YKYI GD255
YKYI Cordless Vacuum Cleaner User Manual
Model: GD255
Introduction
Thank you for choosing the YKYI Cordless Vacuum Cleaner. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new vacuum cleaner. Please read it thoroughly before use and keep it for future reference.

Image: The YKYI Cordless Vacuum Cleaner, showcasing its sleek design and main components.
Important Safety Instructions
To reduce the risk of fire, electric shock, or injury, always follow basic precautions when using an electrical appliance.
- Read all instructions before using the appliance.
- Do not use outdoors or on wet surfaces.
- Do not allow to be used as a toy. Close attention is necessary when used by or near children.
- Use only as described in this manual. Use only manufacturer’s recommended attachments.
- Do not use with damaged cord or plug. If appliance is not working as it should, has been dropped, damaged, left outdoors, or dropped into water, return it to a service center.
- Do not pull or carry by cord, use cord as a handle, close a door on cord, or pull cord around sharp edges or corners. Do not run appliance over cord. Keep cord away from heated surfaces.
- Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
- Do not handle plug or appliance with wet hands.
- Do not put any object into openings. Do not use with any opening blocked; keep free of dust, lint, hair, and anything that may reduce air flow.
- Keep hair, loose clothing, fingers, and all parts of body away from openings and moving parts.
- Do not pick up anything that is burning or smoking, such as cigarettes, matches, or hot ashes.
- Do not use without dust cup and/or filters in place.
- Turn off all controls before unplugging.
- Use extra care when cleaning on stairs.
- Do not use to pick up flammable or combustible liquids, such as gasoline, or use in areas where they may be present.
- Store the appliance indoors. Put away after use to prevent accidents.
- Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
- Use appliances only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
Package Contents
Please check the package contents to ensure all items are present and in good condition.
- YKYI Cordless Vacuum Cleaner Main Unit
- Foldable Aluminum Tube
- Motorized Brush Head
- Crevice Tool
- Wall-Mounted Base
- Power Adapter/Charger
- User Manual (this document)
- Cleaning Brush for Dustbin
Setup and Assembly
Follow these steps to assemble your YKYI Cordless Vacuum Cleaner:
- Attach the Foldable Aluminum Tube: Insert the top end of the foldable aluminum tube into the main unit until it clicks securely into place.
- Connect the Motorized Brush Head: Attach the motorized brush head to the bottom end of the foldable aluminum tube, ensuring it clicks firmly.
- Charge the Battery: Before first use, fully charge the vacuum cleaner. Connect the power adapter to the charging port on the main unit or the wall-mounted base. The LED display will indicate charging status. A full charge takes approximately 4-5 hours.
- Install Wall-Mounted Base (Optional): Choose a suitable location near a power outlet. Secure the wall-mounted base to the wall using appropriate screws and anchors (not included). This provides convenient storage and charging.

Image: The YKYI Cordless Vacuum Cleaner in use within a bedroom, demonstrating its maneuverability.
Operating Instructions
Power On/Off and Mode Selection
- Power On: Press the power button on the handle to turn on the vacuum cleaner.
- Mode Selection: The LED display shows the current power level and operating mode. Press the mode selection button to cycle through the three available modes:
- Eco Mode: Provides quiet daily upkeep and extends battery life up to 50 minutes. Ideal for light cleaning.
- Standard Mode: Balanced suction for general cleaning and effective pet hair removal.
- Turbo Mode: Maximum suction power (40,000Pa) for ground-in messes and deep cleaning.
- Power Off: Press the power button again to turn off the vacuum cleaner.
Using the Foldable Design
The ergonomic foldable aluminum tube bends 180° to easily clean under furniture like beds and tables without needing to bend over. Simply press the hinge release button on the tube to activate the folding mechanism.
LED Headlights
The integrated LED headlights on the motorized brush head illuminate hidden dust and debris under furniture, ensuring thorough cleaning in dimly lit areas.
Handheld Conversion
To convert to a handheld vacuum, press the release button where the main unit connects to the tube. This allows for versatile cleaning of ceilings, car interiors, sofas, and tight spaces. Attach the crevice tool for hard-to-reach areas.

Image: The YKYI Cordless Vacuum Cleaner in a living room, demonstrating its use on various floor types.
Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your vacuum cleaner.
Emptying the Dustbin
Empty the dustbin after each use or when the MAX fill line is reached. Press the dustbin release button, detach the dustbin, and empty its contents into a trash can. Use the provided cleaning brush to remove any stubborn debris.
Cleaning the Filters
The 6-stage HEPA filtration system requires regular cleaning to maintain suction power.
- Pre-Motor Filter: Remove the pre-motor filter from the dustbin. Tap it gently to remove loose dust. Rinse under cold water if necessary, ensuring it is completely dry before reinserting.
- HEPA Filter: The HEPA filter is located within the dustbin assembly. Remove it and tap off excess dust. Rinse under cold water only if heavily soiled, and allow it to air dry completely for at least 24 hours before reinstallation.
Important: Do not use hot water or detergents to clean filters. Ensure all filters are completely dry before reassembling the vacuum cleaner to prevent damage and maintain suction.
Cleaning the Roller Brush
The self-cleaning roller comb prevents hair wrap. However, periodically check the roller brush for tangled hair or debris. To clean:
- Turn off and unplug the vacuum cleaner.
- Release the roller brush cover on the motorized brush head.
- Remove the roller brush. Use scissors to cut away any tangled hair or threads.
- Clean any debris from the brush housing.
- Reinsert the roller brush and secure the cover.
Troubleshooting
If you encounter issues with your vacuum cleaner, refer to the following table for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Vacuum does not turn on. | Battery is not charged. Power button not pressed correctly. | Charge the battery fully. Press the power button firmly. |
| Low suction power. | Dustbin is full. Filters are clogged. Blockage in the tube or brush head. | Empty the dustbin. Clean or replace filters. Check for and remove any blockages. |
| Brush roll not spinning. | Hair or debris tangled in brush roll. Brush roll motor issue. | Clean the brush roll. Contact customer support if issue persists. |
| Short battery runtime. | Battery not fully charged. Operating in Turbo mode frequently. Battery degradation. | Ensure battery is fully charged. Use Eco or Standard mode for longer runtime. Contact customer support for battery replacement if needed. |
If the problem persists after trying these solutions, please contact YKYI customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | YKYI |
| Model Name | GD255 |
| Special Feature | HEPA, High Power, Foldable Design, LED Display |
| Filter Type | HEPA Filter (6-stage filtration) |
| Included Components | Crevice Tool, Cordless Vacuum Cleaner, Wall-Mounted Base, Cleaning Brush |
| Cordless | Yes |
| Capacity | 1 Liters (Dustbin) |
| Form Factor | Stick, Handheld (convertible) |
| Color | Blue |
| Product Dimensions | 14"L x 9"W x 9"H |
| Item Weight | 1 pounds |
| Suction Power | Up to 40,000Pa |
| Motor Speed | 90,000 RPM |
| Battery | 2500mAh*7 Lithium Battery (included) |
| Runtime | Up to 50 minutes (Eco mode) |
Warranty and Support
Your YKYI Cordless Vacuum Cleaner comes with a 2-year extended protection plan. This warranty covers defects in materials and workmanship under normal use. For warranty claims, technical support, or any questions not covered in this manual, please contact YKYI customer service.
Please have your model number (GD255) and purchase information ready when contacting support.