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While optimized for 24VAC control circuits
you must verify the specific 170-20 SB temperature rating
This L150-40F equivalent switch is built for high-duty cycles and long-term reliability in varying airflow environments
It is not interchangeable with 325-3 or 325-7 series bodies due to length and tension variations
York S1-025-35306-000 Flame Sensor While optimized for 24VAC controlProfessional grade furnace diagnostics begin with reliable verification of the burner assembly, and the York S1 025 35306 000 Flame Sensor is the specific OEM replacement part required to maintain system safety. This 4 inch flame sensor features a precise angle bend and a single hole mounting design, engineered to interface directly with the control board via a standard 1 4 inch male quick connect terminal. It functions through the process of flame