1. Introduction
Thank you for choosing the DEKOPRO Electric Pressure Washer. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your pressure washer. This unit is designed to deliver up to 2150 PSI with a maximum 1.8 GPM water flow, making it suitable for various outdoor cleaning tasks such as removing tar, grease, oil stains, rust, and cleaning vehicles or exterior surfaces.
2. Important Safety Instructions
Always follow basic safety precautions when using this product to reduce the risk of injury or damage. Read all instructions before operating the appliance.
- Electrical Safety: The pressure washer is equipped with an IPX5 waterproof rating and a GFCI (Ground Fault Circuit Interrupter) plug to prevent electric leakage. Always ensure the GFCI is functioning correctly before each use. Do not operate if the GFCI trips repeatedly.
- Total Stop System (TSS): This system automatically shuts off the pump when the trigger is not engaged, prolonging pump life and ensuring safety.
- Safety Lock: The pressure washer gun features a safety lock. Always engage the safety lock when the unit is not in use or when changing nozzles to prevent accidental discharge.
- Water Connection: Ensure all water connections are secure to prevent leaks. Do not use the pressure washer with contaminated water.
- Personal Protective Equipment: Always wear appropriate eye protection, such as safety goggles, and protective clothing when operating the pressure washer.
- Operating Environment: Do not operate the pressure washer in an explosive atmosphere, such as in the presence of flammable liquids, gases, or dust.
3. Package Contents
Verify that all items are present in the package before assembly and operation. If any parts are missing or damaged, contact customer support.
- DEKOPRO Electric Pressure Washer Unit
- High-Pressure Hose (26 ft)
- Spray Gun with Safety Lock
- 4 Quick-Connect Nozzles (0°, 15°, 25°, 40°)
- Soap Tank (16.9 oz)
- Water Inlet Connector
- Nozzle Cleaning Pin
- User Manual
4. Setup
4.1 Assembly
Unpack all components and place them on a flat, stable surface. Follow the instructions below to assemble the pressure washer.
- Attach the wheels to the main unit by aligning them with the axle and securing them.
- Insert the handle into the designated slots on the top of the unit until it clicks into place.
- Connect the high-pressure hose to the outlet on the pressure washer unit and to the spray gun. Ensure connections are hand-tightened securely.
- Attach the desired quick-connect nozzle to the spray gun by pulling back the collar, inserting the nozzle, and releasing the collar to lock it in place.

Figure 1: The DEKOPRO Electric Pressure Washer unit with its main components assembled, including the hose reel and spray gun.
4.2 Water Connection
The pressure washer can draw water from a standard garden hose or utilize its self-priming function from alternative water sources.
- Standard Connection: Connect a garden hose (not included) to the water inlet on the pressure washer. Ensure the water supply is turned on fully before starting the unit.
- Self-Priming: For drawing water from a bucket, pool, or other static water source, ensure the water inlet hose is fully submerged. The unit will self-prime when started.

Figure 2: Illustration of the pressure washer's self-priming capabilities, showing water being drawn from a pool, a faucet, and a bucket.
4.3 Power Connection
Connect the pressure washer's power cord to a grounded electrical outlet. Ensure the outlet meets the power requirements specified in the specifications section. Always use the GFCI plug provided.
5. Operating Instructions
5.1 Starting the Pressure Washer
- Ensure all connections (water and power) are secure.
- Turn on the water supply completely.
- Squeeze the trigger on the spray gun to purge air from the system until a steady stream of water emerges.
- Plug the GFCI into a grounded outlet and press the 'RESET' button on the GFCI plug.
- Turn the ON/OFF switch on the pressure washer to the 'ON' position. The motor will start when the trigger is squeezed and stop when released (TSS).
5.2 Using Spray Nozzles
The pressure washer includes four quick-connect nozzles, each designed for specific cleaning tasks. Select the appropriate nozzle for your application.

Figure 3: The four quick-connect nozzles (0°, 15°, 25°, 40°) and their corresponding spray patterns.
- 0° (Red) Nozzle: Provides a concentrated, high-pressure stream for tough spots and stubborn stains. Use with caution as it can damage surfaces.
- 15° (Yellow) Nozzle: Offers a powerful, narrow spray for intense cleaning of small areas, such as removing paint or rust.
- 25° (Green) Nozzle: Delivers a medium-width spray for general cleaning of most surfaces, including decks, patios, and driveways.
- 40° (White) Nozzle: Produces a wide, gentle spray for light cleaning, rinsing, and delicate surfaces like vehicles or windows.
5.3 Applying Detergent
The integrated 16.9 oz soap tank allows for easy application of cleaning detergents.
- Fill the soap tank with an appropriate pressure washer detergent.
- Attach the black soap nozzle (often a wider angle, low-pressure nozzle) to the spray gun.
- The pressure washer will automatically mix the detergent with water at a low pressure for effective cleaning.

Figure 4: Examples of the pressure washer being used for various cleaning tasks, including siding, pavement, vehicle washing, and roof cleaning.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your pressure washer.
6.1 After Each Use
- Turn off the pressure washer and disconnect the power.
- Turn off the water supply.
- Squeeze the spray gun trigger to release any remaining pressure in the system.
- Disconnect the garden hose and high-pressure hose.
- Drain any remaining water from the pump and hoses to prevent freezing damage.
- Clean the nozzles with the provided cleaning pin if they become clogged.
6.2 Storage
Store the pressure washer in a dry, frost-free area. Utilize the built-in hose reel and nozzle holder for organized storage.

Figure 5: Close-up view of the integrated nozzle holder, built-in hose reel for the high-pressure hose, and the 35ft wire hook for power cord management.
7. Troubleshooting
Refer to the table below for common issues and their solutions. If the problem persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not start | No power supply; GFCI tripped; ON/OFF switch off | Check power connection; Reset GFCI; Turn ON/OFF switch to 'ON' |
| No pressure or low pressure | Water supply off or restricted; Air in pump; Clogged nozzle; Incorrect nozzle selected | Turn on water supply; Purge air from system; Clean nozzle; Select appropriate nozzle |
| Motor runs but no water flow | Water supply off; Inlet filter clogged; Hose kinked | Turn on water supply; Clean inlet filter; Straighten hose |
| Unit makes winding sound and stops sending pressure intermittently | Air in pump; Water supply issue; Pump cavitation | Ensure continuous, adequate water supply; Purge air from system; Check for leaks in water inlet. |
8. Specifications
| Specification | Value |
|---|---|
| Brand | DEKOPRO |
| Model Number | DKEHPWB180C1-K1UL-GRAZ |
| Power Source | Corded Electric |
| Maximum Pressure | 2150 PSI |
| Maximum Water Flow | 1.8 GPM |
| Product Dimensions (L x W x H) | 12" x 6" x 18" |
| Color | GREEN |
9. Warranty and Customer Support
This DEKOPRO Electric Pressure Washer comes with a one-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
If you encounter any issues or have questions regarding the operation, maintenance, or warranty of your product, please do not hesitate to contact our service team. We are committed to providing support and addressing any concerns within 24 hours.
For customer support, please refer to the contact information provided on your product packaging or the official DEKOPRO website.