Why does it smell bad when my air conditioner runs?

July 22, 2019

Many of us install air conditioners to help us feel relaxed in our homes. But when you start to experience unpleasant odors coming from your cooling system, it’s more than just irritating. 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 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. Make sure to let 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 have a different issue.

Just like anything in your house, 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 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. Luckily, regular maintenance can help prevent this buildup and reduce the chances that an unfriendly smell starts dispersing throughout your space.

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

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?

Assess your filter. This is a usual culprit for air conditioner odors. If it’s been a long time since you’ve exchanged your air filter, replace it with a brand new one. We typically advise changing your filter every three months. But it’s also key 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 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 lengthy period of time since your last air conditioning examination. Technicians can assess the situation to see if a thorough cleaning can do the job. You might 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, Paso Robles Heating and Air can help you take a look at 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 unwanted odors. You can schedule an appointment with our experts online or give us a shout at 805-203-8667.