CENTEK СТ-2741 Robot Vacuum Cleaner Instruction Manual

CENTEK СТ-2741 Robot Vacuum Cleaner

Product Information

The CT-2740, -2741 Robot Vacuum Cleaner is a Bluetooth-enabled device that can be controlled using the CENTEK app or QR code. It is designed to clean floors automatically and has a range of sensors to avoid obstacles and adjust its cleaning patterns accordingly. The device comes with a charging dock, power adapter, and user manual.

Product Usage Instructions

• Step 1: Place the robot vacuum cleaner on the floor and ensure that the charging dock is nearby.
• Step 2: Connect the robot vacuum cleaner to the CENTEK app using Bluetooth or scan the QR code on the device.
• Step 3: Use the app to control the robot vacuum cleaner. You can start or stop cleaning, adjust cleaning patterns, and set schedules for cleaning.
• Step 4: To clean specific areas, use the spot cleaning mode and move the device manually to the desired location.
• Step 5: To ensure optimal cleaning performance, clean the dustbin and filter regularly and replace them as needed.
• Step 6: When the battery is low, place the robot vacuum cleaner on the charging dock to recharge it.

Note:
Refer to the user manual for detailed instructions on how to use the device and troubleshoot common issues.

Dear Customer,
Thank You for purchasing a CENTEK brand product. We guarantee flawless function of this item, provided the guidelines of its operation are observed.

PURPOSE OF THE DEVICE
This device is designed for automatic cleaning of dust and dirt from various surfaces (tiled, parquet floors, carpets, etc.). Use the appliance for domestic purposes only in accordance with this manual. The device is not intended for commercial use. Use for any other purpose is considered improper. The manufacturer is not responsible for any damage caused by improper use of the device.

SAFETY PRECAUTIONS

ATTENTION
Use the appliance in strict accordance with this manual to avoid damage to the appliance and furniture, and to avoid personal injury.

• It is forbidden to operate the device at temperatures below 0 and above 40 °C on wet and sticky surfaces.
• Make sure there are no wires on the floor, including the cord from the vacuum cleaner’s charging station, which could tangle the vacuum cleaner.
• Remove fragile items (vases, plastic bags) from the floor that could damage the appliance.
• The appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of life experience or knowledge, unless they are supervised or instructed in the use of the appliance by a person responsible for their safety. Children must be supervised to prevent playing with the appliance.
• Do not place any objects on the vacuum cleaner when it is turned on.
• Do not allow clothes or body parts (hair, nails, etc.) to get caught in the brush or drive wheel of the appliance to avoid injury.
• Do not use the device to clean smoldering objects (cigarette butts, matches, etc.).
• The appliance is not intended for cleaning long pile carpets (such carpets require special cleaning methods).
• Do not allow the device to come into contact with hard and sharp objects (glass, nails, etc.).
• Do not carry the vacuum cleaner by holding it by the protective cover or shock buffer.
• Regular cleaning and maintenance of the vacuum cleaner and the docking station should only be carried out in the switched off or unplugged state.
• Do not wipe any part of the instrument with a wet cloth or use liquids to clean it.
• Use this instrument only with the supplied power supply.
• Unplug the power supply from the outlet before cleaning or servicing the instrument.
• The instrument has a built-in battery that can only be replaced by a qualified technician.
• Batteries must be removed from the instrument before disposal.
• Disconnect the device from the power supply before removing the battery.
• Dispose of batteries safely.
• To charge the batteries, only the power supply supplied with the device should be used.
• Batteries, docking stations and chargers supplied by third parties must not be used.
• Do not disassemble the battery and docking station.
• Do not place the docking station near heat sources (electric stoves, etc.).
• Do not wipe the docking station with a wet cloth or touch it with wet hands.
• Do not dispose of used batteries with household waste. Contact a specialized organization.
• If the power cord is damaged, stop using the appliance immediately and contact the service center to replace the cord.
• Transport the robotic vacuum cleaner in the switched-off state and in its original packaging.
• Before a long period of non-use, fully charge the battery and place the instrument in a cool, dry place. Charge the battery at least once every 2 months to prevent damage to the battery due to excessive discharge.

REMOVING THE BATTERY

• Make sure that the robot vacuum cleaner does not touch the docking station, and let the device run until the battery is completely discharged and turned off.
• Remove the battery cover screws.
• Remove the battery cover, disconnect the connector, and remove the battery.

