1. Overview
The Oasser CW5 is a portable electric pressure washer designed for home, garden, and vehicle cleaning tasks. It features a 1400W motor, a maximum pressure of 125 bar, and a flow rate of 380 litres per hour.
The unit is equipped with a retractable pull rod and wheels for easy transport and storage.
2. Specifications
| Model Number |
CW5 |
| Rated Motor Power |
1400W |
| Maximum Pressure |
125 bar |
| Maximum Flow Rate |
380 L/H |
| Voltage |
220-240V |
| Power Cord Length |
5 m |
| High-Pressure Hose Length |
5 m |
| Product Dimensions (L x W x H) |
33 cm x 43.5 cm x 28 cm |
| Net Weight |
6.1 kg |
| Waterproof Rating |
IPX5 |
3. Components & Accessories
The pressure washer is supplied with the following items:
- Main pressure washer unit with built-in 400 ml detergent tank
- Spray gun with trigger
- 5-metre high-pressure hose
- Set of 5 quick-connect nozzles (0°, 15°, 25°, 40°, and soap applicator)
- 5-metre power cord
- Water inlet hose connector
Nozzle Guide
- 0° (Red): Produces a pinpoint jet for intense cleaning of very stubborn stains. Use with caution as it can damage surfaces.
- 15° (Yellow): A narrow fan pattern for heavy-duty cleaning of concrete, brick, or removing paint.
- 25° (Green): A medium fan pattern for general cleaning of decks, patios, and vehicles.
- 40° (White): A wide fan pattern for gentle cleaning of windows, furniture, or applying detergent.
- Soap (Black): Used to apply detergent or cleaning solution from the built-in tank.
4. Key Features
4.1 Motor and Pump
The 1400W all-copper motor drives the pump to deliver a maximum working pressure of 125 bar. The unit includes a Total Stop System (TSS) which automatically shuts off the pump when the spray gun trigger is released, saving energy and extending pump life.
4.2 Portability
The unit features a retractable pull handle and integrated wheels for easy movement across flat surfaces.
4.3 Detergent System
A built-in 400 ml detergent tank allows for the application of cleaning solutions. Use the black soap nozzle for this function.
4.4 Safety and Protection
The unit has an IPX5 waterproof rating, offering protection against low-pressure water jets from any direction. Always follow the safety instructions in the Operation section.
5. Operation Guide
5.1 Initial Setup and First Use
Important: Before first use, you must purge air from the system.
- Connect the water inlet hose to the machine and to a tap with a standard garden hose thread. Turn on the water tap fully.
- Connect the high-pressure hose to the pump outlet and to the spray gun.
- Plug the power cord into a grounded 220-240V outlet.
- Turn on the power switch on the machine.
- Unlock the spray gun safety catch.
- Purge Air: Point the spray gun (without a nozzle attached) into a safe drainage area. Press and hold the trigger for 15-30 seconds until a steady stream of water flows without sputtering. This removes air from the hose and gun.
- Turn off the machine, attach the desired nozzle to the spray gun, and you are ready to begin cleaning.
5.2 Normal Cleaning Procedure
- Ensure the water supply is connected and turned on.
- Turn on the machine's power switch.
- Unlock the spray gun safety catch.
- Squeeze the trigger to start the water flow. Release the trigger to stop. The pump will automatically stop when the trigger is released.
- To use detergent, fill the built-in tank, select the black soap nozzle, and operate as normal. Rinse the surface afterwards using a clean water nozzle (e.g., 25° or 40°).
5.3 Shutdown and Pressure Relief Procedure
Critical: You must relieve system pressure after every use to prevent damage, especially in freezing conditions.
- Turn off the water tap.
- Disconnect the water inlet hose from the tap (optional).
- Turn off the power switch on the machine.
- Point the spray gun in a safe direction, unlock the safety catch, and squeeze the trigger to release all remaining pressure and water from the hose and pump.
- Once water stops flowing, release the trigger.
- Unplug the power cord from the electrical outlet.
- Store the unit and accessories in a dry, frost-free location.
Note: If the machine is started and no water comes out within 2 minutes, turn off the power immediately to avoid motor damage. Check the water supply and repeat the air purge steps.
6. Maintenance & Storage
- After each use, run the pressure relief procedure as described in section 5.3.
- Never allow the pump to run dry. Always ensure water is flowing before and during operation.
- In cold climates, drain all water from the pump, hose, and gun after use and store indoors to prevent freezing and cracking.
- Periodically check the high-pressure hose for leaks, cracks, or wear. Do not use a damaged hose.
- Clean the filter on the water inlet connection if water flow becomes restricted.
- Store the unit in a clean, dry place. Retract the pull handle and wrap the power cord and hose neatly.
7. Safety Information
- Read all instructions before using the pressure washer.
- This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
- Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
- The high-pressure water stream can cause serious injury. Never point the spray gun at people, animals, electrical outlets, or the machine itself.
- Do not use the pressure washer on electrical systems, vehicles with the engine running, or near live electrical wires.
- Always wear safety glasses and sturdy footwear during operation.
- Use only the nozzles supplied with the machine. The high-pressure jet can damage surfaces—test in an inconspicuous area first.
- Ensure the unit is connected to a properly grounded outlet (220-240V). Do not use extension cords.
- Do not carry the machine by the power cord or high-pressure hose.
- Disconnect the power plug before performing any maintenance or when not in use.