York S1-473-20937-001 Hot Surface Ignitor

The York S1-473-20937-001 Hot Surface Ignitor is a critical OEM furnace replacement part engineered for high-performance ignition in York, Coleman, and Luxaire gas furnaces. This silicon carbide ignitior is designed to replace legacy components like 473-12509-001 and 473-05342-000, featuring a rapid-heat element that reaches ignition temperatures quickly to ensure reliable burner transition. This HVAC universal ignitor upgrade includes a reinforced mounting bracket and hardware to maintain precise alignment within the burner assembly, preventing premature failure due to improper positioning. For technicians troubleshooting furnace ignition failure, this unit provides a stable cold resistance profile (typically 40-90 ohms) to ensure compatibility with modern HVAC control boards. Its rugged construction is built to withstand high-heat cycling, making it a dependable choice for restoring gas furnace heating cycles without the need for field modifications. This assembly is standard for P3UCD and Diamond series units, providing a direct-fit solution for professional field service.

Key Benefits

• OEM Precision: Genuine S1-47320937001 component ensures factory-spec fitment and electrical compatibility.
• Enhanced Durability: High-grade silicon carbide construction resists oxidation and provides a stable life cycle under extreme thermal stress.
• Complete Install Kit: Includes the necessary hot surface ignitor bracket and screws for a secure, vibration-resistant mount.
• Improved System Reliability: Facilitates fast, consistent ignition to prevent gas valve lockout and system short-cycling.

Common Questions

How do I know if my York ignitor is bad?
If the inducer motor runs but the element fails to glow, or if you see visible cracks or white "dusty" oxidation on the carbide, the ignitor has failed. You can confirm this by checking for continuity; a reading of "open" or infinite resistance indicates a broken circuit.

Does this ignitor replace older "L" shaped or different bracket styles?
Yes, the S1-473-20937-001 often serves as an ignitor upgrade kit designed to replace several discontinued part numbers. The included bracket is designed to adapt to the original mounting holes in the burner plate.

Can I touch the black element during installation?
No. Never touch the silicon carbide element with bare hands. Skin oils create hot spots that lead to immediate failure when the part energized. Always handle the component by the ceramic base or the mounting bracket.

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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.