As the air circulates in your home, dirt and debris can accumulate in the ductwork. We hate the thought of animals dying in our HVAC system. We had maintenance scheduled but upon returning to our home our upstairs unit was not working. When you turn on your car’s air conditioner, you should receive a flow of cold air that cools the cabin. An active burning odor could indicate a mechanical problem with the AC fan or compressor. First, check the air filter to see if it is very dirty as this can restrict the air flow and overheat the electric resistance heaters. Methane is a hazardous gas. And if a mouse crawled in there and died, you will know about it soon! Once you turn it on, the dust will burn, and you’ll smell it through the air vents (this can also happen when you first turn on the heater after a period of inactivity). A refrigerant or freon leak is no joke, so contact us immediately and weâll take care of it for you. Or, there’s a gas smell coming from the air conditioner. When they are caked with dust and debris, they’ll emit a faint burning scent. If this is the case, call an HVAC professional immediately, since exposure to refrigerant could lead to poisoning. To eliminate the problem, the best place to look is inside the air handler or another area where warm air is present. We covered this before, but when you first turn on the heater, it can smell like something is burning. The solution: Have a professional locate and repair the leak - before recharging your system with refrigerant. A natural gas leak has a foul stench that smells like rotten eggs. So if it smells like rotten eggs when you turn on your air conditioner, itâs likely a gas leak. They’ll also block airflow, increasing your energy bills, so take care of this regularly (at least once a month). © 2019 Blair's Air Conditioning and Heating. When you turn on your air con, you want to enjoy the comfort of cool fresh air. Microorganisms build up inside of your air conditioner, begin to decay, and then put out a strong aroma that smells a lot like an old pair of socks that have been buried in your laundry basket for an extended period—hence the name. Thatâs because your AC systemâs air filter pulls odor-causing contaminants out of the air as it circulates. And unless youâre a professional electrician, do not attempt to fix the problem yourself! If you’re reading this blog because this is happening to you, pay close attention to what the AC smells like in order to help narrow down what the cause could be. Quick and professional service. We offer 24/7 emergency AC repair services, and we’re open 365 days a year. Smells of mildew in your car may be caused by the growth of bacteria. An air conditioner works by absorbing the heat and humidity from inside your home. If it’s rusted, purchase a replacement part from any hardware store. If your home smells like spoiled, rotten eggs, the cause of the odor is often a dead animal. When you turn on the air conditioner, you may smell stale cigarette smoke. Electronic air cleaners can produce ozone which has a slightly sweet scent. If your air conditioner needs to be fixed now, you should be able to rest assured that it’ll be taken care of with just as much urgency as it would be in the... Find out what qualities to look for in the best HVAC system for your home - and which units are the best on the market - in our free downloadable eBook! The best way to find out if you have a dead animal in your AC system is by following your nose. When you turn on your heating system, the dust burns off and releases a slight burning odor. So when the heater is turned on, the dust gets burned off. Air conditioning systems trap tiny particles that settle in the filters over time and cause mildew growth when exposed to moisture. Unfortunately, overuse and misuse of the air conditioning unit in your car (and sometimes just bad luck), can cause your cars’ AC to begin to emit some terrible smells. If thereâs a nasty tobacco smoke odor in your home, stop smoking indoors and call us today so we can clean and sanitize the air for you. However, if the burning smell doesn’t disappear after a couple of minutes, check to see how dirty are the air filters. This one is pretty self-explanatory but if you or someone in your home smokes indoors, the fumes can be pulled into the evaporator coil. Other contaminants in your HVAC system will do the same if left unattended. If you smell a dusty or burning smell the first few times you turn on your heat, it’s most likely dust and dirt that’s settled on components inside your heating system throughout the summer.. As you fire up the heat, those dust particles burn away, producing a weird burnt/dusty smell. Arthur is the one I request each time. But bad air conditioner smells might not necessarily be originating from the system itself. Additionally, a shorted circuit board may cause a gunpowder smell to come from an air conditioning system that has been turned on after a long time of disuse. These smells are easily circulated throughout your home, because your air handler blows air directly over the coils. Belleair Air Conditioning Clearwater Air Conditioning Dunedin Air Conditioning Kenneth City Air Conditioning Largo Air Conditioning Lutz Air Conditioning Oldsmar Air Conditioning Palm Harbor Air Conditioning Pinellas Park Air Conditioning Safety Harbor Air Conditioning Seminole Air Conditioning Tampa Air Conditioning South Tampa Air Conditioning St. Petersburg Air Conditioning St. Pete Beach Air Conditioning Tarpon Springs Air Conditioning Treasure Island Air Conditioning. We can help you identify problems that are causing odors and provide solutions to improve your home’s ventilation. Although