773-108

This premium air pressure switch is a critical safety component designed for residential gas furnaces and HVAC systems. As a dual-port air proving switch, it monitors the pressure differential created by the draft inducer motor to ensure the exhaust flue is clear and safe for combustion. Rated at 0.94" WC, this sensor prevents the heating cycle from proceeding if it detects venting obstructions or mechanical failure, protecting your home from potential hazards. If your furnace is cycling improperly or displaying a pressure switch lockout code, this reliable replacement part helps restore efficient heating performance and ensures your HVAC equipment operates according to strict safety standards.
Type: Air Pressure Switch
Size: Small
Application: Used in residential gas furnaces and HVAC heating systems to monitor draft inducer pressure and ensure proper venting before ignition.
Specifications: Dual port configuration, 0.94 inch Water Column (WC) pressure rating, air proving safety functionality.