often caused by a restricted flue

Can I substitute this with a switch that has a higher temperature rating

Color-Coded Identification: The red finish allows for immediate visual verification of the spring pressure range during field inspections

making it a primary choice for technicians conducting field replacements

York S1-024-40873-000 Pressure Switch often caused by a restrictedThe York S1 024 40873 000 Pressure Switch is a critical safety component engineered for precise airflow monitoring in modern HVAC systems. Designed with a 0. 85" WC setpoint, this SPNO (Single Pole Normally Open) switch utilizes a "Close On Fall" logic to confirm the inducer motor is moving exhaust gases safely through the vent system. As a direct OEM replacement for S1 024 35786 000, it ensures factory spec calibration and timing for sequence of