1. Introduction
This manual provides essential information for the safe and efficient operation, assembly, maintenance, and troubleshooting of your Earthwise 1800 PSI Electric Pressure Washer. Please read all instructions carefully before use and retain this manual for future reference.
2. Safety Information
WARNING: Always wear appropriate personal protective equipment, including eye protection, when operating the pressure washer. High-pressure spray can cause serious injury.
- Ensure the power cord and plug are in good condition. Do not use if damaged.
- Connect to a grounded outlet only.
- Do not direct the spray at people, pets, or electrical devices.
- Keep children and bystanders away from the operating area.
- Always disconnect the power supply before performing any maintenance or cleaning.
- Do not operate the unit without water supply.
3. Package Contents
Verify that all items are present before assembly:
- Earthwise 1800 PSI Electric Pressure Washer Unit
- Spray Gun
- Spray Wand
- High-Pressure Hose (25 ft)
- Quick-Connect Spray Tips (4 individual tips)
- Detergent Tank (64 oz built-in)
- Power Cord (35 ft)
- User Manual
Figure 1: Included accessories: spray gun, wand, high-pressure hose, and quick-connect nozzles.
4. Assembly
- Attach the High-Pressure Hose: Connect one end of the 25-foot high-pressure hose to the pressure washer's high-pressure outlet and the other end to the spray gun. Ensure connections are secure to prevent leaks.
- Connect the Spray Wand: Insert the spray wand into the spray gun and twist until it locks into place.
- Install a Spray Tip: Select the desired quick-connect spray tip and push it firmly into the end of the spray wand until it clicks into place. Refer to the nozzle selection guide for appropriate tip usage.
- Connect Water Supply: Attach a standard garden hose (not included) to the water inlet connection on the pressure washer. Ensure the water inlet filter is clean and properly seated. Turn on the water supply fully.
Figure 2: Water inlet connection with integrated filter. Ensure a tight seal.
5. Operating Instructions
5.1 Priming the Pump
Before starting the unit, squeeze the trigger on the spray gun to release air from the system. Allow water to flow through the gun for approximately 30 seconds until a steady stream is achieved. This primes the pump and prevents damage.
5.2 Starting the Pressure Washer
- Ensure the unit is connected to a grounded power outlet.
- Turn on the main power switch on the pressure washer.
- Squeeze the trigger on the spray gun to begin spraying. The motor will start automatically.
5.3 Nozzle Selection
The pressure washer includes four quick-connect spray tips for various applications. Each tip provides a different spray pattern and pressure level:
- 0° (Red): Pin-point jet for intense cleaning of small, stubborn spots. Use with extreme caution.
- 25° (Green): Fan spray for general cleaning of most surfaces.
- 40° (White): Wide fan spray for gentle cleaning of delicate surfaces.
- Soap (Black): Low-pressure spray for applying detergent.
Figure 3: Nozzle selection guide. Choose the appropriate nozzle for your cleaning task.
Figure 4: Onboard storage for quick-connect spray tips, ensuring easy access and organization.
5.4 Using Detergent
The pressure washer features a large 64oz built-in detergent tank.
- Open the detergent tank cap and fill with a pressure washer safe detergent.
- Insert the black (soap) quick-connect nozzle into the spray wand.
- Squeeze the trigger to apply detergent at low pressure.
- After applying detergent, switch to a high-pressure nozzle (e.g., 25° or 0°) to rinse the surface.
Figure 5: Detergent tank with cap for soap application. Fill with appropriate pressure washer detergent.
5.5 Cleaning Techniques
Always test the spray on an inconspicuous area first to avoid damage. Maintain a safe distance from the surface being cleaned, typically 6-12 inches, adjusting as needed.
Figure 6: Example of cleaning house siding. Start from the top and work downwards.
Figure 7: Cleaning concrete surfaces. Use a consistent sweeping motion for even cleaning.
6. Maintenance
6.1 After Each Use
- Turn off the water supply and disconnect the garden hose.
- Squeeze the spray gun trigger to release any remaining pressure in the system.
- Turn off the power switch and unplug the unit.
- Drain any remaining water from the detergent tank.
- Wipe down the unit with a damp cloth.
6.2 Storage
Store the pressure washer in a dry, frost-free area. Do not store in temperatures below 32°F (0°C) without proper winterization, as freezing water can damage the pump.
6.3 Winterization
If storing the unit in an area where temperatures may drop below freezing:
- Disconnect all water hoses.
- Pour pressure washer pump protector (available separately) into the water inlet.
- Briefly turn on the unit (for 1-2 seconds) until the protector solution exits the high-pressure outlet.
- Store the unit as described above.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not start | No power; GFCI tripped; Power switch off | Check power connection; Reset GFCI; Turn power switch on |
| Low pressure | Insufficient water supply; Clogged nozzle; Air in pump | Ensure full water flow; Clean nozzle; Prime pump (Section 5.1) |
| Water leaks | Loose connections; Damaged O-rings | Tighten all connections; Replace damaged O-rings |
| Detergent not siphoning | Wrong nozzle selected; Detergent tank empty | Use black (soap) nozzle; Refill detergent tank |
8. Specifications
- Model: PW18004FS-P
- Brand: Earthwise
- Power Source: Corded Electric
- Motor: 13 Amp
- Maximum Pressure: 1800 PSI
- Water Flow Rate: 1.2 Gallons Per Minute (GPM)
- High-Pressure Hose Length: 25 Feet
- Power Cord Length: 35 Feet
- Detergent Tank Capacity: 64 oz (1.2 Gallons)
9. Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official Earthwise website. Keep your purchase receipt as proof of purchase.
