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Bard 539-406 - Fresh Air Damper Assembly

Bard part number 539-406 is an OEM Fresh Air Damper Assembly used on select Bard wall mounted package air conditioners to control outside air intake through the fresh air (ventilation) option. When the damper is sticking, damaged, or not sealing correctly, it can cause unwanted air leakage, comfort complaints, and ventilation performance issues, so replacing the complete 539-406 assembly helps restore proper intake operation and fit within the factory vent opening. Because damper configurations can vary by model and options, confirm the complete unit model and serial number against the Bard parts manual before ordering to ensure correct application and compatibility.


  • Technical Specifications
  • Product number: 539-406
  • Manufacturer description: FAD Assembly
  • HTS Code: "8415.90.8085"

$189.00

This Part is Used in These Models ℹ️