When your air conditioner starts putting out strange or unappealing aromas, it is a good idea to take notice because it could be a sign of a significant problem. Ignoring unpleasant smells coming from your air conditioning may lead to further damage to your HVAC system or even pose a risk to your health and safety.

Depending on the smell, the culprit may be bacteria or fungus in the system. Other times, it could also sign something mechanically wrong with the AC. Some smells are a warning of a hazardous scenario, including a natural gas leak.

At Premium Air Services LLC, we are experienced at getting to the root cause of stinky smells. If you smell something peculiar coming from your AC, you can bet that our team of talented specialists has smelled it, too—and fixed it! We’ve earned our reputation as the premier company for air conditioning repair in Tomball.

What does a particular smell coming out of your AC mean? Here are some common air conditioner smells and what they could mean:

Your AC Smells Like Feet

If your air conditioner smells like feet, it may be caused by a buildup of bacteria or fungus inside of it. When moisture builds inside the unit, it can create an environment that is favorable to the growth of bacteria and fungus. This can result in a foul odor that is often described as smelling like dirty feet.

Another possible cause of an odor of stinky feet might be a dirty air filter. If an air filter becomes filled with dirt, dust and other particles, it can result in poor air quality and a musty smell that resembles feet.

To solve this unpleasant situation, it’s important to have an experienced specialist inspect and clean your air conditioning system, including the evaporator coil, drain pan and condensate drain line. It’s also important to change the air filter on a regular basis to promote good air quality and restrict the formation of bacteria and fungus.

My Air Conditioner Smells Like Rotten Eggs

If your reeks of rotten eggs, it could be caused by a natural gas leak in the unit or in the surrounding area. Natural gas has a distinctive odor, often described as smelling like rotten eggs or sulfur, that is added to it to make it easily detectable.

A natural gas leak is a situation that is extraordinarily dangerous and requires immediate attention. If you suspect a gas leak, turn off your air conditioning system, immediately open windows and doors to allow gas to escape the area, get everyone out of the building and call your gas company or emergency services at once.

My Air Conditioner Smells Like Mildew

If your air conditioner is giving off an odor like mildew, it may be due to a buildup of moisture inside the unit. When moisture collects inside an air conditioner, it can promote the growth of mold and mildew. This can cause a musty stench that resembles mildew.

Another possible reason for the smell could be a soiled air filter. When the air filter becomes clogged, it can cause poor air quality and a musty smell that resembles mildew.

Routine air conditioning maintenance from Premium Air Services LLC can help avoid both of these situations, because a good cleaning, inspection and filter change is a great way to keep your system operating at its best!

My Air Conditioner Smells Like Urine

One of the most distressing situations is when the air coming out of your HVAC system smells like urine.

If your air conditioning equipment stinks like urine, it could could be caused by multiple factors. One potential cause is a buildup of bacteria or mold in the your HVAC. This can happen in the event that moisture accumulates in the system and creates a wet environment that favorable for bacterial growth. The bacteria can create a foul odor that resembles urine.

Another potential cause of the scent of urine could be a blocked drain line. The condensation that forms inside the air conditioning unit needs to drain away correctly, but if the drain line becomes clogged with debris, it can cause water to back up and build up inside the unit. This can generate a musty smell that is sometimes described as smelling of urine.

The Air Conditioning Smells Like Burning Plastic

If your air conditioning unit smells like burning plastic, it might be because of an electrical issue with the unit. After a while, the electrical elements in the air conditioning system can wear out or malfunction, which can make a burning smell that resembles plastic.

Another possible cause of the smell could be a foreign object that somehow got in the HVAC system. If something foreign gets caught in the air conditioning system, it can become hot and result in a smell that reminds people of burning plastic.

If you notice something that smells like burning plastic coming from your AC unit, it’s worthwhile to contact a professional right away.

Your AC Smells Like Gas

If your air conditioning smells like gas, there could be a natural gas leak in the unit or in another part of your home. Natural gas has a distinctive aroma, often described as smelling of rotten eggs or sulfur. That’s because a smell is put into natural gas to make it easily detectable.

As mentioned previously, a natural gas leak can be VERY harmful and requires immediate attention. When you suspect a gas leak, turn off your air conditioning system, open windows and doors to air out the home, get everyone out of the building and phone your gas company or emergency services straight away.

The Air Conditioning Smells Like Fish

If your AC smell like fish, you may have a situation where there’s a build-up of bacteria or mold in the unit. Moisture causes an environment that is conducive to the growth of bacteria and mold. This can cause a strong odor that can be described as smelling like fish or, as mentioned earlier, it also can result in a smell like dirty feet.

Another possible cause of the smell could be a dead animal or other biological material trapped in the air conditioning system. This often can happen if an animal such as a mouse or bird becomes trapped inside the unit and dies.

To fix the issue, it’s worthwhile to have a professional check out and clean your HVAC system. They will be able to find the source of the smell and take the correct steps to remove any contaminants and keep the problem from recurring.

The Air Conditioning Smells Like Vinegar

There could be numerous reasons an air conditioning system smells like vinegar. One possible cause of the smell could be a clogged air filter. A second potential cause of the smell may be a refrigerant leak. If the refrigerant leaks, it can make a chemical odor that is similar to vinegar.

To fix the issue, it’s important to have a skilled tech inspect and clean your air conditioning.  If the odor continues after the cleaning and replacing of the air filter, it’s best to reach back out to a professional to identify and repair any underlying issues with your air conditioning. Or, the mechanic can tell you if your air conditioning ought to be replaced.

If you are wanting to upgrade, Premium Air Services LLC can help locate the correct unit to fit your home’s needs. We deliver dependable, skilled air conditioner installation in Tomball.

My Air Conditioner Smells Like Chemicals

If the smell of chemicals is emitting out of your air conditioning equipment, it could be caused by a refrigerant leak. If the refrigerant leaks, it can create a chemical aroma that is often described as smelling like chemicals or paint thinner, vinegar or acetone.

An additional possible reason for the smell could be problems with the electrical wiring or parts inside the air conditioning system. This can cause a burning smell that is like chemicals or burning plastic.

If you believe there is a refrigerant leak or an electrical problem, it’s important to shut off your air conditioning system as soon as possible and contact a professional to inspect and repair the unit. Refrigerant leaks can be harmful and may require immediate attention to prevent injury or damage to your residence.

A Nasty Odor Coming from Your AC? Contact the Experts at Premium Air Services LLC

If your air conditioner reeks and you aren’t able to fix it easily on your own, call the cooling specialists at Premium Air Services LLC. We have plenty of experience working with a wide variety of air conditioning systems. Our crew has fixed countless air conditioning troubles through the years—including weird smells. Call us today for quality AC repair in Tomball!