BATTERY HANDLING

• The device has a built-in lithium battery. It is forbidden to disassemble the battery, expose it to increased loads and open flames.
• The battery is operated in a low air pressure environment which, if mistreated, may result in an explosion or leakage of flammable liquids and gases.
• Do not expose the battery to high temperatures or direct sunlight as this may cause the battery to explode.
• Do not use the device if the battery is visibly swollen.
• Dispose of the battery in accordance with local regulations. Do not dispose of the battery with normal household waste.
• Do not attempt to replace, disassemble or modify the battery yourself.
• Avoid increased mechanical stress and damage to the battery housing with hard objects. Damage to the battery may result in leakage, overheating, or fire.

Should You decide to transfer the appliance to another person, please pass the present manual over along with it.

APPLIANCE DESCRIPTION

CHARGING BASE

DRY CLEANING CONTAINER

WET CLEANING CONTAINER

REMOTE CONTROL

SCOPE OF SUPPLY

• Robot vacuum cleaner – 1 pc.
• Docking station – 1 pc.
• Charger – 1 pc.
• Container for dry cleaning – 1 pc.
• Container for wet cleaning – 1 pc.
• User manual – 1 pc.
• Left brush – 1 pc.
• Right brush – 1 pc.
• Brush for cleaning the filter – 1 pc.
• Microfiber for wet cleaning – 1 pc.
• Remote control – 1 pc.
• HEPA filter – 3 pcs.
• Foam filter – 3 pcs.
• Coarse filter – 2 pcs.

OPERATION

BEFORE STARTING WORK

1. Remove foam inserts on each side (fig. 1).
2. Place the docking station on a flat surface against a wall. Then connect the station to the mains.
3. Do not install the station in places exposed to direct sunlight.
4. Install the side brushes: align the left and right brushes with the marks on the bottom cover of the appliance (fig. 2). Insert the side brushes until you hear a click.

NOTE:
Make sure there is at least 1 m of free space around the docking station on the sides and at least 2 m at the front.

When installing, make sure that the power cord does not lie on the floor. Otherwise, the robot cleaner may catch it and disconnect the station from the network. The indicator light on the charging dock is on when power is supplied to the dock and turns off when the device is charging.

INSTALLING THE WET CLEANING CONTAINER

1. Install the wet cleaning mop (fig. 3).
2. Open the water tank, fill it with water, and firmly close it (fig. 4).
3. Install the container into the main unit (fig. 5).
4. Start Cleaning with the Wet Cleaning Function (fig. 6).

NOTE:
When the floor washing is completed, remove the wet cleaning container and clean out the water tank. Remove the wet cleaning mop and clean it.

NOTES:

• It is recommended to vacuum clean all floors at least three times before the first wet cleaning in order to prevent excessive accumulation and transfer of dust and dirt on the wet cleaning mop.
• In order to prevent corrosion and damage to the appliance please do not use any detergents or disinfectants in the water tank.
• Upon completion of wet cleaning remove the water tank, drain the remaining water and clean the wet cleaning mop to prevent the forming of mold and unpleasant odors.
• Remove the wet cleaning container if there is no need for wet cleaning.
• The wet cleaning container is only designed for use on smooth floors, as the mop can get caught on the carpet flooring and impede free movement of the vacuum cleaner.

CHARGING

• Automatic: after cleaning the robot vacuum cleaner will automatically return to the charging base to recharge. The button indicator will keep on flashing.
• Manual: in the standby mode press the button to send the vacuum cleaner back to the charging base to recharge. If the robot vacuum cleaner is stuck or cannot find the charging base, place it on the charging base manually to charge it.

NOTES:

• To extend the service life of the battery charge it for 5 hours for the first time.
• Please keep the charging base connected to the power supply, otherwise, the robot vacuum cleaner will not find the charging base.
• Close the Smart Life application to save the battery charge in your phone/tablet during the cleaning process.
• Furniture must be at least 98 mm high to allow the appliance to pass under it.

