York S1-024-35262-000 Pressure Switch

As an HVAC professional, you know that a reliable draft proving circuit is non-negotiable for system safety. The York S1-024-35262-000 Pressure Switch is a genuine OEM replacement part specifically engineered for furnace repair and air handler applications. This 1.2" WC pressure switch features a Single Pole Normally Open (SPNO) configuration and is calibrated to close on fall, ensuring the inducer motor establishes a proper vacuum before allowing the ignition sequence to proceed. Its precision calibration prevents furnace short cycling and lockout conditions caused by blocked vents or compromised combustion airflow. When you are troubleshooting a furnace pressure switch, using a factory-spec York HVAC part eliminates the guesswork of universal alternatives, maintaining the exact differential pressure required by the control board. Designed for durability in high-demand residential and light commercial environments, this switch provides the exact SPNO switch action needed to protect the heat exchanger from unsafe operating conditions.

Key Benefits:

• OEM Precision: Guaranteed compatibility with York, Luxaire, and Coleman equipment, replacing the S1-024-35262-000 without cabinet modifications.
• Critical Safety Logic: Calibrated at 1.2" WC to ensure positive proof of draft, protecting against carbon monoxide rollout and overheating.
• Reliable Switching: High-quality SPNO contacts provide clean signal transmission to the integrated furnace control (IFC).
• Simplified Install: Features standard spade terminals and a compact housing for quick swap-outs during emergency service calls.

Common Questions:

Will this switch fix a "Pressure Switch Stuck Open" error code?
If your voltmeter shows 24V entering the switch but 0V leaving while the inducer is at full speed, this OEM York furnace part is the likely solution. Always check for cracked pressure switch tubing or a clogged condensate trap before confirming a diaphragm failure.

Can I use this to replace a switch with a different WC rating?
No. HVAC safety circuits require exact matches. A 1.2" WC close on fall rating is specific to the blower performance and venting static of your particular furnace model.

What causes these switches to fail prematurely?
Moisture in the pressure tubing or blocked flue pipes can stress the internal diaphragm. Ensure the furnace is draining correctly to prevent water from backing up into the switch housing.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.