120-713

This premium Airflow Switch is a vital safety component for HVAC systems, including furnaces and air handlers. Designed as an air pressure or air proving switch, it monitors the system's internal pressure to ensure the blower motor or inducer fan is moving air correctly before allowing the heating or cooling cycle to engage. By verifying adequate airflow, this switch prevents overheating and ensures safe, efficient operation. If your unit is failing to ignite or displays a pressure switch error code, this replacement part is essential for restoring proper functionality. Built for durability and precision, it acts as a critical fail-safe for residential and commercial climate control equipment.
Type: Air Pressure Switch
Size: Standard
Application: Commonly used in furnaces, heat pumps, and air handling units to verify blower operation and venting safety.
Specifications: Sensitive air pressure differential monitoring; integrated safety circuit contact; designed for vacuum or positive pressure sensing applications.