1. Introduction
The DEWALT DXV20P is a professional-grade 20-liter wet/dry vacuum cleaner designed for versatile cleaning tasks. It features a robust 1050W motor, durable plastic housing, and heavy-duty casters for portability. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your DEWALT DXV20P wet/dry vacuum.

Figure 1: DEWALT DXV20P Wet/Dry Vacuum Cleaner
This image shows the DEWALT DXV20P wet/dry vacuum cleaner from a front-side angle, highlighting its yellow and black design, the attached hose, and the four swivel casters for mobility.
2. Safety Instructions
Always observe basic safety precautions when using this appliance to reduce the risk of fire, electric shock, or injury. Read all instructions before operating this vacuum cleaner.
General Safety
- Electrical Safety: Do not expose to rain. Store indoors. Do not allow to be used as a toy. Close attention is necessary when used by or near children.
- Power Source: Use only as described in this manual. Use only manufacturer’s recommended attachments.
- Avoid Hazards: 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.
- Flammable Materials: Do not vacuum flammable or combustible liquids, such as gasoline, or use in areas where they may be present.
- Hot Materials: Do not vacuum anything that is burning or smoking, such as cigarettes, matches, or hot ashes.
- Personal Safety: Keep hair, loose clothing, fingers, and all parts of body away from openings and moving parts.
Operation Specific Safety
- Filter Usage: Always use the appropriate filter for the task (cartridge filter for dry, foam filter for wet).
- Unplugging: Unplug from outlet when not in use and before servicing.
- Maintenance: Do not attempt to service the vacuum cleaner yourself. Refer all servicing to qualified service personnel.
3. Package Contents
Carefully unpack your DEWALT DXV20P wet/dry vacuum and ensure all items are present. If any parts are missing or damaged, contact your retailer or DEWALT customer service.

Figure 2: What's Included
This image displays all components included with the DEWALT DXV20P wet/dry vacuum cleaner, laid out neatly. These include the main vacuum unit, extension wands, various nozzles (utility, crevice, floor), the vacuum hose, a washable cartridge filter, a disposable filter bag, an accessory bag, and the instruction manual.
Included Components:
- DEWALT DXV20P Wet/Dry Vacuum Unit
- Extension Wand (x2)
- Utility Nozzle
- Crevice Nozzle
- Floor Nozzle
- Vacuum Hose (2.1m)
- Washable Cartridge Filter
- Disposable Filter Bag
- Accessory Bag
- Instruction Manual
4. Setup
Follow these steps to prepare your DEWALT DXV20P for first use.
4.1 Attaching Casters
- Invert the vacuum tank.
- Insert each caster stem into the designated holes on the bottom of the tank.
- Push firmly until each caster clicks securely into place.
4.2 Filter Installation
The DXV20P uses a washable cartridge filter for dry vacuuming. For wet vacuuming, the cartridge filter should be removed. A foam filter (not included, but typically used for wet applications) would be installed for wet use if available.
- Remove the power head from the tank by releasing the side latches.
- For dry vacuuming, ensure the washable cartridge filter is securely installed over the filter cage. Twist to lock if applicable.
- For wet vacuuming, remove the cartridge filter. If using a foam filter (sold separately), install it over the filter cage.
- Replace the power head onto the tank and secure the side latches.
4.3 Connecting the Hose and Accessories
- Insert the large end of the vacuum hose into the intake port on the front of the vacuum power head. Twist to secure.
- Attach the desired accessory (extension wand, utility nozzle, crevice nozzle, or floor nozzle) to the free end of the hose.
5. Operating Instructions
The DEWALT DXV20P offers three primary functions: dry vacuuming, wet vacuuming, and blowing.

