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 cool in our homes. But when you start to observe unpleasant odors coming from your cooling system, it’s more than just irritating. It can greatly affect your home comfort.

Where do the smells come from?

Focus on what the odor smells like. If the odor resembles a rotten egg, this could be a indication 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 tackle yourself.

If it doesn’t smell like rotten eggs, you have 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 develop. And because components of your air conditioner aren’t clearly displayed before 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 occur with the coils, drain pain, air ducts or even your filter. However, regular maintenance can help decrease this buildup and reduce the probability that an unfriendly smell starts diffusing throughout your home.

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

It’s also possible that a small animal 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 remove the animal.

What can I do?

Check your filter. This is a common culprit for air conditioner odors. If it’s been a long time since you’ve exchanged your air filter, go ahead and replace it with a brand new one. We typically recommend changing your filter every three months. But it’s also important to keep in mind other elements that would require you to replace it more often, 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 reducing the smell, it’s probably time to reach out for some help. Especially if it’s been an long period of time since your last air conditioning inspection. They can assess 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 benefit from a proper cleaning.

If you have concerns about the odors in your home, Air Alliance Team can help you review the situation and chat about possible solutions. You should be able to enjoy your cool indoor space in the warmer summer months, without having to suffer with unfavorable odors. You can arrange an appointment with our team online or give us a shout at 636-229-1544.

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