York S1-025-35354-000 Flame Sensor

The York S1-025-35354-000 Flame Sensor is a critical safety component designed for precise flame rectified signal monitoring in high-efficiency gas furnaces. As a veteran-grade OEM furnace flame sensor, this unit features a high-grade ceramic insulator and a durable Kanthal sensor rod, ensuring reliable microamp signal transmission to the integrated ignition control board. When the gas valve opens and ignition occurs, the York flame sensor replacement detects the presence of the burner flame through the process of ionization. If the sensor fails to confirm a flame within the designated trial-for-ignition window, the control board immediately terminates the gas valve voltage to prevent hazardous raw gas accumulation. Built to withstand the high thermal stress of York HVAC parts environments, the S1-025-35354-000 is engineered for long-term oxidation resistance. This L-shaped sensor rod is a direct drop-in for Coleman DGAA furnaces and various residential York, Luxaire, and Evcon systems, providing the rapid response time necessary to maintain consistent combustion cycles and prevent nuisance short-cycling lockouts.

• OEM Precision: Guaranteed York HVAC equipment compatibility for seamless integration with factory control boards and burner assemblies.
• Safety Compliance: High-sensitivity detection ensures immediate gas valve shutdown if combustion is interrupted, preventing dangerous gas buildup.
• Durable Construction: Engineered with premium metal alloys for superior resistance to soot accumulation and high-temperature oxidation.
• Efficient Troubleshooting: Standard 1/4" male spade terminal allows for quick multimeter testing of the microamp signal during service calls.
• Exact Fit: Designed as a direct S1-02535354000 replacement to restore factory-spec safety timings without field modifications.

What are the signs of a failing York S1-025-35354-000?
The most common symptom is short cycling, where the burners ignite but extinguish after 2 to 5 seconds. This typically indicates the sensor rod is dirty or has developed high impedance due to oxidation, preventing the control board from receiving a steady DC microamp signal.

Can I clean this flame sensor instead of replacing it?
While cleaning the rod with a non-conductive abrasive (like a Scotch-Brite pad) can temporarily restore the signal, microscopic pitting on the metal surface eventually leads to recurring failures. For professional-grade reliability in York gas furnaces, proactive replacement is recommended during annual maintenance if the signal strength is marginal.

Is this sensor compatible with all Coleman and York units?
This specific Source 1 flame sensor is optimized for model series starting with DGAA and DGAH. Always verify your specific model number on the rating plate to ensure the mounting bracket and rod dimensions match the existing configuration.

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.