1. Introduction
Thank you for choosing the Sokany SK-3390 Cordless Vacuum Cleaner. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new appliance. Please read this manual thoroughly before first use and retain it for future reference.
2. Important Safety Instructions
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, or injury.
- 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 to pick up flammable or combustible liquids, such as gasoline, or use in areas where they may be present.
- Do not pick up toxic material, such as chlorine bleach, ammonia, or drain cleaner.
- Do not use without dust bag and/or filters in place.
- Turn off all controls before unplugging.
- Use extra care when cleaning on stairs.
- Do not use to pick up hard or sharp objects such as glass, nails, screws, coins, etc.
- Prevent unintentional starting. Ensure the switch is in the off-position before connecting to battery pack, picking up or carrying the appliance.
- Recharge only with the charger specified by the manufacturer.
3. Package Contents
Carefully unpack your vacuum cleaner and check that all parts are present and in good condition. If any items are missing or damaged, contact your retailer.
- Main Vacuum Unit (Handheld)
- Extension Wand
- Motorized Floor Brush
- Crevice Tool
- Brush Nozzle
- Wall Mount / Charging Dock
- Power Adapter
- User Manual (this document)

Image 1: Overview of the Sokany SK-3390 Cordless Vacuum Cleaner, showing the main unit, various attachments, and the product packaging.
4. Product Overview
Familiarize yourself with the different parts of your Sokany SK-3390 vacuum cleaner.
- Main Unit: Contains the motor, dustbin, and control buttons.
- Dustbin: Collects dust and debris. Features a micro filter system.
- Power Button: Turns the vacuum on/off.
- Extension Wand: Connects the main unit to the floor brush or other attachments for extended reach.
- Motorized Floor Brush: Designed for cleaning various floor types, including carpets and hard floors. Features integrated LED lights.
- Crevice Tool: Ideal for narrow spaces, corners, and edges.
- Brush Nozzle: Suitable for upholstery, curtains, and delicate surfaces.
- Charging Port: Located on the main unit for connecting the power adapter.

Image 2: The Sokany SK-3390 vacuum cleaner configured as a stick vacuum and as a handheld unit with its charging base.
5. Setup and Assembly
5.1 Initial Charging
Before first use, fully charge the vacuum cleaner. Connect the power adapter to the charging port on the main unit and plug it into a wall outlet. The charging indicator light will illuminate. A full charge typically takes approximately 4-5 hours.
5.2 Assembling the Vacuum
- Attach the Extension Wand: Insert the top end of the extension wand into the main vacuum unit until it clicks securely into place.
- Attach the Floor Brush: Insert the bottom end of the extension wand into the motorized floor brush until it clicks securely.
- Attaching Accessories: For handheld use, detach the extension wand and directly attach the crevice tool or brush nozzle to the main unit.
5.3 Wall Mount Installation (Optional)
The included wall mount can be used for convenient storage and charging. Choose a suitable location near a power outlet. Secure the wall mount to the wall using appropriate screws and anchors (not included). Ensure the charging contacts align when placing the vacuum on the mount.
6. Operating Instructions
6.1 Powering On/Off
Press the power button on the main unit to turn the vacuum cleaner on. Press it again to turn it off.
6.2 Cleaning Modes
Your vacuum cleaner may feature different power modes (e.g., standard, max). Refer to the main unit's controls for mode selection, if applicable. The motorized floor brush is suitable for both hard floors and low-pile carpets.
6.3 Using Attachments
- Crevice Tool: Use for tight corners, edges, and between cushions.
- Brush Nozzle: Use for dusting surfaces, cleaning upholstery, and delicate items.
To switch attachments, press the release button on the main unit or extension wand, remove the current attachment, and firmly insert the desired one until it clicks.
7. Maintenance and Care
Regular maintenance ensures optimal performance and extends the lifespan of your vacuum cleaner.
7.1 Emptying the Dustbin
- Ensure the vacuum is turned off.
- Locate the dustbin release button, usually near the dustbin.
- Press the button to detach the dustbin from the main unit.
- Hold the dustbin over a trash can and open the bottom flap to empty the contents.
- Reattach the dustbin securely to the main unit.
7.2 Cleaning the Micro Filter
The micro filter should be cleaned regularly, ideally after every few uses, or when suction power decreases.
- Remove the dustbin as described above.
- Twist or pull to remove the filter assembly from the dustbin.
- Tap the filter gently over a trash can to remove loose dust.
- If necessary, rinse the filter under cold running water. Ensure it is completely dry before reinserting. Do not use hot water or detergents.
- Reassemble the filter and dustbin, then reattach to the main unit.
7.3 Cleaning the Brush Roll
Periodically check the motorized floor brush for tangled hair or debris.
- Turn off the vacuum and disconnect it from any power source.
- Detach the motorized floor brush from the extension wand.
- Locate the brush roll access cover (refer to product diagrams if available). Open it to remove the brush roll.
- Use scissors or a cleaning tool to cut and remove any tangled hair or fibers.
- Reinsert the brush roll and close the access cover securely.
8. 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 depleted. | Charge the battery fully. |
| Power button not pressed correctly. | Ensure the power button is pressed firmly. | |
| Low suction power. | Dustbin is full. | Empty the dustbin. |
| Filter is clogged. | Clean or replace the micro filter. | |
| Hose or attachments are blocked. | Check for and remove any blockages in the extension wand, floor brush, or attachments. | |
| Brush roll not spinning. | Hair or debris tangled in brush roll. | Clean the brush roll as described in the Maintenance section. |
| Brush roll mechanism is jammed. | Ensure no foreign objects are obstructing the brush roll. | |
| Vacuum stops during operation. | Battery is depleted. | Recharge the battery. |
| Overheating protection activated. | Turn off the vacuum and allow it to cool down for at least 30 minutes. Check for blockages. |
If the problem persists after trying these solutions, please contact customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | SOKANY |
| Model Number | SK-3390 |
| Power / Wattage | 2000 watts |
| Voltage | 22.2 Volts |
| Noise Level | 80 dB |
| Runtime | 40 minutes |
| Filter Type | Microfilter |
| Item Weight | 1.5 Kilograms |
| Special Features | Lightweight, Cordless |
| Recommended Uses | Carpeted floors, hardwood floors, stairs, pet hair removal |
10. Warranty and Support
This Sokany SK-3390 Cordless Vacuum Cleaner comes with a one-year warranty from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use.
The warranty does not cover damage caused by misuse, neglect, unauthorized repairs, or normal wear and tear. Please retain your proof of purchase for warranty claims.
For technical support, warranty service, or to inquire about replacement parts, please contact your local retailer or Sokany customer service.