York S1-025-30788-700 Flame Sensor Technicians should replace the gasket

Technicians should replace the gasket whenever the flue collection box or cover plate is removed for inspection

specifically HH12ZA189 and HH12ZA189A

Using a switch with a higher or lower rating than the 110-140°F specification can lead to dangerous operating conditions or nuisance tripping

Suction line filtration requires a different internal construction to manage lower pressures and higher velocities

Key Benefits for Technicians: OEM Compatibility: Serves as the factory-authorized direct replacement for 024-35812-000

York S1-025-30788-700 Flame Sensor Technicians should replace the gasketThe York S1 025 30788 700 Flame Sensor is a critical OEM replacement component designed for precise flame rectification within residential and commercial furnace assemblies. As a direct replacement for the legacy 025 30788 000, this sensor operates by utilizing the ionized particles in the gas flame to conduct a microamp signal back to the integrated furnace control board. When the York furnace flame sensor detects a stable flame, it allows the gas