York Parts S1-02435275000 Gas Furnace Air Pressure Switch

Gas Furnace Air Pressure Switch S1-02435275000 from York Parts ensures safe ignition and reliable furnace operation. This direct replacement part for York gas furnaces verifies venting before the burner lights, protecting against rollouts and shutdowns caused by improper drafts. With a precise setpoint range of 0.20–0.35 inches of water column, it detects sufficient combustion air and communicates with the furnace control to maintain stable performance. Engineered for consistent pressure sensing and durable service, this air pressure switch is a trusted furnace pressure switch that supports safety and efficiency. Use as a dependable HVAC replacement part to extend the life of your gas furnace.

• Direct replacement for York gas furnace S1-02435275000 with plug-and-play compatibility.
• Precise setpoint range: 0.20–0.35 in. wc for consistent, safe operation.
• Rugged construction designed to withstand furnace heat and vibration.
• Easy installation with standard wiring and mounting options.
• Enhances furnace safety, efficiency, and longevity as part of your HVAC replacement parts.