Description
The York S1‑024‑35272‑000 Air / Pressure Switch is a genuine OEM safety control component for York furnaces and HVAC systems. This essential pressure switch monitors air/vacuum pressure — and automatically triggers when pressure drops below a specified threshold. As a “close-on-fall” switch, the S1-024-35272-000 ensures that your furnace’s inducer or draft system is running properly before allowing ignition or continuing operation, preventing unsafe combustion or venting issues.
Key Features
- OEM‑Grade Pressure Switch – Manufactured by York to ensure exact fit and full compatibility with original furnace systems.
- Close‑On‑Fall Functionality – Switch closes when pressure drops to –0.54″ WC (water column), ensuring vacuum/air‑flow conditions are correct before enabling ignition.
- Safety & System Protection – Helps prevent furnace ignition or operation when inducer motor fails, there’s blocked venting, or improper airflow — protecting against carbon monoxide risk or system damage.
- Reliable Operation – Designed to function consistently under typical furnace operating conditions, helping avoid nuisance shutoffs or unsafe starts.
- Direct Replacement Part – Matches OEM specifications for use in York (and compatible Coleman/Luxaire) furnaces that originally used this part number.






