manufacturer, as this can cause damage to your device or personal injury. ▶ Do not use outdoors. ▶ Only customer service departments authorized by the manufacturer may carry out repairs on the device, as otherwise the guarantee entitlements will be null and void in the event of any subsequent damages. Improperly performed repairs can cause considerable dangers for the user.
Please note
Please note
▶ Defective components must always be replaced with original replacement parts. Only such parts will guarantee that the safety requirements are fulfilled. ▶ Do not let the cord hang over the end of a table or do not place it on a hot surface. ▶ Do not place the device on or near by a gas oven, electronic oven or into a heated oven. ▶ Do not put anything on top of the appliance. This disrupts the airflow and affects the hot air frying result. ▶ The device automatically changes to standby mode after the cooking time is over or after 5 min. without using it. Unplug the device then to turn it off completely. ▶ Use the device only for frying, baking and re-heating. ▶ Make sure that the handle was properly secured to the basket and anchored. ▶ Do not submerge the heating unit, cord or plug in water or other liquids to prevent electrical shock. ▶ Make sure that the vents on the cover are not covered with other items. ▶ Unplug the device after use. Then you can move, clean or maintain it. ▶ Do not unplug the device by pulling the cord. ▶ In case of professional use, inappropriate use or failure to comply with the instructions, the manufacturer accepts no responsibility and the guarantee will be void.
12.3 Sources of danger
12.3.1 Danger of Burning
⚠️ WARNING
Warning: The device can become very hot.
▶ Do not touch the frying basket, frying pot, and the air outlet during frying or when the unit is still hot! ▶ Do not touch the inside of the device during operation or when the unit is still hot. ▶ Do not move the device if it contains hot food.
▲WARNING Warning
▶ Use cooking gloves or pot holders when you come into contact with the hot device. ▶ Do not move the appliance during use. ▶ Fry only in the enclosed frying pot. Use this frying pot exclusively with this fryer. Never use the frying pot for any other purpose. ▶ Unplug the device after use. After that you can move, clean, or maintain it. ▶ Let the appliance cool down before you remove items, add items, or clean it. ▶ Do not put wet food into the device. ▶ Remove all ice from frozen food to be fried. ▶ Be aware of the hot steam rising from the air outlet.
12.3.2 Danger of Fire
▲WARNING Warning
There is a risk of fire if the appliance is used incorrectly.
Adhere to the following safety instructions in order to avoid a risk of fire:
▶ This device produces high temperatures, which can lead to burns. ▶ This device works on hot air. Do not fill it with oil or fat! Danger of burns!
▶ Make sure that no flammable objects are above or near the device.
▶ If the oil catches fire, immediately pull the plug from the socket and close the lid of the device.
▶ Do not install unless the frying basket is completely free of water.
▶ Place the food into the frying basket and avoid that they touch the heating elements.
▶ If the device catches fire, immediately remove the plug out of the outlet (if possible) and extinguish the flames.
12.3.3 Dangers due to electrical power
⚠DANGER
Danger
Mortal danger due to electrical power!
Mortal danger exists when coming into contact with live wires or subassemblies! Observe the following safety notices to avoid dangers due to electrical power:
▶ Avoid any liquid getting into the device to avoid an electrical shock or short circuit. ▶ Do not operate this device if it has a damaged cable or plug, if it is not working properly or if it has been damaged or dropped. If the power cable or plug are damaged, then they must be replaced by the manufacturer or its service agent in order to avoid a hazard. ▶ Do not open the housing on the device under any circumstances. There is a danger of an electrical shock if live connections are touched and the electrical or mechanical structure is altered. In addition, functional faults on the device can also occur. ▶ Do not submerge the heating unit, cord or plug in water or other liquids to prevent electrical shock.
13 Commissioning
This chapter provides you with important safety notices during the initial commissioning of the device. Observe the following notices to avoid dangers and damages:
13.1
Safety
information
⚠️ WARNING
Warning
▶ Packaging materials may not be used for playing. There is a danger of suffocation.
13.2 Delivery scope and transport inspection
As a rule, the Fryer is delivered with the following components:
- AF 660 Duplex
- Frying pot
- Duplex-divider
• Inner Frying basket with handle - Operating Instructions
NOTE
Please note
▶ Examine the shipment for its completeness and for any visible damages. ▶ Immediately notify the carrier, the insurance and the supplier about any incomplete shipment or damages as a result of inadequate packaging or due to transportation.
13.3 Unpacking
To unpack the device, proceed as follows:
- Place the box containing the unit on a countertop or table.
- Remove the device from the box and remove the packaging.
13.4 Disposal of the packaging
The packaging protects the device against damages during transit. The packaging materials are selected in accordance with environmentally compatible and recycling-related points of view and can therefore be recycled.
Returning the packaging back to the material loop saves raw materials and reduces the quantities of accumulated waste. Take any packaging materials that are no longer required to “Green Dot” recycling collection points for disposal.

