Why Do My Air Ducts Smell Bad?

Mature man examining an outflow air vent grid and duct to see if it needs cleaning. One guy looking into a home air duct to see how clean and healthy it is. (Mature man examining an outflow air vent grid and duct to see if it needs cleaning. One guy l

3 Reasons Why Your Air Ducts Smell Bad

One of the most unpleasant discoveries for any homeowner is finding out that their air ducts smell terrible. While this isn’t something you can necessarily predict, it is a situation that tends to pop up out of nowhere; it will take you completely by surprise. That said, there are a few reasons why you might be encountering that problem in the first place:

1. Mold or Mildew Growth from Frequent Use

Unfortunately, when you run your air conditioner non-stop around the clock, there’s a chance that the moisture from your system won’t drain properly. As a result, this will increase the chance of mold or mildew in your ductwork.

If you smell a musty or moldy smell in your home, contact your HVAC technician right away. Your tech will pinpoint the area where the breeding ground is occurring and clean it up in the proper manner.

2. Pests Have Made Themselves at Home

As horrifying as it sounds, pests may be residing in your home’s ductwork. Specifically, if there is a urine-like smell protruding from your air vents, this can mean that there are mice present in your ducts — yuck!

To get to the bottom of this, shut off your central air conditioner and get in touch with your local pest control company. They’ll have a good sense of where to locate the mice and can remove them. After that, contact your HVAC technician to give your air ducts a thorough cleaning.

3. There are Leaks Present

If you happen to smell something outlandish — such as an odor reminiscent of nail polish remover— this can indicate a refrigerant leak present. Typically, this happens when an older system has not been properly cared for.

To help combat this, you’ll want to schedule an appointment with your HVAC technician and have them conduct a thorough examination of your system from top to bottom. Once the problem has been identified and repaired, make a conscious effort to have your system tuned up annually.

New Jersey Air Conditioning Services You Can Count On

Backed by nearly 40 years of experience, Pro Energy Solutions has been New Jersey’s go-to HVAC company for all heating and air conditioning needs. Call us at (800) 704-7340 or complete our online form to learn more about how our team can help you today!

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