York S1-025-27747-002 Temp Control This compressed non-asbestos gasket is

This compressed non-asbestos gasket is built to withstand rigorous industrial steam applications

and PGB series furnaces

reduced torque

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

A trip is typically caused by restricted airflow

York S1-025-27747-002 Temp Control This compressed non-asbestos gasket 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