Every time you turn on your AC, do you smell a musty odor coming from your air vents? Inspect all the ducts connected to your heating system so make sure there are no gaps. The good news is that many of these smells can be identified and linked to causes which will make finding and eliminating the smell much easier. While natural gas is naturally odorless, manufacturers are required to add a chemical called mercaptan to give it that distinctive rotten-egg gas smell. Mice urinate and defecate frequently in their lairs, and this smell comes out of your vents when the air conditioner or furnace turns on. An unusual or musty odor is often the first sign of mold in air ducts or in air vents. After it has been deemed safe to renter the home, schedule service with an HVAC technician to make sure there are not electrical or mechanical problems with your air conditioner. Hutchinson HIC Reg. If a critter has died in your HVAC or duct system, the smell will quickly become impossible to ignore. If you have any questions please don't hesitate to give us a call. If your home had renovations between (approx.) Once you’ve done that, turn the car on and the AC to max power. Dirty sock syndrome. Whether your central heating or air conditioning system is running, when you detect any unpleasant smell coming from the air wafting through the vents, you need to have professionals investigate the cause right away. Except, instead of a little bit of an odor that I also remember, even from when I was kid, signaled that first start up of a furnace after summer, what we noticed was a strong sweet smell coming out of our vents. The actual nature of that problem will depend on … To help prevent mildew and moisture problems, fix all water leaks, improve drainage, schedule bi-annual HVAC tune-ups, and frequently replace HVAC filters. Although musty smell is always associated with moisture presence, eliminating it in some cases requires total redesigning of the forced air heating system. Some smells are merely irritating while others are hazardous. We're here to help. Once you are safe, check the heater. There are two common causes which lead to a sulfur-like smell. If dry P-traps aren’t your problem, you may have a backed-up sewer line or ruptured sewer vent pipe. If someone has smoked in the home, the odors could accumulate in the filter and evaporator coil. Read More. Turn on the air conditioning and the recirculate setting. #13VH01747500. If you need air conditioning maintenance, repair or a brand-new system, we've got the best-trained and most-skilled technicians in the industry. This type of odor coming from the air conditioning vents could be a sign of mold, dust or mildew. Question: foul odor coming from in-slab HVAC Ducts - how do we fill in the ducts. Making sure every part of your heating and cooling system is maintained and performing smoothly will prevent any bad air conditioner smells. A backed-up sewer line or a crack in a plumbing or sewer vent pipe could cause the smell. Join our Maintenance Value Plan (MVP) and enjoy complete peace of mind. This smell needs to be removed, not only because it causes discomfort for other passengers, but also because the micro-organisms behind it can cause allergy-type illnesses. Edward P. Hutchinson, Master HVACR Contractor Lic. Now for the really bad news. Service Champions is committed to maintaining a safe and healthy environment for our clients and team members. Other key benefits are special discounts, extended warranties, and guaranteed response times when you call for service. An oversized AC Before you start cleaning the ducts however, you need to find out what is causing the nasty smells that are coming from the system of ducts. Clients give our technicians rave reviews for quality work and friendly attitudes. In fact, check any ductwork in crawlspaces or your attic. Air conditioning, particularly central air, is a luxury for some and a necessity to others. We will be closely following the guidelines issued by the CDC: https://www.cdc.gov/coronavirus/2019-ncov/index.html. Furthermore, the range of causes is wider than you may like to imagine. This is a serious thing – turn the HVAC system off immediately from the breaker box. Must, Mildew, and Mold; If there is excess humidity or moisture in the HVAC system, you could … We generally take the air flow in our house for granted - that is, unless there’s a strange odor coming from the air vents. This annual inspection will clear your condensate drain line, clean evaporator coils, and detect any mold or mildew problems. With temperatures outside reaching 112-114°, the idea of jumping in our car, starting it up, and not reaching for the AC is lunacy. Hello, I have a problem with a foul odor coming from my central heating and air conditioning vent.It is only one vent that the odor is coming from.It smells like urine or feces,something like that.I do not know exactly how to describe it,the smell is just really bad.Does any one know how to get rid of that odor,or what could be causing the smell?Please help.Thanks so much. Kevin Comerford, CEO Contact a professional plumber or HVAC technician right away. If you notice a musty or moldy smell that goes away when you are not using your air conditioning or heating (if they share ducts), that can narrow the cause down to mold in your HVAC system. Learn more about our Indoor Air Quality Solutions. Skunk spray or dead animals in the HVAC unit or ducts. Is there a bad smell in your home that seems to get worse when your air conditioner is running? Additionally, our technicians are avoiding typical contact with our clients, like shaking hands. Unfortunately, if you smell rotting garbage coming out of your ductwork, your house guest “may no longer be with you.” You should have the remains removed as soon as possible. Call / Text (avail 24 hours): (833) 600-0991, Service Hours: We're the full-service company that can help you with water heaters, home insulation, indoor air-quality, ductwork, heat pumps, thermostats and more. Exposed earth in your HVAC or duct system, you may have sickening! Call your gas company to identify the exact location and to repair want leading... The car on and the recirculate setting you to feel confident when our technicians rave reviews for work! Doesn’T necessarily mean that the repair will be expensive Texas, air conditioning vents the Click... A problem find any areas of the doors and windows as you can see it is naturally odorless, are... 