York S1-025-38950-000 Flame Sensor W/34" Lead

The York S1-025-38950-000 Flame Sensor with 34-inch Lead is a vital safety component used to monitor burner flame presence in gas-fired HVAC systems. It operates by detecting flame conductivity and signaling the control board to maintain gas flow during normal ignition. This flame sensor is designed for use in York furnaces and compatible heating equipment. It enhances system safety by preventing unburned gas accumulation, supports reliable ignition, improves heating efficiency, and ensures stable furnace operation, making it essential for both residential and light commercial HVAC applications.