OPERATING PROCEDURE

TURNING ON THE POWER AND CHARGING

1. Place the robot vacuum cleaner on the charging base and turn on the power.
2. The robot vacuum cleaner will start up when the power switch is moved from the OFF to the ON position, the indicator light will turn on.
3. If the robot vacuum cleaner is not connected to the charging base, we recommend turning it off by sliding the power switch from the ON to the OFF position.

PAUSE

• During cleaning, press to suspend operation.
• Then press to resume cleaning or the button to stop the current cleaning session.
• Press the button twice to cause the appliance to return to the charging base.

SLEEP MODE
If cleaning is suspended and the robot vacuum cleaner has not been connected to the charging base for more than 10 minutes, it will enter the sleep mode; press any button to reactivate it.

PREPARING FOR OPERATION

TO START CLEANING

Press the button to start cleaning.
Once started the robot vacuum cleaner will leave the charging base. It will plan its cleaning route after scanning the surrounding area. The appliance will first start cleaning along the walls, then it will start moving in a zigzag pattern to cover the whole area thoroughly and efficiently.

NOTE:
The cleaning will not start if the battery charge is too low. Allow the vacuum cleaner to charge before cleaning restart. Please remove all cables from the floor (including the power cord of the charging base) to prevent powering off or damaging the robot vacuum cleaner or other connected devices.

CLEANING MODE
Press the button to start cleaning. After startup the device will plot the cleaning route and create a map after scanning the surroundings. After cleaning the robot vacuum cleaner will return to the charging base.

SPOT CLEANING (MOBILE APPLICATION REQUIRED)
After activating the spot cleaning mode the device will clean a 1.5×1.5 m rectangular area in a zigzag pattern. Upon completion the device will return to the center of the designated square. Use the mobile application to specify the location for spot cleaning.

AREA CLEANING (MOBILE APPLICATION REQUIRED)
Use the application to draw a certain zone for cleaning. After that the robot vacuum cleaner will only clean the designated area. After cleaning the device will automatically return to the charging base.

ROOM SELECTION FOR CLEANING (MOBILE APPLICATION REQUIRED)
Select specific rooms to be cleaned using the application. In this mode the robot vacuum cleaner will only clean the selected rooms. After cleaning the device will automatically return to the charging base.

NOTE:
Before you can use this feature, you must create a complete room map. Once the robot starts cleaning, it may move out of certain areas. Make sure that there are no obstacles blocking the robot’s access to the required rooms.

VIRTUAL WALL (MOBILE APPLICATION REQUIRED)
Press the virtual wall icon in the application to draw a virtual wall line. You can use the virtual wall to isolate certain areas which should not be cleaned.

NOTE:
The dry cleaning container can be used on both smooth flooring and on carpeted floor. Remove/secure all loose floor carpets in the area to be cleaned. The robot vacuum cleaner is designed to move over surfaces containing barriers the height of which does not exceed 20 mm.

APPLICATION

INTERFACE

1. Cleaning modes: «Smart Cleaning», «Designated Area Cleaning».
   NOTE: In order to change the cleaning mode, you will first have to terminate the current mode.

2. Charging: when the robot vacuum cleaner is in standby or auto cleaning mode, pressing the «Home» button will cause the device to search for the charging base for recharging.

SETUP
Press the «Setup» icon on the application’s home screen to go to the additional pages and select the relevant function for setting up.

1. Manual control: Use the direction buttons and the Pause/Start buttons to operate the vacuum cleaner.
2. Area management: «Reset» or «Save» the map.
3. Press «Call Robot»: the device will emit an audio signal.
4. Use the application to set the time of planned cleaning. Select and set up a planned cleaning and its commencement time.
5. Suction power: power settings – low, normal, high.
6. Water supply adjustment for wet cleaning: low, middle, high.
7. You can adjust the speaker volume and change the voice prompt language.

DEVICE SETUP

1. Press the upper right corner of the main control page to go to the robot vacuum cleaner setup page. Press the relevant position in the menu to go to the desired function.
2. Add Sharing: Enter the account name for the robot vacuum cleaner you want to share.
3. Delete Device: Press «Delete Device» to remove the linked device from the current account.

RESET WI-FI SETTINGS
If your phone cannot connect to the vacuum cleaner because you have changed the router configuration, forgotten the password, etc., press and hold the Pause button until a voice notification of Wi-Fi reset is emitted.

