York S1-024-39714-000 Pressure Switch

The York S1-024-39714-000 Pressure Switch is an essential safety component engineered for precise airflow monitoring in York, Luxaire, and Coleman gas furnaces. This single-stage inducer draft sensor is calibrated to a specific set point of -0.90" W.C., ensuring the combustion blower is evacuating flue gases before the ignition sequence begins. Designed as the direct replacement for S1-024-35779-000, this OEM part eliminates the calibration drift often found in universal components, maintaining the narrow tolerances required for high-efficiency heating systems. When a furnace throws a code for a York furnace pressure switch stuck open, it typically indicates a diaphragm failure or an obstruction in the venting; replacing the faulty unit with a genuine S1-024-39714-000 restores the narrow-profile sensing necessary for operation. This HVAC induction switch features standard spade terminals and a vacuum port for quick integration. For technicians performing furnace pressure switch troubleshooting, this -0.90" WC switch is the verified factory solution for maintaining system integrity and sequence of operation.

Key Benefits for Contractors

• Exact Calibration: Factory set at -0.90" W.C. to match original equipment manufacturer specifications for reliable safety circuit completion.
• Direct Cross-Reference: Functions as the official York S1-024-35779-000 replacement, ensuring a drop-in fit without modifying mounting brackets or vacuum lines.
• Industrial Durability: Constructed to withstand the high-temperature environment of the furnace burner compartment and the constant cycling of the inducer motor.
• OEM Reliability: Prevents premature lockout errors and diagnostic headaches associated with non-standardized aftermarket switches.

Common Questions

What is the set point for York S1-024-39714-000?
This switch is calibrated to trigger at -0.90 inches of water column (W.C.), which is specifically tuned for the airflow characteristics of the draft inducer in compatible York models.

Why is my York furnace pressure switch stuck open?
This error usually occurs when the inducer motor fails to pull enough vacuum, or the internal diaphragm of the switch has ruptured. If the venting is clear and the motor is at full RPM, the S1-024-39714-000 should be tested for continuity.

Can I use this to replace part number S1-024-35779-000?
Yes, the S1-024-39714-000 is the direct, updated replacement for the older S1-024-35779-000 model, providing the same technical specifications and physical footprint.

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.