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Frequent tripping usually indicates restricted airflow
Built to withstand operating temperatures from 35
What is the difference between the H721LC and H-721LC
is a high-performance Sylphon base gasket engineered for a precise seal in steam and hydronic applications
Clogged or damaged orifices can cause uneven heating or burner failure
York S1-025-35397-000 Limit Control Frequent tripping usually indicates restrictedThe York S1 025 35397 000 is an essential manual reset limit control engineered for precision thermal monitoring within high efficiency furnace heat exchangers and air handling units. As a genuine OEM York replacement part, this HVAC safety switch is calibrated to provide high limit protection by breaking the electrical circuit to the gas valve or ignition control if internal temperatures exceed factory safety thresholds. Unlike automatic switches,