NOTE
Please note
If possible, keep the original packaging for the device for the duration of the guarantee period, so that the device can be re-packaged properly in the event of a guarantee claim.
13.5 Setup location requirements
To ensure safe and trouble-free operation, the setup location must meet the following requirements:
- The device must be placed on a firm, flat, horizontal, and heat-resistant surface with sufficient load-bearing capacity.
- Choose a location where children cannot reach the device.
- The device is not intended to be installed in a wall or built-in cupboard.
- Do not place the device in a hot, wet, or extremely damp environment, or near flammable materials.
- WARNING! Do not block the ventilation openings on the device housing.
- The device requires adequate airflow to operate correctly. Ensure the back of the device is at least 10 cm from the wall, and keep 10 cm of free space on the other sides.
- The electrical socket must be easily accessible so the power cord can be disconnected quickly in an emergency.
- Installation and assembly of this device in non-stationary locations (e.g., on ships) must be carried out by specialist companies or electricians, provided they ensure the prerequisites for safe use.
13.6 Electrical connection
To ensure safe and trouble-free operation, observe the following instructions for the electrical connection:
- Before connecting the device, compare the connection data (voltage and frequency) on the rating plate with those of your electrical network. These must match to prevent damage. If in doubt, consult a qualified electrician.
Do not use an extension cord. If you accept liability, only use an extension cord that is in good condition and suitable for the appliance's power.
- The use of multiple plugs or gangs is prohibited because of the danger of fire that is involved with this.
- Make sure that the power cable is undamaged and has not been installed under the ice maker or over hot or sharp surfaces.
- The electrical outlet must be protected by a 16A safety cut-out switch.
- The electrical safety of the device is only guaranteed if the device is connected to a properly installed protective conductor system. If in doubt, have the house installation checked over by a qualified electrician. The manufacturer cannot be made responsible for damages that are caused by a missing or damaged protective conductor.
14 Design and Function
This chapter provides you with important safety notices on the design and function of the device.
14.1 Complete overview

- Housing
- Control panel
- Inner Frying basket 3a.Removable Duplex-divider
- Button for release of frying basket (with cover)
- Handle
- Frying pot for frying basket
- Air outlet
- Power cord
- Recessed handle
14.2 Control panel

- Display of temperature (in °C/°F)
- Display of SHAKE-Reminder
- Select time/temperature; Change of °C/°F
- Activate the SHAKE-Reminder
- On/off button
- Display of time (in min.)
- Reduce of time / temperature
- Increase of time/ temperature
- Start/pause button
- Automatic programs
14.3 Automatic programs
| Program | Temp. in °C (Range) | Time in min. (Range) | |
![]() | Steak | 200(50-200) | 10(1-60) |
![]() | Chicken | 180(50-200) | 10(1-60) |
![]() | Fish | 180(50-200) | 15(1-60) |
![]() | Schrimps | 190(50-200) | 10(1-60) |
![]() | Bacon | 160(50-200) | 9(1-60) |
![]() | Snacks | 180(50-200) | 10(1-60) |
![]() | Frozen fries(FROZEN) | 200(50-200) | 30(1-60) |
![]() | Homemade fries(FRESH) | 200(50-200) | 35(1-60) |
![]() | Vegetables | 170(50-200) | 20(1-60) |
![]() | Root vegetables | 200(50-200) | 25(1-60) |
![]() | Cakes | 160(50-200) | 20(1-60) |
![]() | Keep warm | 60(50-90) | 30(1-60) |
![]() | Dehydrate | 40(40-70) | 180(1-480)* |
* in 10 min. steps
14.4 Warning notices on device

