As time goes by, moisture (that mixes with dirt on the coils) can result in mildew or mold growth. In most cases, this is indicative of a refrigerant leak. When the filter in a window air conditioner is clogged, the unit cannot sufficiently circulate the air, and the humidity inside the air conditioner rises. We moved in May and just 2 weeks ago while me and my family is eating dinner and watching television a strong smell came from the a/c. If you’re noticing your air conditioner smells bad like sewage, it could be a sign of issues in other aspects of the home. But, it has nothing to do with sweat or working out. For good measure, change the air filters each month. Bins of garbage located under or near an air conditioning unit may cause occasional rotten or even decayed smells. If you haven’t turned on your air conditioner in a while, dust particles will accumulate in the air ducts. If you would like to pinpoint the exact problem, then keep on reading to figure out what you are smelling. 3. The Solution: Ask a professional AC technician to check the evaporator coil for mildew and mold. If you notice that your house smells like your son just put his gym socks into your air conditioner or if your house generally smells musky or like a gymnasium when your air conditioner kicks on, then you could … Refrigerant travels through closed copper coils (think of the coils as the AC’s veins). Now my house smells a bit like chlorine. If you smell sewage when you turn on your A/C unit, your sewer system may have backed up into your house or near your unit, and the smell may come from a ruptured pipe. If your air conditioner smells like paint thinner, formaldehyde or other chemicals, it’s always better being safe than sorry. Why Does My Central Air Conditioner Smell Like Chemicals? The cure is to replace the line, the coil or both. Strange Smells & Your Air Conditioner. When something goes awry, it can cause different odors to come from the AC vents in your home. If your AC has started to emit a chemical smell, then it could have to do with one or more of these issues: – A container of chemicals that are open close to the indoor air-handler. Bad odors that come from the air conditioner can mean different things and some of them are bad. A smell like mildew or mold is probably the most common ailment of HVAC systems. When the moisture doesn’t drain properly, it can escape into the ducts and cause mold. Electronic air cleaners produce ozone that has a subtle sweet scent. Sewage Smell in the Central Air. Changing air filters every 90 days will reduce any deodorant and mechanical problems. When I turn the AC thermostat to the cool setting the air smells moldy and musty. Musty smells are caused due to several factors and can be eliminated with the help of professional cleaning services. Ask a professional AC repairman to find and repair the leak before you recharge the system with more refrigerant. Let us know in the comments what the cause, cure and cost was! The odor comes from sitting water that is not draining properly and thus collects and begins to smell. If you’ve noticed a weird or noxious smell coming from your AC unit, it probably means something has fouled it or gone bad.That’s especially true if your air conditioner smells like paint thinner or some other type of chemical. Or call us for immediate assistance. Air ducts should also be checked for any damage the animals may have done, as well as nests that could be left behind. We will send a professional and experienced AC technician to locate where the chemicals scent is coming from and provide you with the correct method to … Well, if your AC smells like chemicals, you most likely have one of the following problems: A refrigerant leak Mold on your evaporator coils Open containers of chemicals near the indoor air handler And because we understand that a working air conditioner is essential in Florida, we offer 24/7 AC emergency service. Deposits can be deposited on the air filter and can cause the odor of fungi or mustard. Call Today (480) 747-6800 If you notice a musty smell from your air conditioner, it may be caused by a blockage in the drain pipe. If it is a refrigerant leak, professional service will be required. Store the product somewhere else, and the issue should be resolved. Learn more about the safety measures we’re taking to keep our customers and our employees safe. The downside is your air conditioner is stinky. The Latest in Heating, Ventilation & Air Conditioner Systems, car air conditioner smells like chemicals, home air conditioner smells like antifreeze, home air conditioner smells like paint thinner, window air conditioner smells like chemicals, Air Conditioning: The Eco Friendly Alternatives, Maintaining my R-22 Air Conditioner: Is it Worth it? Air conditioning dehumidifies your home. “Dirty Sock Syndrome” is when your air conditioner gives off a foul, moldy or mildew-like smell when you turn it on. We provide services throughout North Central Florida. These coils are structured webs of coils filled with refrigerant that absorb moisture and heat from the air. Smells Like: Burning. Evaporator coils in an indoor AC unit are what cools the air. The first and most likely culprit is that someone has been using chemicals near the unit outside. To confirm, pay attention to additional telltale signs, such as a hissing sound, humidity indoors, and frost forming on the condenser unit. However, some smells, like rotten eggs or gas are more serious. If your air conditioner is producing an odd smell, give our team of HVAC technicians a call by phone at (484) 206-8594 or schedule an appointment online to receive immediate help. 3. Some people refer to this as a urine or burning rubber smell. Also read: We moved into a new house in December and turned on the central air conditioning for the first time last week. If it is a refrigerant leak, professional service will be required. R22 is no longer manufactured, and remaining stocks of it cost up to 10 times more than R410. As the leak becomes larger, you will start noticing a chemical smell (the oil that is combined with refrigerant as a lubricant). The ammonia or musty smell comes from “mycotoxins,” a type of metabolic byproduct of mildew and mold. This is an easy one to solve – unless the chemical smell is coming from flooring. A refrigerant certification is needed to purchase HVAC grade R22 and R410A refrigerant. No hosing required. Also known as bacterial growth, mold and mildew will circulate through your indoor air once it has settled in your air conditioner. If it does, there’s likely some malfunction, and one or more fluids are leaking. A gallon of bleach or white vinegar is $2-$5. Air