773-045

This Goodman-compatible Air Pressure Switch is a vital safety component for high-efficiency gas furnaces and HVAC heating systems. Designed as an air proving switch, it monitors the draft and vacuum pressure generated by the inducer motor to ensure the system is venting correctly before allowing the furnace to ignite. This pressure switch is calibrated to a -0.10" WC (Water Column) set point, providing precise airflow detection to prevent hazardous operating conditions. If your heating system is experiencing ignition failure, frequent cycling, or error codes related to venting, replacing the vacuum switch can restore reliable performance and ensure home safety. This durable replacement part is engineered to meet rigorous HVAC standards for performance and longevity.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Used in high-efficiency gas furnaces and heating systems to monitor inducer blower draft and ensure safe combustion airflow.
Specifications: Set Point: -0.10" WC (Water Column); Function: Air Proving/Vacuum Sensing