York Parts S1-02427634001 Gas Furnace Air Pressure Switch

Gas Furnace Air Pressure Switch plays a critical safety role by monitoring furnace draft and confirming inducer operation before ignition. The York Parts S1-02427634001 Gas Furnace Air Pressure Switch is a direct replacement that delivers reliable pressure sensing for compatible York systems and other furnaces. It is designed as a dependable HVAC replacement part for technicians and DIY homeowners.

Set at 0.65 Iwc, this switch ensures proper sequencing and reduces the risk of failed starts due to low draft.

• Exact-fit replacement for York S1-02427634001 and compatible models, ensuring secure fit and reliable operation with minimal downtime
• Precise 0.65 Iwc setpoint maintains consistent safety checks and helps prevent ignition failures
• Durable construction withstands furnace vibrations and temperature swings for long service life
• Easy installation with standard wiring connections simplifies replacement and reduces downtime
• Furnace safety switch feature helps prevent improper ignition and draft-related shutdowns

Ideal as an HVAC replacement part, this pressure switch helps maintain reliable furnace performance and safety across heating seasons.