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 notice unpleasant odors coming from your cooling system, it’s more than just annoying. It can greatly influence 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 sign 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. Allow the gas company turn it back on for you. It’s not something you want to mess around with.

If it doesn’t smell like rotten eggs, you have a different issue.

Just like anything in your indoor space, 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. Thankfully, routine maintenance can help avoid 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 tiny creature 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 changed your air filter, 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 factors that would require you to replace it more repeatedly, such as pets in the home or if a family member has allergies or asthma.

If you’ve exchanged the filter and it’s not helping, it’s probably time to call in an expert. Especially if it’s been an long period of time since your last air conditioning inspection. The pros 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 anxiety about the odors in your home, North Mechanical Heating and Cooling can help you assess the situation and discuss possible solutions. You should be able to enjoy your cool indoor space in the warmer summer months, without having to suffer with undesirable odors. You can schedule an appointment with our experts online or give us a shout at 928-263-8570.

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