Introduction
The uwant B400 Portable Carpet Cleaner is designed for deep cleaning carpets, rugs, upholstery, and various surfaces using advanced steam and hot water technology. This versatile 2-in-1 machine combines powerful suction with high-temperature cleaning to effectively remove stains and refresh fabrics.

Image: The uwant B400 Portable Carpet Cleaner main unit, flexible hose, cleaning nozzle, various brush attachments, and a bottle of textile cleaning solution are displayed on a white background.
Important Safety Instructions
Please read and understand all safety instructions before using the appliance to prevent electric shock, fire, or serious injury.
- Always unplug the appliance from the electrical outlet before cleaning or servicing.
- Do not immerse the appliance in water or other liquids.
- Use only uwant cleaning solutions designed for this appliance.
- Do not direct steam at people, animals, or electrical components. Steam is hot and can cause burns.
- Keep hair, loose clothing, fingers, and all parts of the body away from openings and moving parts.
- Do not use the appliance if the cord or plug is damaged.
- Store the appliance indoors in a dry place.
Package Contents
Verify that all items are included in the package:
- uwant B400 Main Unit
- Flexible Hose with Cleaning Nozzle
- Standard Bristle Brush Attachment
- Silicone Pet Scrub Brush Attachment
- Soft Fabric Pad Attachment
- Self-Cleaning Tool
- Textile Cleaning Solution (500ml)
Setup
- Unpack the Appliance: Remove all components from the packaging.
- Attach Hose: Connect the flexible hose securely to the main unit's hose port.
- Fill Water Tank: The uwant B400 features a 2-in-1 water tank design. Press the release button to detach the tank from the main unit. Open the lid and locate the 'Clean Water Tank Filling Port'. Fill this section with clean water (up to 1.2L capacity). For enhanced cleaning, add the recommended amount of uwant Textile Cleaning Solution to the clean water.
- Attach Cleaning Nozzle: Select the appropriate cleaning nozzle or brush attachment for your task and securely attach it to the end of the flexible hose.
- Power Connection: Unwind the power cord from its storage attachment on the side of the unit and plug it into a grounded electrical outlet.
Operating Instructions
The uwant B400 offers both hot water/steam cleaning and powerful suction for effective stain removal.
- Power On: Turn the dial on the main unit to the desired mode (Hot Water or Steam). The appliance will begin to heat the water, which takes approximately 30 seconds.
- Apply Solution/Steam: Press the capacitive button on the cleaning nozzle handle to dispense hot water or steam onto the stained area. Ensure the area is adequately saturated.
- Scrub: Use the selected brush attachment to gently scrub the stained area. The standard bristle brush is effective for general carpet cleaning, while the silicone pet scrub brush is ideal for pet hair and tougher spots. The soft fabric pad can be used for delicate surfaces.
- Suction: Release the capacitive button to stop dispensing water/steam. Move the cleaning nozzle slowly over the treated area to suction up the dirty water. The powerful 18Kpa suction ensures efficient removal of liquid and debris.
- Repeat if Necessary: For stubborn stains, repeat steps 2-4 until the stain is removed.
- Steam Cleaning (Hard Surfaces): For steam-only cleaning on hard surfaces or crevices, attach the dedicated steam brush head (if included) and use the steam mode.
Maintenance
Regular maintenance ensures optimal performance and longevity of your uwant B400.
- Empty and Clean Water Tank: After each use, detach the 2-in-1 water tank. Open the lid and carefully pour out the dirty water from the waste water section. Rinse both sections of the tank thoroughly with clean water. Allow the tank to air dry completely before reattaching.
- Clean Attachments: Remove all brush and nozzle attachments. Rinse them under running water to remove any debris or residue. For the cleaning nozzle, the top cover can be easily popped off for thorough cleaning. Allow all parts to air dry.
- Self-Cleaning Function: To clean the internal hose, attach the self-cleaning tool to the nozzle handle. Fill the clean water tank with clean water (no solution needed for this step). Run the appliance in hot water mode, allowing water to flush through the hose and into the dirty water tank.
- Storage: Once all components are dry, reassemble the appliance. Wrap the flexible hose around the base and secure the power cord using its designated attachment. Store the uwant B400 in a cool, dry place.
Troubleshooting
- No Power: Ensure the power cord is securely plugged into a working electrical outlet. Check the power switch on the main unit.
- No Water/Steam Dispensing: Verify that the clean water tank is filled and correctly seated. Check for any blockages in the nozzle or hose.
- Low Suction: Ensure the dirty water tank is not full. Check for any blockages in the nozzle, hose, or dirty water tank filter. Make sure all connections are secure.
- Water Leaking: Ensure all tanks and attachments are securely fastened. Check for any cracks or damage to the water tanks.
Specifications
| Feature | Detail |
|---|---|
| Brand | uwant |
| Model Name | B300PRO |
| Item Model Number | B300PRO |
| Product Dimensions | 5 x 5 x 5 inches |
| Color | White |
| Suction Power | 18Kpa |
| Steam Mode Temperature | Up to 212℉ (100℃) |
| Hot Water Mode Temperature | Up to 149℉ (65℃) |
| Water Tank Capacity | 1.2L (2-in-1 Clean/Waste Tank) |
Warranty and Support
The uwant B400 Portable Carpet Cleaner comes with a 1-Year warranty covering the entire product and its accessories. For any inquiries or assistance, uwant provides 24/7 after-sale guarantee support.
Please refer to the official uwant website or your purchase documentation for detailed warranty terms and contact information for customer support.





