040-684

Ensure the safe and efficient operation of your heating system with this high-quality Pressure Switch Assembly. Designed as a critical safety component for high-efficiency gas furnaces, this air proving switch monitors the pressure differential created by the draft inducer motor. It confirms that the exhaust flue is clear and that proper airflow is established before allowing the ignition process to begin. A failing pressure switch can cause your furnace to shut down or prevent it from starting altogether. Replacing a worn or malfunctioning air pressure switch is a common solution for restoring reliable heat and ensuring your HVAC system meets safety protocols. This assembly is built for precision and durability, making it an essential part for furnace maintenance and repair.
Type: Air Pressure Switch
Size: Standard
Application: High-efficiency condensing gas furnaces and residential HVAC heating systems.
Specifications: Differential pressure sensing, diaphragm-actuated safety mechanism, heat-resistant construction, normally open electrical contacts.