Introduction
The AR Blue Clean 399 is a semi-professional induction motor high-pressure washer designed for effective cleaning of stubborn dirt on various outdoor domestic surfaces, including driveways, balconies, terraces, gates, garden furniture and tools, walls, pool edges, as well as cars, motorcycles, and bicycles.
This manual provides essential information for the safe and efficient operation, setup, maintenance, and troubleshooting of your AR Blue Clean 399 pressure washer. Please read it thoroughly before first use and keep it for future reference.
Product Components

Image Description: A comprehensive view of the AR Blue Clean 399 pressure washer, showcasing its main unit in blue and black, along with various included accessories. These accessories include the high-pressure gun, lance, rotary nozzle, adjustable nozzle, foam nozzle, and a Patio Cleaner attachment. The main unit features large wheels for portability and an integrated hose reel.

Image Description: A side profile view of the AR Blue Clean 399 pressure washer, highlighting its vertical design, large rear wheels, and ergonomic handle for easy transport. The integrated hose reel is visible at the top, along with the detergent tank on the side.
The AR Blue Clean 399 comes equipped with a robust set of components and accessories to ensure versatile cleaning performance:
- Main Unit: Features a powerful 2 kW induction motor, known for its durability, reliability, and quiet operation. Includes a Total Stop System (TSS) for automatic shutdown when the trigger is released.
- High-Pressure Gun with Safety Lock: For controlled and safe operation.
- High-Pressure Hose (8 m): Provides ample reach for various cleaning tasks.
- High-Pressure Lance: Connects to the gun for extended reach and precise application.
- Adjustable Jet Nozzle: Allows switching between a cylindrical jet for powerful cleaning and a fan jet for more delicate surfaces.
- Rotary Jet Nozzle: Designed for removing stubborn dirt like moss and encrustations.
- Foam Nozzle: For applying detergent, connecting to the lance.
- Integrated Detergent Tank (1.4 l): For convenient detergent application.
- Patio Cleaner: An accessory specifically designed for deep cleaning of stone, wood, or concrete floors.
- Static Hose Reel: For quick and tidy storage of the high-pressure hose.
- Integrated Accessory Holder: Keeps all accessories organized and readily accessible.
- Inspectable Water Inlet Filter: Traps impurities to ensure optimal performance and longevity of the pressure washer.
Setup and Assembly
Before using your pressure washer, ensure all components are correctly assembled and connected.
- Unpacking: Carefully remove all components from the packaging. Check for any damage.
- Handle Assembly: Attach the ergonomic handle to the main unit if it's not already pre-assembled. Ensure it clicks securely into place.
- Hose Reel (if applicable): The static hose reel is integrated. Ensure the high-pressure hose is properly wound onto it.

Image Description: A close-up view of the integrated static hose reel on the AR Blue Clean 399 pressure washer. The high-pressure hose is neatly wound around the reel, with markings indicating maximum pressure and temperature.
- Detergent Tank: The 1.4-liter detergent tank is integrated. To fill, unscrew the cap and pour in the desired pressure washer detergent.

Image Description: A rear view of the AR Blue Clean 399 pressure washer, clearly showing the integrated detergent tank in the center. The hose reel is positioned above it, and the large wheels are visible at the bottom, emphasizing the unit's portability.
- Water Supply Connection: Connect a garden hose to the water inlet on the pressure washer. Ensure the inspectable filter is clean and properly seated. The water supply must be clean and free of impurities.
- High-Pressure Hose Connection: Connect one end of the high-pressure hose to the pressure washer's outlet and the other end to the high-pressure gun. Ensure connections are secure.
- Lance and Nozzle Attachment: Attach the desired lance and nozzle (e.g., adjustable jet, rotary jet, or foam nozzle) to the high-pressure gun. Twist or click into place until secure.
- Power Connection: Plug the 5-meter electrical cable into a suitable power outlet (230 Volt).
Important Safety Note:
- Always ensure the water supply is turned on before starting the pressure washer to prevent damage to the pump.
- Never point the high-pressure jet at people, animals, or electrical equipment.
- Wear appropriate personal protective equipment (PPE), including eye protection and sturdy footwear.
Operating Instructions
Follow these steps for effective and safe operation of your AR Blue Clean 399 pressure washer.
- Preparation:
- Ensure the pressure washer is on a stable, level surface.
- Connect the water supply and turn on the tap fully.
- Squeeze the trigger on the gun to purge air from the system until a steady stream of water emerges.
- Plug in the power cord.
- Starting the Unit:
- Turn the ON/OFF switch to the "ON" position. The motor will start.
- The Total Stop System (TSS) will automatically shut off the motor when the trigger is released and restart it when the trigger is pressed again.
- Using Different Nozzles:
- Adjustable Jet Nozzle: Rotate the nozzle head to switch between a concentrated cylindrical jet for tough spots and a wider fan jet for general cleaning or rinsing.
- Rotary Jet Nozzle: Provides a powerful, rotating stream for removing very stubborn dirt, moss, and grime. Use with caution on delicate surfaces.
- Foam Nozzle with Detergent Tank:
- Fill the integrated detergent tank with appropriate pressure washer detergent.
- Attach the foam nozzle to the lance.
- The pressure washer will draw detergent from the tank and mix it with water to create foam.
- Apply foam to the surface, allow it to dwell as per detergent instructions, then rinse with a high-pressure jet.
- Patio Cleaner:

