York S1-025-27747-002 Temp Control If the pilot flame is

If the pilot flame is clean and hitting the probe but the valve won't hold

This auto reset limit switch features a 3-inch insertion depth and is factory-calibrated for an L200-40 configuration

Reliable flame rectification and efficient heat exchange depend on the precise replacement gas orifice geometry found in this factory-authorized component

and 210G bodies

reduced torque

York S1-025-27747-002 Temp Control If the pilot flame isThe York S1 025 27747 002 serves as a high integrity safety component engineered for precise thermal regulation within furnace and air handler assemblies. This manual reset high limit switch is factory calibrated to open at 200 degrees Fahrenheit, functioning as a primary fail safe to interrupt the burner circuit or unit operation if internal temperatures exceed engineered safety thresholds. As a critical HVAC safety control, it prevents heat