York S1-025-30802-000 Flame Sensor

As a veteran tech, you know that a nuisance lockout is often traced back to a fouled or failing flame rectification circuit. The York S1-025-30802-000 Flame Sensor is the direct OEM solution for restoring reliable flame signal monitoring in York, Luxaire, and Coleman gas-fired furnaces. This 90-degree bend flame sensor is built with a high-grade ceramic insulator and a durable stainless steel probe designed to withstand the intense thermal cycling of the burner assembly. Featuring a standard 1/4-inch quick connect terminal and an integrated flange mount, it ensures a precise fit and immediate electrical continuity. Whether you are dealing with carbon buildup or a cracked insulator, replacing the old sensor with this genuine York replacement part eliminates intermittent ignition failures and prevents unburned gas accumulation. Designed for HVAC professional use, this TAA/BAA compliant sensor is a critical safety component for maintaining domestic heating systems.

• Direct OEM Compatibility: Specifically engineered for York HVAC systems to ensure the correct microamp signal to the ignition control board.
• Durable Construction: Features high-temperature ceramic insulation to prevent electrical grounding and signal leakage.
• Efficient Installation: The 90-degree probe design and quick connect terminal simplify terminal landing and mounting in tight burner compartments.
• Safety Compliance: Vital for flame rectification, ensuring the gas valve slams shut if no flame is detected.
• Made in the USA: High-quality manufacturing that meets TAA/BAA standards for government and commercial contracts.

What are the symptoms of a failing S1-025-30802-000?
The most common sign is the furnace lighting for 2–5 seconds and then immediately shutting down (cycling), followed by a flame failure fault code on the control board.

Can I just clean the sensor rod instead of replacing it?
While cleaning with a light abrasive can temporarily remove oxidation, it is often a short-term fix. If the ceramic is cracked or the metal is heavily pitted, a full replacement is required to maintain a consistent flame signal.

Does this part include the mounting screw?
Typically, this sensor includes the attached mounting flange, but you should retain your existing mounting screw for the final installation.

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.