Lennox 14A43 Furnace Pressure Switch

The Lennox 14A43 is a pressure switch designed for Lennox furnace systems. This critical safety component monitors air pressure within the furnace to ensure proper venting and safe operation. The pressure switch verifies that the inducer motor is creating adequate draft before allowing the furnace to ignite, preventing dangerous exhaust gases from entering the home.

Key Features:

• OEM Lennox replacement part for reliable performance
• Safety control that monitors furnace draft pressure
• Ensures proper venting before ignition sequence
• Direct replacement for original equipment
• Critical component for furnace safety and operation

This pressure switch is a genuine Lennox OEM part designed to meet the manufacturer's exact specifications. When the pressure switch fails, the furnace will not operate, making this an essential component for system restoration. Professional installation is recommended to ensure proper setup and calibration.