▲CAUTION ATTENTION
Danger due to hot surface! The surfaces of the device can become extremely hot.
▶ Do not touch the hot surfaces of the device. Danger of burns! ▶ Do not set or lay any items on the device.
14.5 Rating plate
The rating plate with the connection and performance data can be found beneath the device.
14.6 Assembling / Disassembling
The cover over the frying basket release button protects against accidentally unlocking it. Flip the cover open, hold the button down and remove the frying basket from the container by pulling the handle upwards.
Assembling: Place the inner frying basket into the pot until it latches. Close the cover above the button for release of frying basket.

If necessary, slide the duplex partition into the inner basket.

NOTE
Please note
The handle is attached to the inner frying basket, not to the outer container. Only press the basket release button when the container with the basket is standing flat on a level, heat-resistant surface. Never press the release button while carrying the container with the frying basket, otherwise the container could fall. Remove the frying basket from the container only for taking out the cooked food or for cleaning.
15 Operation and Handling
This chapter provides you with important notices with regard to operating the device. Observe the following notices to avoid dangers and damages:
15.1 Before initial use
- Thoroughly clean the basket and the pot with hot water, some washing-up liquid and a non-abrasive sponge. The inner frying basket can also be washed in the dishwasher.
- Wipe the inside and outside of the appliance with a moist cloth.
- Dry the parts thoroughly after you have flushed them and put the unit back together.
- For further cleaning instructions, please refer to the chapter "Cleaning and Maintenance".
15.2 Security switch
This appliance is equipped with a secure switch. When pulling the pot out of the fryer during its working, the fryer will stop heating and the timer will hold on automatic until the pot is put back.
HINWEIS
Please note
It's better to pull out the pot for no longer than 30 seconds, to make sure the stable temperature inside the pot to have better results.
15.3 Overheating protection
The device has an overheating protection. In case of too high temperature inside the device close to electronic components, the device will switch off automatically. Pull the plug and let the device cool down at least for half an hour.
15.4 Operation
- Connect the main plug into a socket. The device beeps and the panel lights up once. Then the on/off button lights up constantly.
- Put your food into the inner frying basket and slide the container with the frying basket into the appliance.
- Press the on/off button to switch on the appliance.
- Select one of the 12 automatic programmes. The symbol of the programme starts flashing and the preset temperature and time appear in the display.
- You can also adjust the temperature individually by pressing the Temp-Time button.
The temperature flashes in the display. You can now adjust it with the buttons.


- Press the Temp Time button a second time to adjust the time. The time flashes on the
display. You can now adjust it with the

buttons.

- Press the button to start the process.
- Pause/continue: To pause the process, press the ▶ button. Press the button again to continue.
Cancel/Switch off: To cancel the operation and switch off the unit, press the button.

