Central air conditioners can make a variety of noises. But one that can be startling is when your outside air conditioning/heat pump unit makes a buzzing/crackling/snapping noise.
This isn’t normal and is a sign that a professional needs to fix your AC.
So, what’s the problem exactly?
A buzzing noise is usually a sign that there’s an electrical issue with the AC. It’s just a result of your AC wearing down over time.
The noise you’re hearing is usually a sign of “electrical arcing”, an electrical discharge you see when electricity is jumping between circuitry. Here’s a giant electrical arc to show you what we mean.
A few electrical components that could be causing the buzzing include:
Even if your AC is cooling your house fine, that does not mean it’s OK to run. Running your air conditioner in this state could harm it (making the repair much more expensive than it needs to be.). So, it’s better to be safe than sorry.
For finding a good contractor, check out our article, Top 10 Essential Qualities to Look For in an HVAC Contractor.
Do you live in Florida? Cool Today may be able to help! We provide award-winning air conditioning service to homeowners in communities across Florida including Sarasota, Bradenton, Tampa, Orlando and Naples.
Posted in: Troubleshooting