NOTE:

• Before setting up the Wi-Fi connection ensure that the device is connecting to a 2.4 GHz Wi-Fi network.
• Ensure that the robot vacuum cleaner is fully charged.
• The Wi-Fi status indicator is slowly blinking with a blue light.

WI-FI NETWORK

• Use the correct wireless network password.
• Do not use a VPN (virtual private network) or proxy server.
• The Wi-Fi router should support the 802.11b/g/n and lpv4 protocols.
• The router should have a frequency range 2.4 GHz or a dual bandwidth that includes the 2.4 GHz range. The robot vacuum cleaner does not support the 5 GHz frequency range.
• If the robot vacuum cleaner cannot connect to a dual bandwidth 2.4/5 GHz Wi-Fi network switch to 2.4 GHz in the Wi-Fi settings. You may switch back to default after setup is completed.
• When connecting to a hidden network please ensure that you have entered a correct —SSID network name (case sensitive) and connect to a 2.4 GHz wireless network.
• When using a wireless repeater ensure that the network name (SSID) and password are the same as the main network.
• Install a firewall and Wi-Fi router port so that the robot vacuum cleaner could connect to the application server.
• Network safety requirements: Use TKIP, PSK or AES/CCMP encrypted WPA and WPA2 type networks.

MAP MANAGEMENT

CREATING A ROOM MAP IN REAL-TIME MODE
A real-time room map would help you to easily understand the cleaning route and the ambient situation. A floor area map will be generated after cleaning. The map will be updated in real time mode after each cleaning in order to ensure optimal navigation.

CHANGING POSITION AND MAP RE-CREATION
When the robot vacuum cleaner and/or the charging base has been relocated or the surrounding environment significantly altered, the robot vacuum cleaner will try to establish locations and create a new map in accordance with the new surroundings.

1. If the remapping is successful the robot vacuum cleaner will resume cleaning.
2. Should remapping fail, the robot vacuum cleaner will recreate the map to ensure normal navigation for the new cleaning.
3. If the remapping fails and the original map has included data on a «virtual wall» (restricted area), then the robot vacuum cleaner will not resume cleaning to avoid crossing to the restricted area.

NOTE:
Ensure that the robot vacuum cleaner starts cleaning from the charging base every time. Do not move the robot vacuum cleaner too often during cleaning, if accidentally moved – return it to the initial position.

MAINTENANCE AND CARE

DISASSEMBLY AND CLEANING OF THE MAIN TURBO BRUSH

NOTE:
When reinstalling the main brush after cleaning ensure that it is properly latched in place.

CLEANING THE COARSE FILTER/FOAM FILTER/НЕРА FILTER
Remove the primary filter and the foam filter, you can wash the under a tap. The НЕРА filter can only be cleaned dry. After cleaning let the filters dry and reinstall them.

CLEANING THE SIDE BRUSHES

• Use the cleaning brush to remove the debris caught in the side brushes.
• Use a clean cloth to clean the side brushes.

NOTE:
To maintain high cleaning efficiency regularly clean the side brushes.

• If the side brushes are heavily contaminated, remove them and wash them under a tap.

NOTE:
The water temperature for cleaning should be below 60 ºC. Reinstall the brushes only after they have dried completely.

CLEANING THE TOP SIDE OF THE VACUUM CLEANER
If dust and fingerprints occur on the top of the vacuum cleaner, you can clean it with a clean cloth.

CLEANING THE DRY-CLEANING CONTAINER

• Press the container release latch and remove it.
• Press and hold the latch with one hand and open the lid with the other to open and clean the dust container.
• Clean the container.
• Remove the filters and clean them from dust.
• The container and filters can be washed under a tap. Reinstall the filters after cleaning and close the container lid, then reinstall the container in the vacuum cleaner.

NOTE:

• The container and filter may only be reinstalled after they are completely dry. Do not expose the HEPA filter to wet treatment.
• To avoid scattering the collected debris after removing the container, open the lid first, and only then shake out the contents of the collector bin.
• After the start of operation, we recommend cleaning the dust container every three days during the first month, and once a week after that. Do not expose the filters to direct sunlight.
• If you have washed the filters under a tap, please thoroughly dry them before the next use.

CLEANING THE WET TREATMENT CONTAINER

1. Press the wet treatment container release latch and remove it.
2. Remove the wet treatment mop.
3. Wash the mop under a tap, let it dry and reinstall it. Do not dry the mop in direct sunlight.