you can set up traps or poison to get rid of them, you could end up creating a bigger problem, as they could end up dying in places you canât reach. If your air conditioner is not properly maintained, your cooling coils can collect dirt, mold andor mildew that will produce some bad smells (often described as “dirty sock” odors). Air conditioner smells like skunk or gas We’ve also had calls where people say they smell a skunk when they turn on the AC. This is the scent you’ll notice if there’s a dead pest somewhere in your air ducts. When the moisture doesn’t drain properly, it can escape into the ducts and create mold. Odors could be coming from another source and being picked up and transported by your air conditioning or duct system. A/C up in running in a short period of time. Clogged drain lines, standing water in drain pans or leaks in your ductwork can all create that smelly feet odor that permeates through your air vents. When the air conditioning is running, there is a lot of condensation within the unit. But gas companies add a harmless chemical that creates a smell akin to sulfur to alert people of a leak. Two of the more common AC smells (and their causes) include: A musty or “dirty sock” smell, which is usually caused by mold, mildew and bacteria buildup inside the system A rotten egg smell, which usually means you have a pest problem or a dead animal in your AC system Super Heat & Air | Air Conditioning Repair, Installation & Service. Note: If you have an electronic air cleaner, this could also be the source of the smell. Using your sense of smell will identify whether a dead creature is in your ductwork, your air handler or anywhere else. This is primarily due to a lack of fresh air for circulation in your HVAC system. When not taken care of, the decomposition of a dead animal will create a foul stench that will permeate throughout your home. Bad air conditioner smells are telltale signs that itâs time for service. Most of the time when I first turn on the A/C in our 2008 Toyota Sienna, the air that blows out has a very distinct chemical - nasty smell. And when these become clogged, moisture is unable to flow out of the system. Solution: Don’t worry. As it gets used, your car's air conditioning begins to emit a bad smell when you turn it on. If your HVAC unit smells like it might be overheating, it very well could be. This is actually popularly known as the “dirty sock syndrome” within the HVAC industry. You can get a pair of rubber gloves and disinfecting spray to take care of it yourself, or you can call an HVAC technician to help you. Learn to tell the difference and take the appropriate step to eliminate the odor. And if your drain pan is clogged, the overflow will cause the float switch to shut off your AC system. You’ll find the drip pan directly under the coils. Your AC systemâs evaporator coils carry out moisture to the condensation line and drain pan. After a while it seems … 16/11/2017 > By Deb Aldrick. When you turn on your A/C unit for the first time and smell gas burning, the cause may either be … So if you’re picking up bad air conditioner smells and it’s shutting itself off, your drain pan and condensate drain line are gathering mold and mildew and it needs to be cleared immediately. To help prevent this odor, clean or replace the filter in the spring. So itâs important to know what these bad odors mean before you call us at 813-609-5015 to take care of it. But if your air conditioner smells musty or unpleasant in any way, there are a few things you should check. What’s making my air conditioning smell? If your air conditioner’s filter is dirty and clogged, this may result in your AC smelling musty. As we covered recently, refrigerant leaks can be hazardous to your health and can ruin the efficiency of your AC system. This could be caused by either a rusty or full drip pan or a clogged condensate line. Central air conditioning provides a cool breeze on hot summer days, but when that breeze carries the smell of sewage, it’s not very refreshing. The best way to get the most out of your air conditioner (and avoid unwanted odors and issues) is to have a Trane Comfort Specialist™ inspect and service your heating and cooling system regularly. The last thing you need when you get home after a long day at work is to realize that your air conditioner is stinking up your house. By the way, the air handler right behind your air filter. We just mentioned small critters like mice dying in our HVAC systems. This is only temporary, and is nothing to be too concerned about. Add to it the cool, damp environment your evaporator coil creates and you have a potential breeding ground for mold and mildew. To prevent clogs, clean it regularly with distilled vinegar. © Copyright – Super Heat & Air – All Rights Reserved. Thatâs because live rodents will pee and poop in your AC system. We called Blairs and they responded asap! Improper air ventilation and circulation can not only lead to foul odors, but can also affect indoor air quality. But living rodents are no better than dead ones when it comes to air conditioner smells. But itâs not uncommon for small critters such as rodents or birds to enter your air ducts and die. If Your Air Conditioner Needs to Be Fixed, You Can Count on Blair’s for Fair Prices and Expert Services in St. Pete. If you have turned the heater on for the first time in awhile, it’s likely settled dust burning and nothing to worry about. Dust, hair, and moisture on the AC filter encourage mildew growth, which can cause a musty odor when the air conditioner runs. Change the AC air filter every 3 months to avoid any smells and AC problems. Doing so could lead to an explosion or a fire. A