773-284

This dual-stage air pressure switch is a vital safety component for Goodman and Amana high-efficiency gas furnaces. As an essential air proving switch, it monitors the negative pressure created by the draft inducer motor to ensure that the heating system is venting combustion gases correctly before allowing the furnace to ignite. Specifically engineered for 2-stage heating systems, this switch features two distinct pressure setpoints to handle different blower speeds. If your furnace is failing to ignite or displaying pressure switch circuit error codes, this replacement part helps restore reliable operation and ensures your HVAC system meets necessary safety standards for residential heating.
Type: 2-Stage Air Pressure Switch
Size: Standard HVAC component
Application: Designed for use in dual-stage residential gas furnaces and HVAC heating systems to monitor inducer motor pressure and ensure safe combustion airflow.
Specifications: Dual-stage calibration; Setpoint 1: -0.67" WC; Setpoint 2: -1.25" WC; Function: Air proving and safety interlocking.