HVACA HVAC system produces normal sounds, such as a quiet hum through the vents or a loud whooshing sound. Sometimes, HVAC systems can make louder and more disruptive noises than they should. These noises don’t have a place in your home. Below are the most common HVAC sounds and their solutions.

Rattling Sound

It could indicate several things if your HVAC system makes a rattling sound. It could be that your outdoor unit is producing the rattling sound. Even though the grate protects your unit against large debris, it is possible for small items to still get through. You can turn off the system, reduce the power and remove the debris. If you find visible damage to the fan, condenser coils or compressor, you should call an HVAC contractor. If you suspect the noise is internal, turn off the system immediately and call your technician.


If you hear a hissing sound, it is likely that air is escaping from the unit. If the noise comes from the walls, it is likely that your ducts are leaking. This can cause noise problems and water wastage as the air is not circulated through your home but instead leaking into the walls. Some homeowners may not be skilled in repairing ducts. This is why it is important to contact a Florence HVAC contractor immediately. The air vents may emit a light hissing sound. This could be due to an incorrectly installed or sized filter that creates a hole in the seal. This can be fixed by making sure that the filter is correctly installed and the right size.


A properly functioning HVAC system will produce a hum when it is operating. If it’s making a clicking sound, you need to be cautious. This could indicate that the unit is not working properly. These problems can cause costly damage to your unit. Call an HVAC contractor immediately and turn off your unit.

Increase the life expectancy of your HVAC unit

A HVAC system can be a significant investment. With proper maintenance and care, an HVAC system can last for up to 20 years. There are many things that homeowners can do to prolong the life of their heating and cooling units and get the best value for their money.

You should have your unit cleaned before the season begins. This will ensure that any small problems are caught early, and prevent costly repairs. Make sure to clean your air filters every so often and that they aren’t clogged.

Florence HVAC Experts can help you if your HVAC system makes unusual noises or you need assistance with installation or maintenance.

Florence HVAC Experts
Florence, SC 29501