York S1-024-34769-000 Pressure Switch

The York S1-024-34769-000 Pressure Switch is a high-precision safety sensor specifically calibrated for York, Coleman, and Luxaire gas furnaces. This Normally Open (N/O) differential switch monitors the vacuum created by the draft inducer motor to ensure proper combustion air flow before allowing ignition. With a factory-calibrated 1.60" WC set point and a 0.4" WC reset, this component prevents the unit from operating under hazardous venting conditions or restricted exhaust. As a veteran tech, you know that pressure switch failure often results in a "3-flash" or similar lockout code; replacing with this genuine OEM part ensures the system returns to its design specifications without the drift issues found in generic universal components. The 024-34769-000 inducer switch features a durable housing designed to withstand the heat cycles of a standard furnace cabinet while providing reliable electrical continuity for the 24V control circuit.

Key Benefits

• OEM Specification: Ensures a perfect fit and correct calibration for York furnace replacement parts.
• Accurate Monitoring: Precise 1.60 inch water column activation prevents delayed ignition and ensures safe combustion.
• Robust Design: The internal diaphragm construction is engineered for long-term cycling reliability in varying humidity conditions.
• Safety Compliance: Maintains the integrity of the combustion air safety circuit to prevent the operation of a restricted furnace.

Common Questions

How do I troubleshoot an S1-024-34769-000 pressure switch error?

First, check for obstructions in the flue pipe, moisture in the sensing tubes, or a failing inducer motor. Use a manometer to verify the inducer is pulling at least 1.60" WC before assuming the switch is faulty. If the vacuum is sufficient but the circuit doesn't close, the switch is likely defective.

Is this switch Normally Open or Normally Closed?

This is a Normally Open (N/O) switch. It requires the inducer motor to generate the specific vacuum pressure to close the internal contacts and complete the sequence of operation to the ignition control board.

Will this work on a high-efficiency condensing furnace?

This part is compatible with specific 80% or 90%+ AFUE York models that require a 1.60" WC trip point. Always verify the part number against the manufacturer’s technical data sheet for your specific model-serial combination.

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.