- After the set time has elapsed, a beep sounds and "End" appears in the display.
NOTE
Please
note
▶ If you keep the 📄 or ▼ button pressed, the value increases/decreases faster.
▶ Press and hold the Temp-Time button for 3 seconds to switch between the temperature in °C and °F.
▶ Never fill the basket exceed the MAX-amount indicated in the table, as this could affect the quality of the end result.
▶ After the fryer has started its program you will still be able to adjust the time and temperature at any moment by pressing the appropriate buttons.
⚠️ WARNING
Warning
▶ Never use the frying pot without the frying basket in it. ▶ Hold the container by the handle only, as the appliance and the container may become hot during cooking. ▶ Do not press the basket release button during shaking of the ingredients or when removing the frying pot out of the device. Risk of burns! ▶ When removing the container, be aware of the hot steam that may escape. ▶ The frying basket and the food are very hot!
Quick Start:
If you directly press the button after point 3. without selecting a program, the device immediately starts frying in the Quick Start mode (Temperature: 200°C, cooking time: 5 min.). While frying you can still adjust the time and temperature (see above).
SHAKE- Reminder:
To ensure that even large quantities or overlapping foods (such as chips) are cooked evenly, they should be shaken 1-3 times during the process, depending on the quantity
and cooking time. The "SHAKE-Reminder" can be activated manually for each programme (minimum cooking time 11 min.) and notifies you when you should turn over your food.
You can activate the "SHAKE-Reminder" by pressing the button before starting the cooking programme. When the "SHAKE-Reminder" is activated, ((SHAKE)) lights up in the display. The "SHAKE-Reminder" can be deactivated or reactivated again at any time during the cooking programme by pressing the button.
The notification sounds every 10 minutes (maximum 3 times) if it is activated. If the "SHAKE- Reminder" sounds and (flashes) on the display, please proceed as follows:
- To shake or turn over the ingredients, pull the frying pot with basket out of the appliance by the handle (make sure that you do not press the basket release button). The appliance stops automatically as soon as the container is pulled out and does not continue until it is put back in.
- Shake or turn over the ingredients by fork or tongs.
- Then put the frying pot back into the device.
The "SHAKE-Reminder" sounds for 1 minute. During this time, the operation continues normally. If no action has been taken after 1 minute, the notification ends and the appliance continues the hot air process.
After frying:
- Pull out the frying pot with frying basket using the handle and put it on a heat-resistant surface.
- Check, whether the food is cooked through. If not you can slide the frying pot back into the fryer and continue the process for a few minutes.
- To remove the ingredients, press the basket release button and lift the inner frying basket out of the frying pot.
- The frying basket and the ingredients are hot. You can use a fork (or tongs) to take out the ingredients. To remove large or fragile ingredients, use a pair of tongs to lift the ingredients out of the basket.
- Alternatively, you can keep your cooked food warm with the KEEP-WARM programme. To do this, press the corresponding button and adjust the keep-warm time if necessary.
Fries-program:
By pressing the button again, you can choose between two preset values for the chips programme. The respective selection is shown in the display next to the time.
FROZEN: Preset for deep-frozen (frozen) chips
FRESH: Preset for homemade, fresh chips
15.5 Advices for frying
- Smaller ingredients usually require a slightly shorter preparation time than larger ingredients.
- A larger amount of ingredients requires a slightly longer preparation time, a smaller amount of ingredients only requires a slightly shorter preparation time.
- Shaking the ingredients optimises the end result and can help prevent unevenly fried ingredients.
- To make fresh fries, use floury potatoes and cut them into 10 x 10 cm thick strips. Soak them in water for about 30 minutes and then dry them well. Coat the potatoes with a bit of oil for a crispy result.
- Adding a small amount of oil to your food will make it crispier. Do not use more than 30 ml of oil.
- Oil sprays are great for spreading small amounts of oil evenly over food.
- Do not prepare extremely greasy ingredients such as sausages in the fryer.
- Some snacks that can be prepared in an oven can also be prepared in the fryer.
We recommend the following quantities and settings:
| Food | Quantity (max.) | Progr. | Temp. (°C) | Time (min.) | Note | SHAKE |
| French fries (frozen) | 500 g1000 g1200 g | ![]() | 200 | 253035 | Yes | |
| Homemade fries | 500 g1000 g | ![]() | 200 | 3035 | Cut potatoes into strips approx. 10 x 10 mm thick; soak in water for 30 min., dry and brush with oil | Yes |
| Stuffed courgettes | 2 halves | ![]() | 160-170 | 15-20 | Cut the courgettes in half and hollow them out, fill with meat, couscous, cheese, etc. as desired | |
| Stuffed peppers | 4 pcs | ![]() | 170 | 15-20 | Cut off the top of the peppers and remove the seeds, fill with quinoa, meat, vegetables, etc. as desired | |
| Baked vegetables (sweet potato, courgette, beetroot, carrots) | 750-1000g | ![]() | 200 | 25 | Chop and mix with oil and spices | Yes |
| Burger patty | 4 pcs à approx. 150 g | ![]() | 200 | 10-12 | ||
| Chicken nuggets | 1000 g | ![]() | 180 | 10-12 | ||
| Grilled chicken | 1300 g | ![]() | 200 | 50 | ||
| Lasagne | 400-500 g | ![]() | 170 | 20-25 | Place in a 20 x 8 x 15 cm ovenproof dish | |
| Pizza baguette 3 | pcs | ![]() | 175 | 10 | ||
