773-298

This Goodman -0.54" WC Pressure Switch is a critical safety component designed for high-efficiency gas furnaces and HVAC heating systems. As an air proving switch, its primary function is to monitor the negative pressure generated by the draft inducer motor, ensuring that combustion gases are being properly exhausted before the ignition process begins. If your furnace is failing to ignite or showing a pressure switch lockout code, this replacement part is essential for restoring safe and reliable operation. Engineered for precision, it detects specific pressure drops to prevent the heating system from running under unsafe venting conditions, such as blocked flues or failing blower motors. This durable switch is a standard requirement for maintaining the performance and safety of residential forced-air heating units.
Type: Air Pressure Switch
Size: Small
Application: Used in gas furnaces and HVAC units to monitor inducer motor draft and ensure proper venting before ignition.
Specifications: Pressure Setting: -0.54" WC (Water Column); Function: Air Proving/Safety Cut-off; Sensor Type: Negative Pressure Diaphragm.