The York S1-025-26362-700 is an OEM replacement flame sensor (cross-reference: 760-688) designed to deliver dependable burner flame detection in York heating systems. Flame sensors play a critical role in furnace safety — they verify that a flame is present during the ignition sequence and signal the control board to keep the gas valve open. If the sensor fails to detect a flame, the system shuts down to prevent unburned gas accumulation, protecting both equipment and occupants.
Key Features
- OEM York replacement part — ensures proper fit and function
- Cross-reference number: 760-688
- Monitors burner flame to confirm safe ignition and sustained combustion
- Helps prevent nuisance lockouts caused by a worn or contaminated sensor
- Restores reliable furnace operation and system safety
- Designed for use in compatible York furnace and heating applications
Why Replace Your Flame Sensor?
Over time, flame sensors accumulate oxidation and carbon deposits on the sensing rod, reducing their ability to pass the small electrical current needed to confirm flame presence. A degraded sensor is one of the most common causes of furnace short-cycling and no-heat calls. Replacing the sensor with a genuine York OEM part restores accurate flame detection and minimizes unnecessary service calls.
Compatibility
- Designed as a direct OEM replacement for York heating equipment
- Always verify compatibility with your specific unit model number before installation








