Not known Factual Statements About Common HVAC noises and their causes May 27, 2024 Category: Blog recommended you read which include popping, you could have very little to worry about. Popping generally is a common noise that originates from your ductwork if the warmth hasn't been utilized in an extended timeframe.This may sign a bad lover belt inside the blower. Whether it is, that belt must get replaced. The sound also could suggest which the motor needs lubricant—which you may or may not have the capacity to do yourself with regards to the furnace make and product.One more common HVAC sound is find out rattle. This may mean that your compressor is failing. What's more, it could a pulley with failing bearings. Or it could be a worn-out compressor clutch. Any person of such concerns warrants the attention of an HVAC technician.