773-053

This premium air pressure switch is a critical safety component designed for residential gas furnaces and HVAC heating systems. Calibrated to a 0.17" WC (water column) set point, this air proving switch monitors the draft created by the inducer motor to ensure proper venting of exhaust gases. It acts as a fail-safe, preventing the burner from igniting if it detects insufficient airflow or a blockage in the flue. Ideal for furnace repair and routine maintenance, this sensor helps resolve common heating issues such as failure to ignite, intermittent cycling, or pressure switch lockout codes. Built for reliability and precision, it ensures your heating equipment operates safely and efficiently.
Type: Air Pressure Switch
Size: Small
Application: Commonly used in residential gas furnaces and HVAC units to prove airflow from the inducer blower before allowing ignition.
Specifications: 0.17" WC set point, air proving safety sensor, diaphragm-actuated mechanism