York S1-024-36052-015 Pressure Switch

When you are dealing with a furnace lockout or a 4-flash error code on a York unit, the York S1-024-36052-015 Pressure Switch is the targeted solution for restoring safe ignition cycles. This high-precision HVAC air pressure switch features a .70" WC (water column) set point and a Single Pole Normally Closed (SPNC) configuration that is designed to open on rise. As an OEM York furnace part, it ensures the inducer motor is pulling the correct draft through the heat exchanger before allowing the gas valve to energize. This specific component is the direct replacement for S1-024-25329-703, providing a seamless fit for legacy York, Coleman, and Luxaire gas furnaces. Built to withstand the high-temperature environment of a burner vestibule, this furnace safety switch prevents hazardous flue gas buildup by monitoring critical venting pressure. For contractors, using this genuine Source 1 replacement part ensures the system remains within original manufacturing specifications for combustion air proving and long-term reliability.

• Precise Pressure Calibration: Factory set at .70" WC for accurate draft induction monitoring.
• Direct OEM Fit: Drop-in replacement for S1-024-25329-703, eliminating the need for mounting bracket modifications.
• Safety Compliance: SPNC Open on Rise logic prevents ignition if venting or intake blockages are detected.
• Broad Compatibility: Engineered for use across the York, Coleman, and Luxaire residential furnace lines.
• Durable Construction: High-grade diaphragm and electrical contacts designed for frequent cycling and thermal stability.

What are the symptoms of a failing pressure switch?
If the York S1-024-36052-015 fails, the furnace will typically enter a lockout state where the inducer motor runs continuously, but the igniter never glows. You may also see diagnostic codes signifying a "pressure switch stuck open" or "stuck closed" fault.

Why did my original pressure switch trip or fail?
Failures are often caused by diaphragm fatigue, but a trip is frequently triggered by external issues such as a clogged flue pipe, a failing inducer motor, or moisture buildup in the vacuum tubing. Always inspect the vacuum lines for cracks before replacing the switch.

Can I use a different pressure rating as a substitute?
No. The .70" WC rating is specific to the heat exchanger’s airflow requirements. Using a switch with a different set point can lead to unsafe combustion or frequent short cycling of the heating system.

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.