| Homemade croutons | 750 g | ![]() | 180 | 8 | Dice the toast, mix with oil and spices | |
| Bacon 6 pcs | ![]() | 160 | 8-10 | |||
| Buns 4-6 pcs | ![]() | 190 | 8-10 | |||
| Bread | Dough for 1 loaf | ![]() | 180 | 30 | In an ovenproof dish (max. 20 x 20 cm) | |
| Muffins 9 pcs | ![]() | 160 | 15-20 | |||
| Cake | Dough for 1 cake | ![]() | 160 | 45-50 | Line a frying basket with baking paper and a cake ring (∅ approx. 20 cm) | |
| Homemade apple chips | 1 apple | ![]() | 40 | 200 | Cut into slices approx. 2 mm thick |
Please note
▶ When using the duplex divider, we recommend halving the maximum filling quantity to avoid excessive stacking and consequently bad cooking results. ▶ After half of the time, you can check the browning level and turn/shake the food. ▶ Please note that a different quantity can require an adjustment of time and temperature. ▶ Keep in mind that these settings are indications. As ingredients differ in origin, size, shape as well as brand, we cannot guarantee the best setting for your ingredients.
Warning
▶ Only use heat-resistant accessories in the appliance. The accessories used may be very hot after cooking. ▶ Never place baking paper or parchment paper in the deep fryer without putting food on it. The air circulation may cause the paper to lift up and touch the heating coils.
16 Cleaning and Maintenance
This chapter provides you with important notices with regard to cleaning and maintaining the device. Please observe the notices to prevent damages due to cleaning the device incorrectly and to ensure trouble-free operation.
16.1 Safety information
Attention
Please observe the following safety notices before you commence with cleaning the device:
The device must be cleaned at regular intervals. If the device is not maintained in a clean condition, this will have a detrimental effect on the service life of the device and can also result in a dangerous condition in the device as well as in the growth of fungus and bacteria. ▶ Clean the device directly after use. Extended waiting unnecessarily complicates cleaning and can make it impossible in extreme cases. Excessive accumulations of dirt can even damage the device under certain circumstances. The frying basket and pot are anti-stick coated. Do not use any aggressive or abrasive cleaning agents or solvents. Do not scrape off stubborn dirt with hard items.
16.2 Cleaning
- Remove the plug from the outlet and let the device cool down.
- The frying basket, duplex-divider and the frying pot can be washed in warm soapy water with a non-abrasive sponge. The inner frying basket can also be washed in the dishwasher.
- Dry the parts thoroughly after washing.
- If necessary, wipe the inside and outside of the appliance with a moist cloth. After cleaning, put the unit back together.
17 Troubleshooting
This chapter provides you with important notices with regard to operating the device. Observe the following notices to avoid dangers and damages:
17.1 Safety notices
Attention
Only qualified electricians, who have been trained by the manufacturer, may carry out any repairs on electrical equipment. Improperly performed repairs can cause considerable dangers for the user and damages to the device.
17.2 Causes and rectification of faults
The following table assists in localizing and rectifying minor faults.
| Problem | Solution |
| The device is not functioning. | Please check whether the power plug is properly plugged. |
| The process doesn’t start when start / stop is pressed. | Make sure that the frying pot is placed inside the device correctly. |
| The food is not fully cooked or is cooked unevenly. | If the inner frying basket is overfilled, the food will not be cooked sufficiently. Put smaller quantities in the frying basket. Shake or turn the food several times during the cooking time. Increase the cooking temperature or the cooking time. |
| The food is not crispy after cooking. | Spraying or brushing the food with a small amount of oil can increase the crispiness. |
| The baskets do not slide securely into the appliance. | Make sure that the inner frying basket is not overfilled with food.Make sure that the inner frying basket is firmly seated in the outer container. |
| White smoke comes out of the appliance. | When you use the appliance for the first time, you may notice white smoke. This is normal.Make sure that the container, frying basket and the inside of the hot air fryer are well cleaned and not greasy.When cooking greasy food, oil may get into the container of the frying basket. This oil produces white smoke and the container and frying basket may be hotter than usual.This is normal and does not affect the cooking process. Handle the baskets with care. |
| Dark smoke comes out of the appliance. | Immediately unplug the appliance from the mains. Dark smoke means food is burning or there is a problem with the electrical circuit. Wait until the smoke has cleared before removing the baskets. If the cause was not burnt food, contact customer service. |
| E1 is shown in the display. | The connection to the temperature sensor in the appliance is broken. Contact customer service. |
| E2 is shown in the display. | The temperature sensor in the device is defective. Contact customer service. |
Note
Please note
If you are unable to solve the problem with the steps shown above, please contact Customer Service.
18 Disposal of the Old Device
Old electric and electronic devices frequently still contain valuable materials. However, they also contain damaging substances, which were necessary for their functionality and safety. If these were put in the non-recyclable waste or were handled incorrectly, they could be detrimental to human health and the environment. Therefore, do not put your old device into the non-recyclable waste under any circumstances.