conditioner smell NEW by: Anonymous ... strong smell like nail polish or some kind of chemical NEW by: Anonymous We have one of them old a/c units that is in our wall. And, it can be dangerous. A gallon of bleach or white vinegar is $2-$5. It could be because there are dirty drain pans, malfunctioning drain lines, or other issues. Check the pan beneath the coil. The coil cost ranges from $200 to $800. A dead … What Causes Air Conditioner Smells? This will NEVER affect our opinion of a product or service! Copyright © 2014-2020, PICKHVAC All Rights Reserved. This could be something electrical in the home overheating and melting its insulating plastic or ­rubber—which could lead to a fire. If you think your air conditioner smells like paint thinner, formaldehyde or other chemicals, it’s always better being safe than sorry. Check your manual or search the model/serial number online to find out how large it is. Ask a professional AC technician to check the evaporator coil for mildew and mold. Cigarette Smoke . The most likely culprit is an appliance, such as a dishwasher, washing machine or an air conditioner. Turn it off, see if it stops, then back on again. If you can smell chemicals, somewhat intertwined with a slightly sweet scent, you may be dealing with a refrigerant leak. Refrigerant is the lifeblood of your air conditioner. The air conditioner started blowing moldy musty air since the beginning of summer. I tried new filters but no luck. Besides the smell, there are other signs that you can note to be sure that it is the refrigerant leak that is guilty of the chemical smell. Your air conditioner uses refrigerant to remove the heat from your home’s warm air. A white vinegar and water or bleach and water mix can be used on the pan. The Smell: An acidic, ammonia, or musty smell. Improved air quality: Not only do central air conditioning systems circulate cool air, they remove air from each room and pass it through a filtering system that traps airborne particles like dust, pet dander, and pollen, thus improving the air quality in your home. For some residents, the longer their air conditioner runs, the more noticeable bad odors become. Air conditioning, particularly central air, is a luxury for some and a necessity to others. Instead, the cause is likely mold or mildew. But gas companies add a harmless chemical that creates a smell akin to sulfur to alert people of a leak. 6. “Dirty Sock Syndrome” is when your air conditioner gives off a foul, moldy or mildew-like smell when you turn it on. A precision air conditioner tune-up can correct some of these issues and increase your system’s overall efficiency. Sewage Smell in the Central Air. The good news is that your new air conditioner or heat pump will be more efficient and cause less damage to the environment. After cleaning the coils, the technician can also check whether the mold has spread into the ductwork. Common odors from air conditioners … Phone: (561) 777-9888. PickHVAC is also a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. What you can do about it: You have the same options – call an air conditioning company or investigate the problem yourself. When your AC is operating smoothly, the refrigerant will travel through enclosed copper coils. So what is the cause of it? About Us | Contact Us | Privacy Policy. If so, you can be quite sure a refrigerant leak is the cause. You have the same options – call an air conditioning company or investigate the problem yourself. Musty Smells & Your Air Conditioner – What You Can Do Posted on May 28, 2018 (February 28, 2020) by hls_admin When you finally kick on your air conditioner for the first time, and revel in the fact that summer is here, the last thing you want to think about is air conditioner maintenance. Your air filter is clogged. If you are noticing that when switched on, your HVAC unit is giving off a slightly chemical smell it can be disconcerting. Let me know if you tried some of these tips and how well did it work for you. Moisture from the air condenses on it, runs down the coil into a pan and then into a drain. Often times, homeowners store chemicals in garages or attics to keep them away from children. Signs this is the problem: AC runs for a long time, but struggles to cool your home; Your entire home gets dusty very quickly; Your home is very humid, even though the air conditioner runs constantly; If your cooling system was a body, the air ducts would be the respiratory system. It is obvious that your AC is leaking refrigerant when: – Your AC struggles to keep your home cool, – You can hear a hissing or bubbling noise that comes from the coils, – Ice has started to build up the evaporator coils or refrigerant lines. Electrical Odors . There is simply no other way to survive the high temperatures during the summer months. Locate the air handler and check if any containers are open and close to the unit. But it can also have an acidic odor or something like ammonia. Note: If you own an electronic air-cleaner, this could also be where the smell is coming from. Mold growth is most likely during a very humid summer. In that case, it is probably not pleasant and also worrisome. Call us Any Time! As air circulates throughout your home, many airborne contaminants have the opportunity to settle within the system; even when your air conditioner is idle over the winter, dust and dirt can collect. Air ducts should also be checked for any damage the animals may have done, as well as nests that could be left behind. There are three main causes of central air conditioning smelling like chemicals: Chemicals near the air handler/furnace A refrigerant leak Mold Or, there’s a gas smell coming from the air conditioner. 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The most likely culprit is an appliance, such as a dishwasher, washing machine or an air conditioner. AC Smells Like Old Cigarettes. Hello everyone, We moved into a new house in the month of October and turned on the central air conditioning for the first time , Now my house smells a bit like chlorine. Although today’s air conditioners are fancier and more efficient, they are still made up of the same basic components developed by the engineer, Willis Carrier, in 1902. However, an unpleasant or musty smell coming from your air conditioner has a direct impact on your mood. No matter the issue with your air conditioner, we can assist you. However, the type of smell can point to different, … The system will also have to be charged with refrigerant once repaired. Some bad smells are more than just unpleasant, they may also be a health hazard or dangerous if ignored.. 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