York S1-025-29084-700 Hot Surface Ignitor

The York S1-025-29084-700 Hot Surface Ignitor is a critical OEM replacement component designed for high-performance gas-fired furnaces and industrial heating equipment. Engineered with a robust silicon carbide or silicon nitride core, this 120V HSI ensures rapid, reliable ignition by reaching peak temperatures within a 17-second warm-up window. As a veteran-grade furnace ignitor replacement, it eliminates the inefficiencies of traditional pilot lights, optimizing fuel consumption and maintaining the structural integrity of the heat exchanger through consistent combustion cycles.

This HVAC ignition assembly is built to the exact specifications of York units, providing a direct fit that minimizes field modifications. Technicians should note that while this specific part number has seen manufacturer updates, the S1-025-29084-700 remains a primary cross-reference for numerous York furnace parts. Proper installation requires careful handling of the element to avoid oil contamination from skin, which can lead to premature hot surface ignitor failure. This part is essential for restoring 120V ignition circuits in residential and commercial packaged units.

• Rapid Heat-Up: High-density material ensures the 120V ignitor reaches ignition temperature quickly for efficient gas combustion.
• OEM Precision: Guaranteed compatibility with York HVAC gas furnaces and industrial ovens, ensuring seamless integration into existing control boards.
• Durable Construction: Engineered to withstand high-thermal cycling without fracturing, extending the service life of the heating system ignition.
• Efficiency Optimization: Replaces standing pilots to reduce gas waste and improve overall AFUE ratings of the appliance.

Is the S1-025-29084-700 a universal ignitor?
No, this is an OEM-specific York hot surface ignitor. While it may visually resemble universal 120V ignitors, the mounting bracket and electrical connector are designed specifically for York-branded equipment to ensure safe and reliable operation.

What causes this ignitor to fail?
The most common causes are physical cracks, soot buildup, or moisture exposure. In many York rooftop units, moisture intrusion in the electrical cabinet can lead to shorts. Always handle the new element by the ceramic base to prevent skin oils from creating hot spots on the carbide surface.

Can I test this ignitor with a multimeter?
Yes, technicians can check for continuity or measure resistance across the leads. A reading of "open" (OL) indicates a broken element. During the start-up sequence, verify that the control board is delivering a full 120V to the ignitor terminal.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.