773-248

This high-quality Air Pressure Switch is a vital safety component for residential gas furnaces and HVAC systems. Calibrated to a precise 0.85" WC (Water Column) set point, this air proving switch monitors the draft inducer motor's performance to ensure proper airflow is established before the heating cycle begins. If your furnace is cycling incorrectly, failing to ignite, or displaying pressure switch lockout codes, this reliable replacement part can restore your system to peak performance. Designed for durability and precision, it acts as a critical fail-safe, preventing the burner from igniting if venting or combustion air is insufficient, thereby protecting your home and heating equipment.
Type: Air Pressure Switch / Air Proving Switch
Size: Standard HVAC component
Application: Compatible with high-efficiency gas furnaces and HVAC units requiring a vacuum-actuated safety switch for draft inducer verification.
Specifications: Pressure Rating: 0.85" WC; Function: Normally Open; Application: Air Proving and Combustion Safety.