When your air conditioner starts putting out odd or funky odors, it is necessary to take notice because it could be a sign of a major problem. Dismissing unpleasant smells coming from your cooling system could lead to further damage to your AC or even pose a risk to your health and safety.

Depending on the cause of the odor, the cause may be bacteria or fungus in the system. Other times, it could also sign something mechanically wrong with the air conditioner. Some smells are a sign of an unsafe scenario, like a natural gas leak.

At Redhawk Heating & Air Conditioning, we are experienced at getting to the root cause of stinky smells. If you smell something peculiar coming from your cooling system, there’s a good chance our team of talented pros 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 out of your air conditioning mean? Here are a few frequent air conditioner aromas and what they might mean:

Your AC Smells Like Feet

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

Another possible reason for an odor of stinky feet may be a dirty air filter. If an air filter becomes choked with dirt, dust and other debris, it can cause poor air quality and a musty smell that bears a resemblance to feet.

To fix this problem, it’s important to have a professional inspect and clean your air conditioning system, including the evaporator coil, drain pan and condensate drain line. It’s also important to exchange the air filter on a regular basis to promote good air quality and restrict the growth of bacteria and fungus.

The Air Conditioning Smells Like Rotten Eggs

If your stinks like rotten eggs, it might be the result of a natural gas leak in the unit or in the surrounding area. Natural gas has a recognizable odor, often described as smelling like rotten eggs or sulfur, which is added to it to make it easily detectable.

A natural gas leak is a situation that is extremely 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, evacuate the building and call your gas company or emergency services immediately.

The Air Conditioning Smells Like Mildew

If your AC emits a smell like mildew, it could be due to a collection of moisture inside the unit. When moisture accumulates inside an air conditioner, it can promote the growth of mold and mildew. This can cause a musty odor that it similar to mildew.

Another possible reason for the smell may be a soiled air filter. If the air filter becomes clogged, it can result in poor air quality and a musty smell that is similar to mildew.

Routine 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 running at its best!

The Air Conditioning Smells Like Urine

One of the most undesirable situations is when your AC smells like urine.

If your air conditioner stinks like urine, it could be traced back to a number of things. One possible cause is a buildup of bacteria or mold in the your cooling system. This can happen if moisture accumulates in the system and creates a wet environment that favorable for bacterial growth. The bacteria can emit a foul odor that is like urine.

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

My Air Conditioner Smells Like Burning Plastic

If your air conditioner smells like burning plastic, a possible cause could be an electrical issue with the unit. After a while, the electrical components in the air conditioning system can wear out or bust, which can make a burning smell that resembles plastic.

Another possible root cause of the smell could be a foreign object lodged in the unit. If something foreign gets stuck in the air conditioning system, it can heat up and result in a smell that reminds people of burning plastic.

If you think you smell burning plastic coming from your cooling system, it’s important to phone a professional right away.

The Air Conditioning Smells Like Gas

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

As stated previously, a natural gas leak can be VERY hazardous and requires immediate attention. Should 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 call your gas company or emergency services right away.

My Air Conditioner Smells Like Fish

If your air conditioner smell like fish, this could be a sign of 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 plausible explanation for the smell could be a dead animal or other biological material caught 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 worthwhile to have a professional examine and clean your air conditioning system. They should be able to find the source of the smell and take the appropriate steps to remove any contaminants and keep the problem from recurring.

The Air Conditioning Smells Like Vinegar

There could be numerous reasons an AC smells like vinegar. One possible cause might be a plugged air filter. One other likely cause of the smell might be a refrigerant leak. If the refrigerant leaks, it can make a chemical odor that resembles vinegar.

To fix the issue, it’s essential to have a skilled mechanic look at and clean your air conditioning.  If the odor continues after the cleaning and exchanging the air filter, it’s best to reach back out to a professional to find and repair any hidden issues with your air conditioning. Or, the tech can tell you if your air conditioning needs to be replaced.

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

Your AC Smells Like Chemicals

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

One other possible cause of the smell could be an issue with the electrical wiring or components inside the air conditioning system. This can produce a burning smell that it similar to chemicals or burning plastic.

If you think your system has a refrigerant leak or an electrical concern, it’s important to shut off your air conditioning system right away and contact a professional to inspect and repair the unit. Refrigerant leaks can be hazardous and may require immediate attention to protect against injury or damage to your residence.

Strange Smell Coming from Your Cooling? Call the Pros at Redhawk Heating & Air Conditioning

If your air conditioner smells nasty and you aren’t able to fix it easily on your own, contact the cooling professionals at Redhawk Heating & Air Conditioning. We have lots of experience working with a wide variety of HVAC systems. Our crew has fixed countless air conditioning problems over the years—including funky smells. Call us today for quality AC repair in Odessa!