click this and unfastened ductwork. Unfastened air ducts could cause a rattling audio in the event the air passing through them produces vibrations which can be amplified if the ducts are certainly not securely mounted.If your HVAC is making a banging sounds, This is certainly an indicator of a difficulty With all the compressor. The compressor is exactly what pumps refrigerant into your air handler, which consequently cools and heats your property.Find out article content that specify why your HVAC system is making noise. Get professional tips and suggestions for troubleshooting and click reference repairing common HVAC sound issues.