NOTE:

• Do not wash the mop together with the wet cleaning container.
• The water temperature should not exceed 60 degrees.
• Machine washing the mop is not recommended.

INSTALLING THE WET CLEANING CONTAINER SEAL

If you have previously accidentally removed the seal, reinstall it in its seat as shown in the picture above.

CLEANING THE OMNIDIRECTIONAL WHEEL

1. Turn the vacuum cleaner upside down.
2. Pull the wheel upwards to detach it from the mounting shaft.
3. Wash the wheel and shaft with water to remove hairs and debris.
4. Let the wheel dry and reinstall it; push it in to firmly seat it in place.

SENSOR CLEANING

Use a soft, dry cloth to clean the sensors.

NOTE:
Do not allow liquids, such as water or detergents, to contact the sensors.

POSSIBLE FAULTS

the instructions
The Cliff sensor operates incorrectly / the sensor is blocked/contaminated| Wipe the cliff sensor clean
The appliance is blocked| Remove obstacles
Collision bumper jammed| Check collision bumper
The vacuum cleaner is suspended| Set the vacuum cleaner back on the floor
Cannot connect to Wi-Fi| Wi-Fi is off. Reset Wi-Fi settings and repeat the connection procedure. Poor Wi-Fi signal. Ensure the device is within a Wi-Fi coverage zone with sufficient signal strength. With power supply turned on perform network connection (see manual sections “Adding a Device” or “Adding a Device Via an Access Point”), until a voice prompt is emitted. Only 2.4 GHz wireless networks are supported.
Cannot install application| Ensure that you phone’s OS version complies with the requirements: for iOS – ver. 9.0 and newer, for Android OS – ver. 5.0 and newer.
Robot vacuum cleaner will not charge| If the charging base not powered, ensure both ends of power cable are properly connected. If the contact is poor, clean the contact areas on the charging base and vacuum cleaner. Power sully will be restored when the power indicator lights.
Robot vacuum cleaner cannot find the charging base| Too many obstacles near the charging base. Move it to a free space. The device is too far from the charging base. Move it closer to the charging base.
Poor cleaning results| Remove large debris from the floor first. If some floor section is left out of the cleaning the robot vacuum cleaner will program its cleaning automatically.
Robot vacuum cleaners blocked| The device will actively try different ways to overcome the obstacle. Otherwise, it is recommended to aid it manually.
Noise during cleaning| The main brush, side brush or main wheels are probably jammed. Turn the vacuum cleaner off and clean these components. If the omnidirectional wheel is jammed, pull it out for cleaning.
Insufficient suction power| Dust container is filled up and requires emptying. Main brush is jammed and requires cleaning. Let the foam filter dry.

If the abovementioned methods will not allow clearing the malfunction, you can try the following:

1. Turn the power switch on the side of the device off and back on to restart the device;
2. If the appliance constantly moves backwards, please press the collision bumper with your hand and restart the appliance.
3. If the appliance does not move forward, check if the cliff sensor is blocked; clear the dust from the sensor window.
4. If the malfunction cannot be cleared by restarting the device, contact an authorized service center.

TECHNICAL CHARACTERISTICS

Dock station
Dimensions| 183x140x76 mm
Nom. input voltage| 220-240 V ~50/60 Hz
Nom. output voltage| DC 19 V  1 A
Rated power| 19 W
Charging time| up to 5 hours
WiFi network support| 2,4 HHz
---|---
Voice control| Alexa, Google Assistant, Tmall Genie, Xiaodu
Additional functions| Wet cleaning, smart management, scheduled cleaning, building a room map with saving

DISPOSAL
The chemicals contained in the battery pollute the environment. Before disposing of the device, remove the battery and take it to a specialized collection point. The battery may only be removed at the end of its service life. Never allow the battery to come into contact with metal objects.

CERTIFICATION DATA, GUARANTEE

The service life of this item is 5 years since the date of sale to the end user, provided the item will be used in strict accordance with the present manual and the applicable technical standards. Upon expiry of the service life please contact the nearest authorized service centre for suggestions as to further operation of the appliance. The manufacturing date of the appliance is integrated into the serial number (digits 2 and 3 – year, digits 4 and 5 – month of manufacture). If any questions related to appliance maintenance should arise, or if the appliance has malfunctions, apply to the CENTEK TM Authorized Service Center. The address of the service center can be found on the website https://centek.ru/servis.

