When your air conditioner starts spewing unusual or unappealing smells, it is important to take notice because it could be a sign of a major problem. Disregarding unpleasant smells coming from your cooling system can lead to additional damage to your air conditioning or even pose a risk to your health and safety.

Depending on what you’re smelling, the root of the problem could be bacteria or fungus in the system. In other cases, it could also indicate something mechanically wrong with the air conditioner. Some smells are even indicative of a harmful situation, like a natural gas leak.

At Redhawk Heating & Air Conditioning, we are skilled at diagnosing and fixing these type of problems. If you smell something weird coming from your AC, you can bet that our team of qualified specialists has smelled it, too—and fixed it! We’ve earned a reputation as the first call for air conditioning repair in Odessa.

What does a specific odor wafting from your AC mean? Here are some frequent air conditioner odors and what they could mean:

Your AC Smells Like Feet

If your air conditioner smells like feet, it can be because of a buildup of bacteria or fungus inside of it. When moisture builds inside the unit, it can produce an environment that is favorable to the spread of bacteria and fungus. This can cause a bad odor that is often described as smelling like feet.

Another possible reason for the stench of dirty feet may be a dirty air filter. When the air filter becomes choked with dirt, dust and other contaminants, it can result in low air quality and a musty smell that resembles feet.

To correct this issue, 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 regularly to ensure good air quality and protect against the formation of bacteria and fungus.

Your AC Smells Like Rotten Eggs

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

A natural gas leak can be very dangerous and requires immediate attention. If you suspect a gas leak, turn off your air conditioning system, immediately open windows and doors to air out the area, evacuate the building and call your gas company or emergency services immediately.

Your AC Smells Like Mildew

If your cooling system smells like mildew, it might be due to a accumulation of moisture inside the unit. When moisture collects inside the air conditioning system, it can cultivate the growth of mold and mildew. This can cause a musty odor that resembles mildew.

Another possible cause of the smell may be a clogged air filter. If the air filter becomes clogged, it can cause poor air quality and a musty smell that has a resemblance to mildew.

Annual air conditioning maintenance from Redhawk Heating & Air Conditioning can help prevent both of these issues, because a good cleaning, inspection and filter change is a very good way to keep your system working at its best!

The Air Conditioning Smells Like Urine

One of the most unpleasant scenarios is when your AC smells like urine.

If your air conditioner smells like urine, it could be traced back to a number of things. One potential cause is a collection of bacteria or mold in the your HVAC. This can happen in the event that moisture accumulates in the system and creates a moist environment that favorable for bacterial growth. The bacteria can produce a foul odor that it similar to urine.

Another feasible cause of the smell 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 accumulate inside the unit. This can produce 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, a possible cause could be an electrical issue with the unit. After some time, the electrical parts in the air conditioning system can wear out or bust, which can produce a burning smell that resembles plastic.

Another possible cause of the smell could be a foreign object stuck in the the air conditioner. If something foreign gets stuck in the air conditioning system, it can get hot and cause a smell similar to burning plastic.

If you notice something that smells like burning plastic coming from your cooling system, it’s worthwhile to call a professional right away.

The Air Conditioning Smells Like Gas

If your AC smells like gas, it could be due to a natural gas leak in the unit or in the surrounding area. Natural gas has a distinctive aroma, often described as smelling of rotten eggs or sulfur. That’s because an odor is incorporated into natural gas to make it easily detectable.

As we said before, a natural gas leak can be VERY harmful and calls for immediate attention. If you suspect a gas leak, turn off your air conditioning system, open windows and doors to air out the home, leave the building and contact your gas company or emergency services right away.

The Air Conditioning Smells Like Fish

When your AC smell like fish, it could be due to a build-up of bacteria or mold in the unit. Moisture produces an environment that promotes the growth of bacteria and mold. This can cause a disgusting odor that is often described as smelling like fish or, as mentioned earlier, it also can result in a smell like dirty feet.

Another plausible explanation for the smell could be a dead animal or other biological material trapped within the air conditioning system. This often is possible if an animal such as a mouse or bird is trapped inside the unit and dies.

To correct the issue, it’s important to have a professional inspect and clean your air conditioning system. They will be able to identify the source of the smell and take the proper steps to remove any contaminants and stop the problem from recurring.

The Air Conditioning Smells Like Vinegar

There could be numerous reasons a home’s air conditioning system smells like vinegar. One possible cause of the smell could be a dirty air filter. Another potential cause of the smell might be a refrigerant leak. When the refrigerant leaks, it can create a chemical odor that is similar to vinegar.

To fix the issue, it’s beneficial to have a skilled tech inspect and clean your air conditioning.  If the odor persists after the cleaning and exchanging 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, they can tell you if your air conditioning needs to be replaced.

If you are planning to upgrade, Redhawk Heating & Air Conditioning can help select the correct unit to fit your home’s needs. We offer reliable, expert air conditioner installation in Odessa.

Your AC Smells Like Chemicals

If the smell of chemicals is coming out of your air conditioning equipment, it could be due to a refrigerant leak. If the refrigerant leaks, it can create a chemical odor that some people describe as smelling like chemicals or paint thinner, vinegar or acetone.

Another possible reason for the smell could be a problem with the electrical wiring or components inside the air conditioning system. This can result in a burning smell that it similar to chemicals or burning plastic.

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

Weird Smells Coming from Your Cooling? Contact the Experts at Redhawk Heating & Air Conditioning

If your air conditioner stinks and you aren’t able to fix it simply on your own, reach out to the cooling professionals at Redhawk Heating & Air Conditioning. We have plenty of experience working with a wide variety of AC systems. Our crew has fixed a multitude of air conditioning troubles over the years—including strange smells. Call us today for quality AC repair in Odessa!