It’s normal for your HVAC system to make some noise when it’s working to cool your Stuart, Florida, home. A quiet hum or the sound of air whooshing through your vents are no cause for alarm, but other odd noises may indicate that your system needs maintenance, replacement, or repair. If you hear any of the following strange sounds coming from your HVAC system, you should call an HVAC professional immediately.

Banging or Clanking

A banging or clanking sound is usually an indicator that there’s a part in your air conditioner that’s loose or out of balance. An HVAC professional can help to identify where the part is and fix it before it becomes a major issue. The best course of action is to shut down your system and call us as soon as you hear any usual banging or clanking.

Squealing or Buzzing

Squealing and buzzing are two sounds associated with fan and motor issues. Squealing usually indicates that there’s an issue with your blower motor or fan motor. Buzzing can be caused by a lot of different problems such as unbalanced fan blades or an outdoor motor about to fail. Having a scheduled AC maintenance plan will help your home to stay as energy-efficient as possible and avoid costly repairs.


If you hear a whistling noise that sounds like a scream, it can mean that there’s a hazardous refrigerant leak. It can also indicate high internal pressure in the AC unit that can lead to an explosion. Should you hear screaming, immediately shut your system down and call a professional.

Don’t ignore strange noises that could indicate your HVAC system is in trouble. If a minor problem is left to fester, it can lead to major issues and more expensive fixes in the future. We can help you with any HVAC repair or maintenance today. Call Grimes Heating & Air Conditioning at (772) 800-6416.

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