Woman wondering why her AC is acting up

Why does it smell bad when my air conditioner runs?

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

Where do the smells come from?

Begin with 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 reach out to 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 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 gather. 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 happen with the coils, drain pain, air ducts or even your filter. However, ongoing maintenance can help decrease this buildup and reduce the probability that an unfriendly smell starts spreading throughout your space.

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 home.

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 remove the animal.

What can I do?

Assess your filter. This is a common culprit for air conditioner odors. If it’s been a long time since you’ve swapped your air filter, go ahead and replace it with a brand new one. We typically suggest changing your filter every two to three months. But it’s also important to keep in mind other elements 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 making a difference, it’s probably time to contact a professional. Especially if it’s been an long period of time since your last air conditioning examination. The pros can review the situation to see if a thorough cleaning can do the job. You may also want to consider having your air ducts cleaned. Professional duct cleaners can take a look to see if your indoor air quality would improve from a proper cleaning.

If you have anxiety about the odors in your home, McFadden Heating & Cooling can help you assess the situation and discuss possible solutions. You should be able to enjoy your cool indoor space throughout 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 1-866-781-0111.

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