773-301

This Goodman Pressure Switch is a critical safety component designed for residential gas furnaces and HVAC systems. As an air-proving switch, its primary function is to monitor the negative pressure generated by the draft inducer motor, ensuring the venting system is clear and functional before allowing the furnace to ignite. Rated at -0.10" WC (Water Column), this vacuum-actuated switch prevents the heating cycle from proceeding if it detects inadequate airflow, protecting your home from potential safety hazards like flue gas backup. It is a vital replacement part for homeowners or technicians troubleshooting furnace ignition failures, pressure switch lockout codes, or intermittent heating issues.
Type: Air Pressure Switch
Size: Small
Application: Used in residential gas furnaces and HVAC heating equipment to verify proper draft inducer operation and flue venting.
Specifications: Pressure Rating: -0.10" WC (Water Column); Function: Air Proving / Safety Interlock; Actuation: Vacuum-based