Some noises coming from your HVAC (heating, ventilation, air conditioning) unit is normal. What isn’t normal is when it starts making those strange noises that may be cause for concern. There are a bunch of different noises your HVAC unit can make, so being able to identify whether the noise is normal or abnormal is important. Check out this article to find out if your home is making a weird noise from HVAC system.
Normal Sounds
Let’s start out by discussing some of the noises you should expect. Sudden thumps, low pitched hums, “whooshing” noises, and buzzing sounds are all normal sounds that should be no cause for alarm. These noises happen to HVAC units constantly, so don’t be alarmed if any of these happen.
Abnormal Sounds
A squealing noise is one of the abnormal noises that is indicative of your HVAC unit needing repair. A squealing noise is probably the result your belt-driven motor, if you have one. The squealing usually indicates the belt is loose or worn out. In either case, it will need to be repaired.
A popping noise coming from your vents is an abnormal noise, but more of an annoyance than an issue. This popping is caused by the dust in your air ducts contracting and expanding as the temperature changes.
Another noise that may occur is the sound of metal hitting metal. This is likely the result of the fan blade hitting something, be it ice, wire, or tubing. If you hear this noise, shut the unit off immediately. This will need to be repaired.
If your HVAC unit is making any of these sorts of noises, it is of vital importance to get them checked out. No one wants to have a faulty A/C unit during these hot summers, or no heat during these cold winters. If you need help with any repairs, consider using TalkLocal to find a heating and air conditioning company for you. TalkLocal is a free service that will connect you with top-quality, HVAC companies in your neighborhood within minutes. Just enter in your specific problem, location and availability, and up to three companies will call YOU directly, saving you the time and stress of finding one yourself.
