HVAC Noises You Should Never Ignore

Although some noises from your HVAC system are normal, others may indicate major problems. You should never ignore the HVAC noises as those weird and scary furnace sounds can be much more dangerous.


Although banging is common, you shouldn’t ignore banging noises. If you hear banging or clanking noises, this often means there’s a part loose, usually the motor or blower. There are two basic reasons why your HVAC system may be making a loud banging noise. Metal ducts in your home may make a pounding sound from time to time as they expand and contract. Continuous banging could potentially signal an issue with the ignition.


A rattling or scraping sound can indicate that there are loose components. You can try tightening your panel to see if that fixes the sound. A rattling noise can also indicate that one of the crucial parts of the unit is broken, or it could indicate a leak or crack in your heat exchanger. If you cannot solve the rattling sound, contact your local HVAC company right away!


Evaporator coils are used in your HVAC system. The cracking sounds you hear are usually caused by the frozen coils melting. Regular maintenance and inspections can aid in the early detection of these concerns. As a result, a professional will be able to address the issue before it becomes more serious.


Squealing noises usually indicate that there’s a problem with your system’s fan motor, motor parts are misaligned, or from the air compressor. An inspection is required to discover the exact cause and severity of the problem.

Schedule an Inspection

We’re sure it’s not the most comforting to hear those banging, rattling, cracking, and squealing sounds. If you hear any concerning noises, it’s best to have it inspected by a professional as soon as possible.
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