1. Introduction
The Ryobi RY40403A 40V Jet Fan Blower is designed for efficient clearing of wet and dry debris from various outdoor surfaces. This cordless unit offers powerful performance with a focus on user comfort and portability. It is part of the Ryobi 40V lithium-ion battery system, allowing for interchangeable battery use with other compatible tools.
2. Safety Information
Always read and understand all safety warnings and instructions before operating this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
- Wear appropriate personal protective equipment (PPE), including eye protection, hearing protection, and sturdy footwear.
- Keep children, bystanders, and pets at least 50 feet (15 meters) away from the operating area.
- Do not operate the blower in wet conditions or in the presence of flammable liquids or gases.
- Ensure the battery pack is securely installed before operation and removed before making any adjustments or cleaning.
- Inspect the blower for any damage before each use. Do not operate if damaged.
3. Setup
3.1 Attaching the Blower Tube
Align the blower tube with the main housing and twist until it locks securely into place. Ensure a firm connection to prevent detachment during operation.
3.2 Installing the Battery Pack
This Ryobi 40V Jet Fan Blower is a bare tool and does not include a battery or charger. It is compatible with all Ryobi 40V lithium-ion batteries, including models RY4030, RY4040, and RY4050.
- Ensure the blower is turned off.
- Slide a charged Ryobi 40V lithium-ion battery pack into the battery port on the blower until it clicks into place.
- To remove, press the battery release latch and slide the battery pack out.

4. Operating Instructions
4.1 Starting and Stopping
To start the blower, ensure a charged battery is installed, then press the variable speed trigger. To stop, release the trigger.
4.2 Variable Speed Control
The blower features a variable speed trigger. Press the trigger lightly for lower air speed and press it fully for maximum air speed. This allows you to match the power to the application, from delicate clearing to heavy-duty debris removal.
4.3 Turbo Button
For maximum power, press the Turbo button located on the handle while operating the blower. This will temporarily boost the air speed to 110 MPH and air flow to 480 CFM for stubborn debris.
5. Maintenance
Regular maintenance ensures optimal performance and extends the life of your Ryobi blower.
- Cleaning: Keep the air intake vents and blower tube free of debris. Use a dry cloth to wipe down the exterior. Do not use strong detergents or solvents.
- Battery Care: Store battery packs in a cool, dry place away from direct sunlight and extreme temperatures. Charge batteries fully before storage and periodically during long storage periods.
- Storage: Store the blower in a dry, secure location out of reach of children. If storing for extended periods, remove the battery pack.
6. Troubleshooting
If you encounter issues with your Ryobi blower, refer to the following common troubleshooting steps:
- Blower does not start: Ensure the battery pack is fully charged and properly inserted. Check for any obstructions in the blower tube or air intake.
- Reduced air flow: Clear any debris from the blower tube and air intake vents. Ensure the battery is fully charged.
- Excessive vibration or noise: Turn off the blower immediately and check for loose parts or foreign objects inside the housing or tube.
For persistent issues, contact Ryobi customer support or an authorized service center.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | RYOBI |
| Model Number | RY40403A |
| Power Source | Battery Powered (40V Lithium-Ion) |
| Voltage | 40 Volts |
| Air Flow Capacity | 480 Cubic Feet Per Minute (CFM) |
| Speed | Up to 110 Miles per Hour (MPH) |
| Special Feature | Turbo Button, Variable Speed Trigger |
| Form Factor | Handheld |
| Item Weight | 6.09 pounds |
| Product Dimensions | 32.5 x 5.5 x 10.5 inches |
8. Warranty and Support
For warranty information, product registration, or technical support, please refer to the official Ryobi website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.