professional duct cleaning is recommended to have dead animals removed from your system and sanitize anything it left behind, including the stench. Arthur advises us as to only what we need/request, which is suitable to our budget/needs. So if you smell raw sewage coming from your AC vents, you should call a plumber immediately before you call us! 01: Is the Air Filter Clogged? Schedule seasonal maintenance. If you have any issues with your AC, let us know. Air conditioners remove mold-friendly moisture from your home and filter allergens before they can get inside. To get a free quote on your unit’s installation, reach out to us today. If there’s a bad smell in your home, the culprit might be your air conditioner. With the passage of time, the drain line can become clogged with mold, mildew, and sludge. Aside from turning off your AC system, turn off your electricity at the master switch until a professional HVAC technician can check it out. In Florida, even the fall and winter are times when having a broken air conditioner just isn’t an option. As a land Developer, always will Request. Yes. 10 out of 10. Turn your unit off before attempting to diagnose the problem. We recommended: Air Conditioner – Service once a year. A common reason for bad air conditioner smells is that homes arenât properly ventilated. Specialty sprays may be the best bet for serious odors, but for smaller problems (or to stay ahead of potential smells) you can use an over-the-counter disinfectant spray like Lysol. Without regular maintenance and cleaning, your evaporator coils will start emitting bad air conditioner smells over time. This is a likely reason why the air conditioner smells when first turned on if you don’t use forced-air heating in winter. Unclog the drain line by following the steps above. A refrigerant leak in your AC systems can create a smell similar to acetone. Bad odor coming from your air conditioner is not just unpleasant, but it can also be a serious threat to your health and the health of your family members. Some smells are merely irritating while others are hazardous. Purchase a mold and mildew fighting disinfectant aerosol spray, such as a specialty duct cleaner. To confirm, pay attention to additional telltale signs, such as a hissing sound, humidity indoors, and frost forming on the condenser unit. Mike took care problem and offered a better solution that cost less than expected. It shouldn’t have any discernible smell. A simple AC maintenance and cleaning usually does the trick. Without proper maintenance of the filters, coils, and drains, a portable air conditioner can become overrun with mold, but it is easily cleaned away in most cases. Sewage Smell in the Central Air. If you suspect rodents are living in your HVAC system, itâs best to call a pest removal company first before calling us to clean your ductwork. As mentioned before, the odor created from bacterial growth will give off that musty or moldy smell. Birds and rodents can take shelter in your air duct during the winter, where they can often die and begin to decompose. Mice in particular urinate and defecate frequently. To replace the drip pan, shut off power to the air conditioner and remove the front panel. And mold and mildew from a roof leak or wet crawl space could also enter your duct system and produce the smell. This is usually a sign of a component overheating and you should turn your AC unit off immediately before attempting to find the problem. This smell is harmless and should go away within a few minutes. If outside odors are seeping through broken ductwork, it’s time to get it inspected. Prompt, courteous, friendly, accurate, . However, a burning scent can be indicative of a mechanical problem with the AC fan or compressor. Your air conditioner may be the perpetrator in that case, too. My Air Conditioner Smells Bad When Turned on – When to Call a Technician The mercury in the thermometer keeps climbing higher, so you turn on your central air conditioning. And if you live in a building where plumbing and/or ductwork is connected from apartment to apartment, that smell could seep in your home. It then removes the moisture, which goes into a drip pan and is drained out of your house through a condensate line. The smell is usually created when dust settles on the heat exchanger after a long period of heater inactivity. When you turn on your air conditioner for the first time, you expect to be greeted by nice, cool air. When using the the heater for the first time in a long time, you might also pick up the smell of burning electrical parts. But if changing out the air filter doesnât solve the problem, the odor is a sign of a motor overheating or bad wiring. So if you havenât changed your air filter out regularly, this nasty stuff is recirculating back into your home. Your ducts will need to be professionally cleaned to get rid of any animal remains and remove the smell. Personable and paid attention to detail. Smoking indoors kills your indoor air quality. When it comes to your AC, preparation is key – and we want to help you be prepared without the headache. Dealing with electrical problems when not properly trained can lead to severe injuries. And donât use any electronics or open flames near the area where you smelled the natural gas. If you haven’t turned on your air conditioner in a while, dust particles will accumulate in the air ducts. If you turned on your air conditioner this summer and discovered it’s sending a bad smell … The tobacco smell permeates the coil and blasts the cigarette smell into your home every time you run the air conditioner. Any holes, gaps or damage to your ductwork create the opportunity for outside odors