Why Is My HVAC System Making Noise?

October 16, 2019
Posted in: Homeowner Tips

If you find yourself asking “Why is my HVAC making that noise and what does it mean?” then you’ve come to the right spot. When there is an issue with your air-handling unit, whether it is an air conditioning unit, a furnace, or a ventilator,it may sometimes make strange noises that mean different things. Here are the possible sounds that your system might make and what they mean:

A rattling noise coming from your system can indicate several different problems with your system depending on where the sound originates. If it comes from the outdoor unit, it probably means there is debris in the system. To fix this, turn your system off, cut the power form the unit, and manually remove the debris. While you’re there, check for any damages that the debris may have caused. If there is visible damage, call us to service your system.

Just like how a kettle hisses once water has been boiled within it, a hissing noise coming from your air handling system is caused by air escaping the system. First, determine where the sound is coming from. If it is coming from the walls, your ducts may be leaking. If it is coming from your air vents, the filter on your unit may not be installed properly/ may be the wrong size, allowing air to escape. To fix these issues, schedule a service appointment with an expert HVAC Company in Whitby to fix any leaks and swap your old ill-fitting filter for one that is the proper size.

A clanking noise indicates that something is extremely wrong with your system. In fact, it usually means that loose parts are rubbing together or banging together inside the system. If you hear clanking noises, stop the system and get it repaired immediately before the rubbing together of loose parts creates costly damages in your system.

Being aware of how your AC, furnace, or ventilator operates and what may indicate that it is in need of maintenance is the best way to ensure that it lasts as long as possible. If your furnace or air conditioning system begins to make any of these noises or begins to act strange, contact us at Taunton Trades today at 905-493-4227 or for fast and easy maintenance work.


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