If you’ve ever turned on your AC and been hit with a sharp, sour smell like vinegar, you know it’s not something you can just ignore. That odor isn’t normal, and it’s usually a sign that your system needs some attention. If you’re looking for dependable AC maintenance and repair in Southern Vermont, we can help get rid of that smell and get your home’s air feeling fresh again.

At HB Energy Solutions, we believe your cooling system should keep you comfortable without making you wrinkle your nose. Let’s break down five common reasons why your AC might smell like vinegar—and what you can do about it.