773-303

Ensure the safe and efficient operation of your home heating system with this high-quality Air Pressure Switch. Designed as a critical safety component for gas furnaces and HVAC units, this air proving switch monitors the negative pressure generated by the inducer motor. By verifying that the exhaust fan is creating proper airflow and that the venting system is clear, it allows the ignition process to proceed safely. If your furnace is failing to start or cycling off prematurely due to airflow issues, this replacement pressure sensor, calibrated to a -0.67" WC set point, is essential for restoring reliable heat and maintaining system integrity. Durable and precision-engineered, it serves as a vital safeguard against improper combustion and venting failures.
Type: Air Pressure Switch
Size: Small
Application: Gas furnaces, residential HVAC heating systems, and forced-air induction systems for verifying airflow and venting safety.
Specifications: Pressure Setting: -0.67" WC (Water Column); Function: Air Proving and Inducer Motor Safety Monitoring