Air Conditioning Odors: Causes and Prevention

Sometimes we get service calls because of unpleasant smells emanating from air conditioning systems, which is definitely something it’s not supposed to do. If your AC does the same thing when you turn it on, don’t rush out and buy a replacement just yet. This is a relatively minor problem that can be fixed with an experienced HVAC technician.

Air Conditioning Odors: Causes and PreventionWhat Causes Air Conditioning Smells?

One of the most common causes of air conditioning smells is mold and mildew. The smell is more noticeable in dedicated air conditioning units (as opposed to centralized HVAC units) that haven’t been turned on for a few months. A particularly strong smell indicates a higher concentration of mold and mildew that need to be cleaned out before it can be used. Otherwise, the spores can spread to the rest of the house, which can trigger allergies and respiratory problems.

Other sources of air conditioning odors are dirty filters, which, fortunately, is an easy problem. Simply clean the filters out or replace them if they are the disposable kind. It is also possible that the source of the odor is coming from somewhere within the ductwork. If you have a centralized HVAC system, the smell will be evident throughout the house. In which case, you will need to have your ductwork professionally cleaned.

Preventing Bad Odors

Dealing with bad odors in the air conditioner can be incredibly inconvenient, especially if it happens in the middle of summer. You’d have to do without air conditioning until the issue is fixed, and of course, you’d have to spend extra in case the root cause requires an appointment with a technician.

In addition to sticking to your scheduled maintenance as prescribed by your trusted HVAC technician, regularly clean or replace your filters once a year, check the ductwork for leaks, and ensure that the protective grills are in place. Bacteria tends to thrive in moist environments, so keeping indoor humidity within ideal levels can also help prevent odors.

Eliminate Bad HVAC Odors With Sierra Air, Inc.

Need help with air conditioner odors? Call Sierra Air today at (775) 800-5500. You can also or fill out our contact form to schedule an appointment.