Please note
▶ Utilise the collection point, established in your town, to return and recycle old electric and electronic devices. If necessary, contact your town hall, local refuse collection service or your dealer for information. ▶ Ensure that your old device is stored safely away from children until it is taken away.
19 Guarantee
We provide a 24-month guarantee for defects caused by production or material faults, beginning on the date of purchase. Our guarantee is valid for Germany, Austria and the Netherlands. For all other countries, please contact us.
Your legal guarantee claims as per Art. 437 ff. German Civil Code (BGB) will remain unaffected by this. You may exercise your statutory guarantee rights free of charge. The guarantee does not cover damage caused by improper handling or use of the product or defects which have only a minor impact on the product's functionality or value. In addition to this, the guarantee also excludes parts which are subject to wear and tear; transport damages insofar as we are not responsible for them and damages caused by repairs which were not carried out by us.
This product has been constructed for non-commercial use (domestic use) and its performance is designed to meet the corresponding needs. The guarantee only covers commercial use insofar as it is comparable to domestic use. The product is not intended for any other type of commercial use.
In the case of legitimate complaints we may either repair the defective product or replace it with a defect-free product at our discretion. Obvious defects must be notified to us within 14 days of the product's delivery. Any further claims are excluded.
When making a guarantee claim please contact us before you return the product (always with the purchase receipt!). Our contact details ("Guarantor") are provided at the beginning of this instruction manual.
20 Technical Data
| Device Air fryer | |
| Name AF 660 Duplex | |
| Item No.: 3181 | |
| Mains data 220-240V~, 50-60Hz | |
| Power consumption 1700W | |
| External measurements (W x H x D): 30 x 37 x 38,5 cm | |
| Net weight 6,4 kg |
Instruction manual
21 Instruction manual
21.1 General
NOTE: Remark
25.3 Overheating protection system
30 Instructions for use
30.1 General

NOTE Indication
- Double-wall partition
NOTE Note

NOTE
Note
NOTE Tip
NOTE Note


NOTE
NOTE
82.6 Assembly/disassembly






























