Description
The York S1-02530802000 Flame Sensor is a burner monitoring component used to detect the presence of fire during furnace operation and confirm proper ignition within the heating cycle. It operates through thermal rectification, sensing burner flame conductivity and sending a verification signal to the ignition control board so gas flow can continue securely. Commonly installed in gas furnace HVAC systems, the sensor is positioned adjacent to the burner assembly, where direct contact occurs during operation. Its role supports secure combustion control, assists in preventing ignition conditions and contributes to stability.
