York S1-025-45231-000 Ignitor

The York S1-025-45231-000 Ignitor is a high-performance silicon nitride hot surface ignitor designed for professional HVACR maintenance and repair. This OEM furnace replacement part is engineered to withstand the rigorous thermal cycling of modern gas-fired equipment, offering a significant upgrade over traditional silicon carbide components. As a direct replacement for S1-025-49808-000, it ensures precise fitment and electrical compatibility without the need for field modifications. Operating at 120V AC, this ignitor features rapid heat-up times and superior resistance to oxidation and physical handle-shock. Its robust silicon nitride construction provides a durable ignition source for York, Coleman, and Luxaire gas furnaces, ensuring reliable burner sequence operation even in demanding residential and commercial applications.

• Durable Silicon Nitride: Resistant to thermal expansion stress and physical impact, ensuring long-term operational stability.
• Direct OEM Compatibility: Verified 120V drop-in replacement for part number S1-025-49808-000 and compatible with 789A-956A1.
• High-Temperature Insulation: Equipped with Teflon-coated leads rated for 250°C to prevent premature lead failure.
• Optimized Ignition Cycle: Faster surface temperature ramp speeds improve fuel-air mixture ignition reliability and system efficiency.

Is the S1-025-45231-000 compatible with older York furnaces?
Yes, this silicon nitride ignitor is specifically designed to replace the older S1-025-49808-000 and is backwards compatible with many York, Luxaire, and Coleman models requiring a 120V HSI.

What is the resistance reading for a functioning S1-025-45231-000?
When testing with a multimeter in a cold state, a standard York furnace ignitor of this type typically measures between 11 and 18 ohms. Significantly higher resistance or an open circuit indicates a failed component.

Does this kit include mounting hardware?
Most configurations of the S1-025-45231-000 ignition kit include the necessary mounting bracket and OEM-style plug for a secure mechanical and electrical connection.

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.