773-237

Ensure your heating system operates safely and efficiently with this genuine-style replacement air pressure switch for gas furnaces. Designed specifically for HVAC systems requiring a 0.35" WC (Water Column) set point, this air proving switch acts as a vital safety sensor. It monitors the vacuum pressure created by the inducer motor to verify proper airflow and flue venting before allowing the ignition process to begin. If your furnace is cycling incorrectly or failing to ignite due to pressure-related error codes, replacing a faulty switch is essential for restoring reliable heat. Built for durability and precise calibration, this component helps maintain optimal combustion and prevents hazardous conditions in residential heating units.
Type: Air Pressure Switch
Size: Standard HVAC component
Application: Gas furnaces, heating systems, and forced-air HVAC units requiring an inducer blower safety verification.
Specifications: Pressure Rating: 0.35" WC (Water Column); Function: Air Proving / Inducer Safety