1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your new Safety Mechanism Switch Sail Switch Replacement. This component is crucial for the safe and efficient functioning of your RV furnace. Please read this manual thoroughly before attempting any installation or maintenance.
2. Product Overview
2.1 Features
- Compatibility: Designed specifically for select Atwood RV furnaces, ensuring a perfect fit and seamless integration into your heating system, enhancing operational efficiency.
- Durable Construction: Made from robust materials, this replacement part is built to withstand the rigors of RV usage, providing long-lasting performance and reliability even in challenging conditions.
- Enhanced Safety: The sail switch plays a crucial role in the safety mechanism of your furnace, ensuring that the heating system operates only when conditions are safe, helping to prevent potential hazards.
- Easy Installation: This replacement sail switch is designed for straightforward installation, allowing you to quickly replace the old switch without the need for professional assistance.
- Improved Performance: By replacing a worn or malfunctioning sail switch, you'll restore optimal functioning of your RV furnace, ensuring consistent heat output and improved overall comfort during your travels.
2.2 Package Content
- 1 x Sail Switch
- 1 x Mounting Bracket
- 2 x Screws
Figure 1: Package contents - Sail switch, bracket, and screws.
3. Specifications
| Attribute | Value |
|---|---|
| Part Name | Sail Switch Replacement |
| Material | ABS |
| Color | BLACK |
| Compatibility | For Atwood RV Furnace Models:
|
4. Safety Information
WARNING: Always disconnect power to the RV furnace before attempting any installation, maintenance, or repair. Failure to do so can result in serious injury or death. If you are unsure about any step, consult a qualified technician.
- Ensure the furnace is completely cool before beginning work.
- Wear appropriate personal protective equipment (PPE), such as gloves and eye protection.
- Verify all connections are secure after installation.
5. Setup and Installation
This section guides you through the process of replacing the sail switch in your Atwood RV furnace. Refer to your specific furnace model's service manual for exact component locations if needed.
5.1 Pre-Installation Steps
- Disconnect Power: Turn off all power to your RV furnace at the main breaker or fuse panel.
- Access Furnace: Open the access panel to your RV furnace to locate the existing sail switch.
- Identify Old Switch: Note the position and wiring of the old sail switch. Taking a photo can be helpful.
5.2 Sail Switch Assembly
The sail switch and its mounting bracket may come unassembled. Follow these steps to prepare the new switch:
- Insert Switch into Bracket: Carefully slide the sail switch unit into the designated slot on the mounting bracket. Ensure the metal arm (sail) is oriented correctly to move freely.
Figure 2: Inserting the sail switch into the bracket.
- Secure with Screws: Use the provided screws to fasten the sail switch to the bracket. Do not overtighten.
Figure 3: Sail switch secured in the bracket.
5.3 Installation into Furnace
- Remove Old Switch: Disconnect the wiring from the old sail switch and carefully remove it from its mounting location.
- Mount New Switch: Position the new sail switch assembly in the same location as the old one. Ensure the sail (metal arm) is positioned to detect airflow from the furnace blower.
Figure 4: Positioning the new sail switch in the furnace.
- Connect Wiring: Reconnect the electrical wires to the new sail switch terminals. Refer to your photo or the furnace wiring diagram to ensure correct polarity and connections.
- Test Sail Movement: Gently push the metal arm of the sail switch to ensure it moves freely and actuates the internal switch mechanism.
5.4 Visual Guide (Video)
For a visual demonstration of the assembly and installation process, please watch the following video:
Video 1: Sail Switch Assembly and Installation Guide.
6. Operation
The sail switch is a safety device that ensures the furnace's blower motor is operating correctly before the burner ignites. When the furnace calls for heat, the blower motor starts. The airflow generated by the blower pushes against the metal arm (sail) of the switch, closing an electrical contact. This contact signals the control board that there is sufficient airflow to safely ignite the burner and distribute heat. If the blower fails or airflow is insufficient, the sail switch will not close, preventing the burner from igniting and thus preventing overheating or dangerous conditions.
7. Maintenance
Regular inspection of your sail switch can help ensure continued safe operation of your RV furnace.
- Annual Inspection: At least once a year, or before extended use, inspect the sail switch.
- Check for Obstructions: Ensure the metal arm (sail) is free from dust, debris, or any obstructions that could impede its movement.
- Verify Free Movement: Gently move the sail arm to confirm it pivots smoothly without sticking.
- Wiring Check: Inspect the wiring connections for any signs of corrosion, fraying, or looseness.
8. Troubleshooting
If your RV furnace is not operating correctly, the sail switch could be a potential cause. Always ensure power is disconnected before inspecting components.
| Problem | Possible Cause | Solution |
|---|---|---|
| Furnace blower runs, but no ignition/heat. | Sail switch not closing due to insufficient airflow or mechanical issue. |
|
| Furnace cycles on and off rapidly (short cycling). | Intermittent contact from sail switch or restricted airflow. |
|
| No furnace operation at all. | Could be sail switch, but also other components (thermostat, control board, power). |
|
9. User Tips
- Regular Cleaning: Keep the area around your furnace and the sail switch free of dust and lint to prevent obstructions.
- Pre-Season Check: Before the heating season, perform a quick check of your furnace, including the sail switch, to ensure it's ready for use.
- Professional Help: If you are uncomfortable performing any of these steps, it is always best to consult a certified RV technician.
10. Warranty and Support
This product is designed for reliable performance. For any issues or questions regarding this replacement part, please contact the seller or manufacturer for support. Keep your purchase receipt for warranty claims.
