Introduction
Welcome to the instruction manual for your WAn2SHI0SY22 W0004 1600W High-Pressure Airless Paint Sprayer. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new paint sprayer. Please read this manual thoroughly before initial use to ensure proper setup and to maximize the performance and lifespan of your equipment.
Important Safety Instructions
Failure to follow these safety instructions may result in electric shock, fire, and/or serious injury.
General Safety Warnings
- Always wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and a respirator, when operating the sprayer.
- Ensure adequate ventilation in the work area to prevent the accumulation of hazardous fumes.
- Keep children and pets away from the work area.
- Never point the spray gun at yourself or others. The high pressure can cause serious injury.
- Disconnect the power supply before cleaning, servicing, or performing any maintenance on the unit.
- Do not operate the sprayer if any part is damaged or missing.
- Use only manufacturer-approved replacement parts.
Electrical Safety
- Ensure the power supply matches the voltage specified on the sprayer (110V, 60Hz).
- Do not use the sprayer in wet conditions or expose it to rain.
- Always use a grounded outlet.
- Do not abuse the power cord. Keep it away from heat, oil, sharp edges, or moving parts.
Paint and Solvent Safety
- Always follow the paint and solvent manufacturer's safety guidelines and instructions.
- Do not spray flammable materials near open flames, pilot lights, or other ignition sources.
- Ensure proper disposal of paint and cleaning solvents according to local regulations.
Product Overview and Components
The WAn2SHI0SY22 W0004 is a 1600W high-pressure airless paint sprayer designed for efficient application of water-based latex paints and emulsions for indoor and outdoor projects. It features an all-copper brush motor, adjustable pressure, and a 2.5L hopper.
Main Components

This image displays the WAn2SHI0SY22 W0004 airless paint sprayer with its key components clearly labeled. These include the spray gun, high-pressure hose, pressure watch (gauge), pressure regulating valve, switch, hopper, handle, and carbon brush access. Dimensions of 36cm length, 16cm width, and 33.5cm height are also indicated.
Included Accessories
- 1x High-pressure Airless Sprayer Unit
- 1x Sprayer Gun
- 1x English Manual
- 1x 16.4ft (5m) High-Pressure Hose
- Other Assembly Accessories (e.g., wrenches, screwdriver)
- 1x Pump

This image shows all components included with the WAn2SHI0SY22 W0004 airless paint sprayer, neatly arranged. It features the main sprayer unit with its hopper, the spray gun, the blue high-pressure hose, and various tools such as wrenches and a screwdriver, ready for assembly and use.
Setup Guide
Unpacking
Carefully remove all components from the packaging. Inspect for any damage. Retain packaging for future storage or transport.
Assembly
- Attach the high-pressure hose to the outlet port on the main sprayer unit and to the inlet of the spray gun. Ensure all connections are tight to prevent leaks.
- Securely attach the hopper to the top of the main unit.
- Connect the power cord to the sprayer unit.
Initial Priming
- Fill the hopper with a small amount of water or appropriate cleaning solution (for water-based paints).
- Place the spray gun into a waste bucket.
- Turn the pressure regulating valve to the lowest setting.
- Turn on the sprayer. Allow the water/solution to circulate through the system until it sprays smoothly from the gun, indicating air has been purged.
- Turn off the sprayer and dispose of the priming liquid.
Operating Instructions
Preparing the Paint
Ensure your paint is properly mixed and thinned according to the paint manufacturer's recommendations for airless sprayers. Strain the paint to remove any lumps or debris that could clog the sprayer.
Pour the prepared paint into the hopper. Do not overfill.
Adjusting Pressure and Flow
The sprayer features an adjustable pressure knob to control the flow rate and atomization.

This image provides a detailed view of the pressure adjustment knob, labeled "Small" and "Big," with color-coded indicators (red, blue, green) to help users select the desired pressure and flow rate for their painting task.
Start with a lower pressure setting and gradually increase it until you achieve a consistent, even spray pattern without excessive overspray or spitting. Test on a scrap piece of material.
Spraying Technique
Maintain a consistent distance (typically 10-12 inches) from the surface.
Move the spray gun in smooth, even strokes, overlapping each pass by about 50%.
Release the trigger at the end of each pass to avoid paint buildup.
Stopping Operation
When finished spraying, turn off the power switch.
Engage the trigger lock on the spray gun for safety.
Relieve any remaining pressure in the system by pointing the gun into a waste bucket and briefly disengaging the trigger lock.
Maintenance and Cleaning
Cleaning After Use
Proper cleaning is crucial for the longevity and performance of your sprayer.
- Disconnect the power.
- Remove any remaining paint from the hopper.
- Pour appropriate cleaning solution (water for latex, mineral spirits for oil-based) into the hopper.
- Spray the cleaning solution through the gun into a waste bucket until the spray runs clear.
- Disassemble the spray gun tip and guard. Clean them thoroughly with a brush and cleaning solution.
- Clean the hopper and exterior of the unit.
- Reassemble the components.
Storage
Store the cleaned and dried sprayer in a cool, dry place, away from direct sunlight and freezing temperatures.
For long-term storage, consider using a pump protector fluid to prevent corrosion.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No spray or weak spray | Clogged tip | Clean or replace spray tip. |
| No spray or weak spray | Air in system | Re-prime the sprayer. |
| No spray or weak spray | Insufficient paint in hopper | Refill hopper. |
| Motor runs but no pressure | Inlet valve clogged | Clean inlet valve. |
| Uneven spray pattern | Incorrect pressure setting | Adjust pressure knob. |
| Uneven spray pattern | Worn spray tip | Replace spray tip. |
| Leaking from connections | Loose fittings | Tighten all hose and gun connections. |
Important Note: Switch Loosening
Due to transportation, the power switch may become loose. If this occurs, please refer to the product page for a video guide on how to address this issue. Ensure the switch is securely seated before operation.
Technical Specifications
| Feature | Specification |
|---|---|
| Brand | WAn2SHI0SY22 |
| Model Name | W-0004 |
| Motor Type | All-copper, Brush Motor |
| Motor Power | 1600W |
| Voltage | 110V, 60Hz |
| Max. Spraying Flowrate | 2.5 L/min (84.54 Oz/min) |
| Max. Output Pressure | 120 MPa |
| Hopper Capacity | 2.5 L (0.66 Gal) |
| Hose Length | 5 m (16.4 ft) |
| Power Cord Length | 1.8 m (5.91 ft) |
| Motor Speed | 0-850 rpm |
| Product Dimensions | 36 x 16 x 33.5 cm (14.2 x 6.3 x 13.2 in) |
| Net Weight | 7.5 kg (16.53 lbs) |
| Color | Silver |
| Assembly Required | Yes |
| Mount Type | Free Standing |
Warranty and Customer Support
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions.
For technical assistance, replacement parts, or warranty claims, please contact WAn2SHI0SY22 customer support through your retailer or the official brand website.