Figure 3: 3-in-1 Functionality
This image illustrates the three main functions of the DEWALT DXV20P: dry vacuuming (person cleaning sawdust), wet vacuuming (person cleaning spilled liquid), and blowing (person clearing leaves).
5.1 Dry Vacuuming
- Ensure the washable cartridge filter is correctly installed.
- Connect the hose to the intake port and attach the desired dry vacuuming accessory.
- Plug the power cord into a suitable 230V outlet.
- Turn the power switch to the 'ON' position.
- Begin vacuuming dry debris.
- When finished, turn the power switch to 'OFF' and unplug the unit.
5.2 Wet Vacuuming
- Important: Remove the cartridge filter before wet vacuuming. If using a foam filter (sold separately), install it now.
- Connect the hose to the intake port and attach a suitable wet vacuuming accessory.
- Plug the power cord into a suitable 230V outlet.
- Turn the power switch to the 'ON' position.
- Begin vacuuming liquids. The vacuum has an automatic ball-tap shut-off that will stop suction when the tank is full.
- When the tank is full or you are finished, turn the power switch to 'OFF' and unplug the unit.
- Empty the tank immediately after wet vacuuming.
5.3 Blower Function
- Locate the blower port on the power head (typically opposite the intake port).
- Insert the vacuum hose into the blower port.
- Plug the power cord into a suitable 230V outlet.
- Turn the power switch to the 'ON' position.
- Use the hose to direct airflow for blowing debris.
- When finished, turn the power switch to 'OFF' and unplug the unit.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your DEWALT DXV20P vacuum cleaner.

Figure 4: Key Features and Components
This diagram provides an exploded view of the DEWALT DXV20P, pointing out its main features such as the large waterproof switch, powerful 1050W motor, reliable safety protection, washable cartridge filter, and 360-degree rubberized casters.
6.1 Filter Cleaning and Replacement
The DXV20P features a washable cartridge filter. Clean or replace the filter regularly to maintain suction power.
- Always unplug the vacuum cleaner before performing any maintenance.
- Release the side latches and remove the power head.
- Carefully remove the cartridge filter from the filter cage.
- Clean the filter by gently tapping it to dislodge loose dirt, or wash it with water. Allow the filter to air dry completely before reinstallation.
- Inspect the filter for any tears or damage. Replace if necessary.
- Reinstall the clean, dry filter onto the filter cage and replace the power head.
6.2 Tank Cleaning
- Empty the tank after each use, especially after wet vacuuming.
- Rinse the inside of the tank with water to remove any residue.
- Wipe the tank dry or allow it to air dry before storage.
6.3 Hose and Accessory Cleaning
- Check the hose and accessories for blockages regularly. Clear any obstructions to maintain airflow.
- Wipe down the exterior of the vacuum and accessories with a damp cloth. Do not use harsh chemicals.
7. Troubleshooting
If you encounter issues with your DEWALT DXV20P, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Vacuum does not turn on | No power to outlet Power cord not plugged in Faulty power switch | Check circuit breaker/fuse Ensure cord is securely plugged in Contact DEWALT service center |
| Loss of suction | Hose or accessory blocked Filter clogged Tank full (wet vacuuming) Power head not sealed properly | Clear blockages Clean or replace filter Empty tank Ensure side latches are secured |
| Motor overheating | Blocked airflow Extended heavy use | Check for and clear blockages in hose/filter Allow vacuum to cool down before resuming use |
| Water leaking from tank | Tank overfilled Drain cap loose Damaged tank/seal | Empty tank Tighten drain cap Contact DEWALT service center |
8. Specifications
The following table details the technical specifications for the DEWALT DXV20P Wet/Dry Vacuum Cleaner.

Figure 5: Product Dimensions
This image provides a visual representation of the DEWALT DXV20P's dimensions, showing its height (50cm), width (38.2cm), and depth (36.7cm) from both front and back perspectives.
| Feature | Specification |
|---|---|
| Brand | DEWALT |
| Model Number | DXV20P |
| Power | 1050 Watts |
| Voltage | 230 Volts |
| Capacity | 20 Liters |
| Airflow (EU L/S) | 37.8 L/S |
| Sealed Pressure (Kpa) | 15 Kpa |
| Noise Level | 80 Decibels |
| Cord Length | 3 meters |
| Hose Length | 2.1 meters |
| Hose Diameter | 48 mm |
| Product Dimensions (L x W x H) | 14.96 x 13.78 x 19.69 cm (approx. 38.2 x 35 x 50 cm) |
| Item Weight | 1 Kilogram |
| Special Features | Corded, Lightweight, Portable |
| Filter Type | Cartridge (Washable) |
9. Warranty and Support
DEWALT products are manufactured to high-quality standards and are rigorously tested. For information regarding warranty coverage, please refer to the warranty card included with your product or visit the official DEWALT website for your region.
For technical assistance, spare parts, or service inquiries, please contact DEWALT customer support. Keep your purchase receipt and product model number (DXV20P) handy when contacting support.
Online Support: Visit www.dewalt.com for product information, FAQs, and service center locations.