Service support contacts:

• Phone: +7 (988) 24-00-178,
• VK: vk.com/centek_krd.

General Service Center: OOO «Larina-Servis», Krasnodar,
Phone: +7 (861) 991-05-42.

The product has the Certificate of Conformity.

MANUFACTURER AND IMPORTER INFORMATION

Imported to EAEU by:
OOO «Larina-Elektroniks». Address: Russia, 350080 Krasnodar, ul. Demusa, 14. Phone: +7 (861) 2-600-900.

DEAR VALUED CONSUMER!
The guarantee period for all appliances amounts to 12 months since the date of sale to the end consumer. With this Warranty Card the Manufacturer confirms the proper condition of the appliance and undertakes to repair, free of charge, all defects caused by the Manufacturer’s default.

GUARANTEE MAINTENANCE TERMS

1. The guarantee shall be valid if the following documentation conditions are observed:
   • The original Warranty Card shall be filled out correctly and clearly, indicating the of appliance model, serial number and sale date, the stamp of the seller company and signature of its representative shall be available, as well as the stamps on each coupon and the buyer’s signature in the Warranty Card.
   • The Manufacturer reserves the right to reject guarantee maintenance if the buyer fails to provide the abovementioned documents or if the information contained therein is incomplete, illegible or ambiguous.
2. The guarantee shall be valid if the following operating conditions are observed:
   • the appliance is used in strict accordance with the present manual;
   • the safety rules and requirements are observed.
3. The guarantee does not apply to regular maintenance, cleaning, installation and setup of the appliance at the owner’s location.
4. The guarantee does not apply in the following cases:
   • mechanical damage;
   • normal wear of the appliance;
   • non-observance of operation requirements or erroneous actions on the part of the user;
   • improper installation or transportation;
   • natural disasters (lightning, fire, flood, etc.), as well as any other causes beyond the Manufacturer’s or Seller’s control;
   • ingress of foreign objects, liquids or insects into the inside of the appliance;
   • repairs or modifications to the appliance by unauthorized persons;
   • use of the appliance for commercial purposes (loads exceeding normal domestic application), the connection of the appliance to utility and telecommunication networks incompliant with national technical standards;
   • failure of the following accessories, if replacement of these is allowed by design and does not involve disassembly of the appliance:
   • remote control units, rechargeable batteries, replaceable batteries (power cells), external power supply units, and chargers;
   • consumables and accessories (packaging, covers, slings, carry bags, mesh screens, blades, flasks, plates, supports, grilles, spits, hoses, tubes, brushes, nozzles, dust collectors, filters, smell absorbers);
   • for battery-powered appliances – operation with inappropriate or depleted batteries;
   • for rechargeable battery-powered appliances – any damage caused by improper battery charging and recharging.
5. The present guarantee is provided by the Manufacturer in addition to the consumer rights determined by the applicable legislation and does not limit these rights in any way.
6. The Manufacturer shall not be made liable for possible damage, directly or indirectly inflicted by CENTEK brand products on people, domestic animals, the consumer’s or third persons’ property if such damage is inflicted as the result of non-observance of appliance installation and operation requirements, deliberate or negligent actions (omission) by the consumer or third persons, as well as of force majeure circumstances.
7. Service centers will only accept appliances in a clean state (there should be no food residues, dust and other contamination on the appliance).

The Manufacturer reserves the right to change the design and specifications of the appliance without prior notice.

WARRANTY CARD

ATTENTION
Please require the seller to fill out the warranty card and tear-off coupons in full

• PRODUCT
• MODEL
• SERIAL NUMBER
• DATE OF SALE

This tear-off coupon is filled in by a representative of the seller.

• PRODUCT
• MODEL
• SERIAL NUMBER
• DATE OF SALE
• COMPANY-SELLER

The legal address of the seller’s company

• BUYER’S FULL NAME AND PHONE NUMBER

These tear-off coupons are filled in by a representative of the service center

• TYPE OF REPAIR
• DATE OF RECEIPT
• DATE OF ISSUE

References

• VK.com | VK
• Сервис - Официальный сайт Centek

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