Image Description: A person is shown operating the AR Blue Clean Patio Cleaner attachment on a paved surface. The blue circular cleaner is effectively removing dirt and grime, demonstrating its use for deep cleaning of large flat areas.
Attach the Patio Cleaner to the high-pressure gun. This accessory is ideal for cleaning large flat surfaces like patios, driveways, and decks, providing a consistent and splash-free cleaning experience.
- Cleaning Techniques:

Image Description: A high-pressure jet from the AR Blue Clean 399 is shown cleaning a wooden deck. The image illustrates the effective removal of dirt and discoloration, with a clear line separating the cleaned and uncleaned sections of the wooden planks.

Image Description: A woman is using the AR Blue Clean 399 pressure washer to clean a yellow fabric lounge chair next to a swimming pool. The image demonstrates the versatility of the pressure washer for cleaning outdoor furniture.
- Always start cleaning from a distance and move closer to the surface as needed, especially on delicate materials.
- Use sweeping motions to ensure even cleaning.
- For vertical surfaces, clean from bottom to top to prevent streaking.
- Shutting Down:
- Turn the ON/OFF switch to the "OFF" position.
- Turn off the water supply.
- Squeeze the trigger on the gun to release any remaining pressure in the system.
- Unplug the power cord.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your pressure washer.
- After Each Use:
- Drain all water from the pump and hoses, especially before storing in freezing temperatures.
- Clean the exterior of the unit with a damp cloth.
- Wind the high-pressure hose neatly onto the static hose reel.
- Store all accessories in the integrated accessory holder.
- Water Inlet Filter: Regularly inspect and clean the water inlet filter to prevent impurities from entering the pump. A clogged filter can reduce performance and damage the unit.
- Nozzle Cleaning: If the spray pattern becomes irregular or pressure drops, the nozzle may be clogged. Use the provided nozzle cleaning tool (if included) or a thin wire to clear any obstructions.
- Detergent Tank: Rinse the detergent tank thoroughly after each use with detergent to prevent residue buildup.
- Storage: Store the pressure washer in a dry, frost-free location.
Troubleshooting
This section addresses common issues you might encounter with your pressure washer.
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not start. | No power supply; ON/OFF switch is off; Thermal overload activated. | Check power connection and circuit breaker; Turn ON/OFF switch to "ON"; Allow motor to cool down for 5-10 minutes. |
| No water or low pressure. | Water supply off; Kinked hose; Clogged water inlet filter; Clogged nozzle; Air in pump. | Turn on water supply; Straighten hose; Clean water inlet filter; Clean nozzle; Squeeze trigger with motor off until steady water flow. |
| Motor runs continuously when trigger is released. | Air in pump; Leak in system; Bypass valve issue. | Purge air from pump; Check all connections for leaks; Contact service center if issue persists. |
| Detergent not dispensing. | Detergent tank empty; Foam nozzle not attached correctly; Detergent too thick. | Fill detergent tank; Ensure foam nozzle is securely attached; Dilute detergent as per instructions. |
If you encounter issues not listed here or if solutions do not resolve the problem, please contact an authorized service center.
Specifications
| Feature | Detail |
|---|---|
| Model Number | AR Blue Clean 399 |
| Power (kW) | 2.0 kW |
| Maximum Pressure | 140 bar (2030 PSI) |
| Maximum Flow Rate | 450 l/h (118.9 GPH) |
| Motor Type | Induction Motor |
| Power Supply | 230 Volt (Wired) |
| Max. Inlet Water Temperature | 50 °C (122 °F) |
| Detergent Tank Volume | 1.4 Liters |
| High-Pressure Hose Length | 8 meters |
| Electrical Cable Length | 5 meters |
| Dimensions (L x W x H) | 40 x 35 x 85.5 cm |
| Weight | 23 kg |
| Certifications | CE, CSA |
Warranty and Support
Your AR Blue Clean 399 pressure washer comes with a two-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures reliable operation under normal use conditions.
For warranty claims, technical assistance, or to locate an authorized service center, please refer to the instruction manual included in the product packaging or visit the official AR Blue Clean website. Keeping your proof of purchase is essential for any warranty service.