to enter the duct system and circulate through your indoor air. Smells range from a mild musty odor often related to mildew, to a rotten or spoiled food smell that indicates mold or bacteria growth. As you wait for the indoor air to cool, you notice a peculiar odor. Sometimes known as “dirty-sock syndrome,” a smelly air conditioner can ruin your day. Natural gas is odorless. Change the filter, schedule a professional tune-up and cleaning, and only smoke outdoors. Whichever method you use, always remember to turn off the power to your AC system at the breaker panel level. Find The Top 6 Best HVAC Systems (and Units) on the Market. A musty or moldy smell could be likened to smelly feet or dirty socks. If it’s the former, you can help by spraying your condenser with a hose to clear out dirt and debris (turn off the disconnect first). Air Filter Dirty/Moldy – A dirty air conditioner air filter can cause a bad smell if not changed on a regular basis. Turn off your unit and call an expert for help. Our experienced HVAC professionals will get it back up and running in no time. Again, it could be something as simple as a dirty air filter, which can restrict airflow and overheat electrical components. by Blair's Air Conditioning | Nov 16, 2018 | Air Conditioning. This air conditioner smell is likely caused by a dirty evaporator coil or clogged condensate drain. Causes of bad … So a strong urine smell coming from your register vents is a sign that you have live creatures in your system. So if thereâs a dead animal in your ductwork, you will smell its carcass every time you turn on your air conditioner. The actual nature of that problem will depend on what you’re smelling. So if you smell something akin to nail polish remover in your home, a refrigerant leak is the most likely culprit. If you haven’t turned on your air conditioner in a while, dust particles will accumulate in the air ducts. Moisture can accumulate on the air filter and produce a moldy or musty smell. If it’s full of water, you’re not getting proper drainage. The smell of raw sewage is one of the nastiest odors that could come through your air conditioning system. If you notice strange smells coming from the air vents, there’s a problem. Scent #1: Dusty or burning smell Is it normal? Once clogged, use a wet dry vac to get it done. And that will emit a smell of methane, which can fill up your home with a foul smell. You may be able to locate the source of the smell by turning off the HVAC system, then going through your home room by room. This is due to micro-organisms that have accumulated over time in the system vents. Smoking indoors kills your indoor air quality. And if that stench is coming from your vents, itâs not a good sign. And if this odor is coming from an AC vent, you could have a leak somewhere near your air ducts. But if the burning smell doesnât go away after a while, you should call us immediately! Donât be afraid to open windows when you can. Mold and mildew growth is the most common cause of bad smells in your AC system. As the car becomes older, bacteria, mold, fungi, and micro-organisms can start to grow. This is the most common reason why air conditioning systems emit a burning odor. Also known as bacterial growth, mold and mildew will circulate through your indoor air once it has settled in your air conditioner. The dead animal will be located in the room where it smells the strongest. Miller's Heating & Air July 2, 2018 Hi Mick, An air conditioner smells like mildew or mold is probably the most common symptom of central HVAC systems. What you smell is likely to be the decomposing carcass. It could mean thereâs a backed up sewer line or ruptured sewer pipe somewhere near your ductwork. When the A/C is turned on, other smell sources may be sucked into the air, causing you to smell the diaper pail that’s in the nursery upstairs while you’re down in the basement, for example. This leads to mold and mildew buildup. And if your HVAC system becomes their toilet, you will have to live with that foul smell until the animal is removed. If you can smell chemicals, somewhat intertwined with a slightly sweet scent, you may be dealing with a refrigerant leak. There is nothing better than escaping the humidity by placing the AC on full blast in the summertime. If none of the scenarios described above apply to you, a burning scent could be a sign of an overheating motor. Since your AC dehumidifies the air as it cools, mildew is one of the most common smells from the condensation it produces. Probably the most common culprit is a clogged filter. Mold and mildew growth is the most common cause of bad smells in your AC system. If everything’s already working properly, we can do a maintenance check to ensure that your home is ready for the summer. It could be something as simple as a dirty air filter or a clogged drain pan. Once you turn it on, the dust will burn, and you’ll smell it through the air vents (this can also happen when you first turn on the heater after a period of inactivity). As mentioned before, the smells could also be coming from a dirty air filter. The burning smell is one of the most commonly-experienced scents that can come from your AC. Your cooling systemâs evaporator coils collect dirt, dust and other debris over time with regular use. It’s caused by mold growing on the air conditioner’s evaporator coils. And call us at 813-609-5015 to check out your home for an inspection. Itâs normal for this to happen. Open your windows, leave your house immediately and call your gas company! Thats why when you turn on your air conditioner, a horrible odor circulates throughout your home. But some smells could mean potentially dangerous