York S1-024-35270-000 Pressure Switch If replacing the batteries and

If replacing the batteries and cleaning the infrared sensor tip does not restore communication

this is a 1-pole unit with a shunt

For technicians troubleshooting HVAC limit circuit issues

Industrial Durability: The white color-coded design allows for quick identification during field service and minimizes installation errors

this board provides dual circuits capable of managing up to three auxiliary heating stages

York S1-024-35270-000 Pressure Switch If replacing the batteries andThe York S1 024 35270 000 Pressure Switch is a critical safety component designed for specific York, Luxaire, and Coleman furnace models. Operating as a SPNO (Single Pole Normally Open) switch, it is calibrated to a . 45" WC set point, closing on a fall in pressure. This HVAC inducer pressure switch ensures the draft inducer motor is moving sufficient air through the heat exchanger before the ignition sequence begins, preventing hazardous combustion