York S1-025-29041-001 Limit Switch A tripped or blown fuse

A tripped or blown fuse often indicates a draft issue or soot accumulation on the heat exchanger

For Bard HVAC safety and liability compliance

which is essential for diagnosing airflow or combustion issues that triggered the 160°F high-limit event

If the pilot flame frequently flickers or goes out due to external drafts

you know that field-drilling an HVAC burner orifice is a safety risk

York S1-025-29041-001 Limit Switch A tripped or blown fuseThe York S1 025 29041 001 Limit Switch is a critical OEM safety component engineered for precise thermal monitoring in high efficiency furnace and air handling units. Specifically designed as an Auto Reset Limit Switch, it features a 3 inch probe insertion to accurately gauge plenum temperatures. This HVAC high limit control is calibrated to trigger at a high end threshold of 220F and reset at 190F, preventing heat exchanger damage and ensuring safe