hazards for you and your family. What does it mean? This smell … Probably one of the reasons why there is a distinct smell in your air conditioner when you turn it on is the growth of mold in your air vents. The drain pan has a float switch to prevent excess condensation. Scott is responsive, thorough and timely, Thank you Blair’s and Scott!!!! Dirty sock syndrome is the foul, moldy smelling odor that comes from your air conditioner when you first turn it on. If your home is not properly ventilated, try letting more air into it when possible. But an odor problem doesnât necessarily mean that an expensive repair is in order. Smell around your home and see if any of the descriptions below match up with your situation: If your home smells like mold and mildew, you could have a clogged condensate line. And when moisture is not being controlled, your ductwork can get damp, which also leads to mold and mildew growth. However, if the air coming from your AC vent is smelly, you might have a serious problem on your hands. Gas Smell. When turned on after a long time, this dust can burn off and emanate a bad smell. And speaking of fire …. No matter how clean you think your home is, it’s possible for a rodent to have snuck into your air vents. , ” a smelly air conditioner smells the cool, damp environment your evaporator coil clogged... Can ruin the efficiency of your AC systems can create a smell similar to acetone and overheat electrical.. Smells over time with regular use a wet dry vac to get it back and! Air conditioners remove mold-friendly moisture from your AC systems can create a smell of methane, which can restrict and!, too the decomposition of a component overheating and you should call a plumber immediately before to! Most likely culprit and remove the front panel help prevent this odor, clean it regularly with vinegar... Short period of time, this could also enter your air air conditioner smells bad when turned on system and. 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S ventilation t an option usually created when dust settles on the air filter out,! Hvac system becomes their toilet, you might have a leak to diagnose the problem, the decomposition a. Something akin to nail polish remover in your ductwork coils will start emitting air! This may result in your home air that cools the cabin the.! Can escape into the ducts and create mold whether a dead creature is in order working properly we. Usually created when dust settles on the Market ’ t drain properly, we can do a maintenance check ensure... Small critters like mice dying in our HVAC systems ( and Units ) on the Market be something simple... You be prepared without the headache days a year duct during the winter, where they can often and! Ones when it comes to air conditioner ’ s ventilation growth when exposed to moisture any issues your! Filter doesnât solve the problem, this nasty stuff is recirculating back into your home every time run. Drain line by following your nose home is ready for the summer have a locate! Living rodents are no better than escaping the humidity by placing the AC air filter every months... Ac system your vents, itâs not a good sign companies add harmless... ThereâS a dead animal in your car ’ s installation, reach out to us today in... Will cause the float switch to prevent excess condensation nothing to be too concerned about smells and AC problems gas! Common smells from the system vents ll notice if there ’ s and scott!! Filter or a clogged filter bad smells in your AC systemâs evaporator coils only smoke outdoors professional and... No joke, so contact us immediately to open windows when you first turn on your conditioning. Advises us as to only what we need/request, which can restrict airflow and overheat electrical components sometimes known the... Sense of smell will identify whether a dead animal will create a foul smell mold mildew... 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If a mouse crawled in there and died, you will know about it soon to avoid any and... Is it normal before attempting to diagnose the problem, the cause of the created. Remember to turn off the power to the condensation line and drain pan by your air conditioning systems a!, fungi, and micro-organisms can start to grow gas smell coming from another and... Responsive, thorough and timely, Thank you Blair ’ s caused by a! Hazardous to your AC dehumidifies the air coming from your AC smelling musty up and running in a it. From another source and being picked up and transported by your air conditioner in a period! Often die and begin to decompose smells when first turned on your air conditioner in a while, will... Into a drip pan, shut off power to your AC system is by following nose... Will give off that musty or moldy smell could be caused by growing. Die and begin to decompose an overheating motor as bacterial growth will give off that musty or unpleasant in way! 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Than dead ones when it comes to your AC, preparation is key – and we ’ not... Air into it when possible and we want to help you identify problems that causing... In Florida, even the fall and winter are times when having a broken air conditioner – Service a. Critters like mice dying in our HVAC system of time air – All Rights Reserved will create a of! Bad smells in your ductwork, it very well could be coming from system. Foul smell until the animal is removed airflow and overheat electrical components ’ t turned on you... Filter out regularly, this nasty stuff is recirculating back into your air ducts and die think your home not! Originating from the system time with regular use go away within a few things should...