Durable Construction: High-impact white plastic resists yellowing and mechanical shock

Durable Construction: Heavy-duty insulation protects against environmental degradation in residential and commercial applications

Pressure switches must match the manufacturer’s specified set point exactly

Key Benefits: Galvanic Corrosion Protection: Maintains the essential electrical break in 1 1/4" dielectric unions to prevent electrolytic action

Superior Adhesion: Industrial-strength pressure-sensitive adhesive bonds to copper

York S1-025-35306-000 Flame Sensor Durable Construction: High-impact white plasticProfessional 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