Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your WAP Mini Plus 1650W Pressure Washer Electric Motor. This motor is a critical component of your high-pressure washer's electrical system, designed for efficient performance and durability. Please read this manual thoroughly before installation and use to ensure safe and effective operation.
Technical Specifications
| Product Type: | Electric Motor |
| Compatible Tool: | High-Pressure Washer (Pressure Washer) |
| Brand: | WAP |
| Model: | Mini Plus |
| Power: | 1650W |
| Voltage: | 127V |
| Factory Code: | FW005089 |
| Compatibility: | Compatible with versions II and III manufactured from 2009 onwards. |
| Manufacturer: | FRESNOMAQ INDUSTRIA DE MAQUINAS SA |
| Item Weight: | 2 Kilograms |
| Product Dimensions (LxWxH): | 18 x 16 x 18 cm |
Motor Dimensions
- Total Height: 144.4 mm
- Impeller Cover Diameter: 78.3 mm
- Diameter Between Brushes: 94.1 mm
- Base Fitting: 64 mm
- Distance Between Side Mounting Screws: 72 mm
- Distance Between Side and Rear Screws: 65 mm
- Distance Between Side and Front Screws: 52 mm

Detailed measurements of the motor, including impeller cover diameter (78.3mm) and diameter between brushes (94.1mm), as measured with precision calipers.

Further measurements of the motor's base, illustrating the base fitting (64mm) and various screw distances (72mm, 65mm, 52mm) for proper installation.
Setup and Installation
This electric motor is a replacement part for WAP Mini Plus pressure washers. Installation should be performed by a qualified technician or an individual with experience in electrical and mechanical repairs of pressure washers.
Pre-Installation Checklist:
- Ensure the pressure washer is disconnected from the power supply.
- Gather necessary tools (screwdrivers, wrenches, multimeter, etc.).
- Verify the new motor's specifications (voltage, power, dimensions) match your pressure washer's requirements.
- Inspect the new motor for any visible damage.
Installation Steps (General Guidance):
- Carefully disassemble the pressure washer casing to access the old motor.
- Disconnect all electrical connections and mounting screws from the old motor. Note the wiring configuration.
- Remove the old motor.
- Position the new motor in place, ensuring proper alignment with mounting points and pump assembly.
- Secure the motor with appropriate screws, ensuring they are tightened to specification. Refer to the pressure washer's original manual for torque settings if available.
- Reconnect all electrical wires according to the original configuration. Ensure connections are secure and insulated.
- Before reassembling the casing, perform a preliminary test: Briefly connect the pressure washer to power to confirm the motor spins freely and quietly. Disconnect immediately after this brief test.
- Reassemble the pressure washer casing, ensuring all components are correctly seated and secured.

The WAP Mini Plus 1650W Electric Motor, ready for installation into a compatible pressure washer unit.

An example of a WAP Mini Plus pressure washer, the type of equipment this motor is designed for.
Operating Instructions
Once the electric motor is correctly installed within your WAP Mini Plus pressure washer, its operation is integrated with the pressure washer's overall system. The motor powers the pump to generate high-pressure water flow.
General Operation (as part of the pressure washer):
- Connect the pressure washer to a suitable water supply.
- Ensure all hoses and connections are secure and leak-free.
- Plug the pressure washer into a grounded electrical outlet with the correct voltage (127V).
- Turn on the pressure washer's main power switch. The motor will activate, and the pump will begin to pressurize the water.
- Engage the spray gun trigger to begin spraying. Release the trigger to stop the water flow; the motor may cycle on and off to maintain pressure.
- After use, turn off the pressure washer, disconnect it from the power supply, and relieve any remaining pressure in the system.
Important: Always refer to the complete user manual of your specific WAP Mini Plus pressure washer model for detailed operating instructions and safety precautions.
Maintenance
Proper maintenance is crucial for extending the lifespan of your electric motor and preventing common issues such as overheating and short circuits. Electric motors often fail due to overheating caused by excessive dirt accumulation, which can impede air circulation around internal wires.
Recommended Maintenance Practices:
- Regular Cleaning: Periodically open the pressure washer casing (if comfortable and safe to do so, or have a professional do it) to clean dust, dirt, and debris from around the motor's cooling fins and ventilation openings. Use compressed air or a soft brush.
- Ensure Proper Ventilation: Always operate the pressure washer in a well-ventilated area to allow for adequate airflow around the motor. Do not block the pressure washer's air vents.
- Avoid Overloading: Do not continuously run the pressure washer beyond its recommended duty cycle. Excessive continuous use can lead to motor overheating.
- Check Electrical Connections: Periodically inspect electrical connections for tightness and signs of corrosion. Loose connections can generate heat and lead to motor damage.
- Listen for Unusual Noises: Pay attention to any new or unusual noises coming from the motor, such as grinding, squealing, or excessive humming, which could indicate bearing wear or other internal issues.
- Professional Inspection: Consider having your pressure washer, including the motor, professionally inspected and serviced annually, especially with heavy use.
Safety Note: Always disconnect the pressure washer from the power supply before performing any cleaning or maintenance.
Troubleshooting
This section addresses common issues that may arise with the electric motor or its integration within the pressure washer. For complex problems, professional assistance is recommended.
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not start. | No power supply; tripped circuit breaker; faulty switch; loose wiring; seized motor. | Check power outlet and circuit breaker. Ensure pressure washer switch is ON. Inspect wiring for loose connections. If motor is seized, professional repair or replacement may be needed. |
| Motor overheats. | Blocked ventilation; excessive dirt accumulation; continuous overload; low voltage. | Clean motor and ventilation openings. Ensure adequate airflow. Avoid prolonged continuous use. Verify power supply voltage. |
| Motor makes unusual noises (grinding, squealing). | Worn bearings; foreign object inside motor; loose components. | Discontinue use immediately. Professional inspection and repair are required. |
| Motor runs but no pressure from washer. | Pump issue; water supply problem; air in system. | Check water supply. Bleed air from pump. Consult pressure washer manual for pump-specific troubleshooting. |
Warning: Do not attempt electrical repairs unless you are qualified. Always disconnect power before inspecting or working on the motor or pressure washer.
Warranty Information
This WAP Electric Motor comes with a 90-day warranty, in accordance with the Consumer Defense Code (CDC). This warranty covers manufacturing defects and material flaws under normal use and service.
The warranty does not cover damage resulting from:
- Improper installation or unauthorized repairs.
- Misuse, abuse, or negligence.
- Operating the motor outside its specified voltage or power limits.
- Lack of proper maintenance, including cleaning and ventilation.
- Normal wear and tear.
Please retain your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact WAP customer service or visit the official WAP store.
Official WAP Store: Visit WAP Store on Amazon
When contacting support, please have your product model (Mini Plus) and factory code (FW005089) available.





