Woman wondering why her AC is acting up

Why does it smell bad when my air conditioner runs?

The majority of us install air conditioners to help us feel comfortable in our homes. But when you start to observe unpleasant odors coming from your cooling system, it’s more than just bothersome. It can greatly impact your home comfort.

Where do the smells come from?

Start with what the odor smells like. If the odor resembles a rotten egg, this could be a signal of a gas leak. If this is the case, you should open your windows, turn off the gas supply, evacuate the home and call the gas company. Be sure to have the gas company turn it back on for you. It’s not something you want to risk doing on your own.

If it doesn’t smell like rotten eggs, you are likely experiencing a different problem.

Just like anything in your home, if your air conditioner isn’t cleaned well or taken care of, there’s a good chance that dirt and dust will accumulate. And because components of your air conditioner aren’t right in front of you, cleaning them can often go overlooked.

Buildup of mold, dirt and other particles is one of the most request reasons you’ll notice odors with air conditioners. It can happen with the coils, drain pain, air ducts or even your filter. However, ongoing maintenance can help avoid this buildup and reduce the chances that an unfriendly smell starts diffusing throughout your home.

Heat and moisture can contribute to increased mold growth, especially in warmer climates. Not only can mold and mildew create a nasty smell, but it can also negatively impact the quality of air in your house.

It’s also possible that a little critter navigated into your duct system and died. You can turn off your air conditioner and either give our team or pest control a call to come and retrieve the animal.

What can I do?

Analyze your filter. This is a common culprit for air conditioner odors. If it’s been a long time since you’ve changed your air filter, try replacing it with a brand new one. We typically suggest changing your filter every two to three months. But it’s also key to keep in mind other factors that would require you to replace it more frequently, such as pets in the home or if a family member has allergies or asthma.

If you’ve switched the filter and it’s not helping, it’s probably time to contact a professional. Especially if it’s been an lengthy period of time since your last air conditioning examination. Technicians can review the situation to see if a thorough cleaning can do the job. You could consider having your air ducts cleaned. Professional duct cleaners can take a look to see if your indoor air quality would be enhanced from a proper cleaning.

If you have concerns about the odors in your home, Northglenn Heating & Air Conditioning, Inc. can help you review the situation and talk through possible solutions. You should be able to enjoy your cool indoor space during the warmer summer months, without having to suffer with unfavorable odors. You can schedule an appointment with us online or give us a shout at 303-452-4146.

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