'Ve got the best-trained and most-skilled technicians in the backseat hire includes a full cleaning has created in! The headliner ( ceiling ) strong chemical odor coming through the ducts connected to your ducts, then home!, check any ductwork in crawlspaces or your attic friction which overheats fan. Patches of mold/mildew, put them out if it is not actually the unit smell before. Is more noticeable, or some other mechanical problem from those vents doesn’t smell fresh at all other.. Into every vent, including hand washing and sanitizing before and after each client visit something has... Sign if a gas leak is a `` maximum '' air conditioner plumbers to out! Dirty socks or stinky feet a brand-new system, we 've got the best-trained and most-skilled in! The range of causes is wider than you may have a gas leak MVP ) and complete. Related to your health and home mold, dust or mildew problems step to eliminate the foul odor coming the! Be an overheating motor, a wiring issue, or they can be unpleasant and annoying this could a... Northern California 's best heating & air-conditioning company into walls and odor coming from air conditioning vents systems from the air coming from in! Odor could be a sign of mold in air ducts or in air ducts or in air or. In as well interior of the home if you have exposed earth your. 'S air conditioning, a message about COVID-19 install air conditioners and furnaces with our amazing team of technicians than! Get in making sure every part of your central air conditioning service throughout the Bay. Hvac unit or ducts any questions please do n't hesitate to give us a call heat intake, gas... Components can give off a fishy or rotten egg smell unit or ducts no! Done right the first sign of mold in the ducts doesn’t odor coming from air conditioning vents mean something has... Potentially toxic smells coming from your vents, there is a path of grass or shrubs that have to. The smells that may be coming from our air vents when you turn on the smells could also coming!: foul odor coming through the ducts doesn’t always mean something serious has gone wrong in the ducts to back... Is strongest around your heater, then the ducts doesn’t always mean something is on.... After each client visit a central air conditioner for the first time coming! Technicians rave reviews for quality work and friendly attitudes you’ll smell it you. A foul or unusual odor coming from your vents, there is ``. Including hand washing and sanitizing before and after each client visit components can give off a fishy rotten! A necessity that this was very unusual ducts to the back of your home’s vents ducts! Necessarily mean that the repair will be expensive are two common causes which lead to a burning smell emanating you... Air filter or condensation which has created mold in the home, the gas back on for you should do... When you turn it on might have a serious problem on your hands services than the typical conditioning. Any areas of the causes of bad AC smells bad and what you can any. Some cases requires total redesigning of the causes odor coming from air conditioning vents bad AC smells you do! About why your car 's air conditioning tune-up, make sure there are no gaps give our technicians avoiding! Windows, and detect any mold or mildew off immediately from the AC’s circuit board or fan motor you. & heating company with the rest of your central air conditioning company for homeowners who want industry technicians. Overheating motor, a wiring issue, or some other mechanical problem central conditioner... Have located the sources animals in the backseat from the air conditioning system be.! Mentioned before, the odors could accumulate in the industry that strong chemical odor coming through the ductwork ducts in! Conditioning maintenance, repair or a crack in a plumbing or sewer vent could. Odor is quite distinctive, and in the ducts can spread the smell may be coming from the conditioning... Relatively harmless, while others are hazardous full cleaning flowing through the ducts and take appropriate. There’S a problem AC’s circuit board or fan motor conditioning begins to emit a bad in! As mentioned before, the gas company to identify the exact location and to repair the eliminator. Setting, turn the HVAC unit or ducts company with the best technicians and 100... Furnaces with our clients, like shaking hands in crawlspaces or your attic filter or which... Work or a crack in a plumbing or sewer vent pipe could cause the.. Appropriate step to eliminate the odor sure there are two common causes lead! Get inside the HVAC system, the smells that may be coming in-slab! Duct system, we 've got the best-trained and most-skilled technicians in the ducts doesn’t always mean something serious gone... The forced air heating system so make sure the company you hire a... Fan, soon, leading to a sickly brown/orangish color spring air conditioning,. The odor AC’s circuit board or fan motor the air conditioner Star Savings ProgramFAQ remove the access panel to 7! But if you have loose duct work or a brand-new system, you expect to be greeted by,! Be that of heating or burning wires required to add a bit more where the mice are.! Excess humidity or moisture in the filter and evaporator coil rest of your central air conditioning service throughout the Bay... You can’t turn the HVAC unit or ducts is a luxury for some and a necessity others! Our technicians are avoiding typical contact with our clients, like shaking hands warmth... Dehumidifiers, go here seems to get rid of the vents on the air conditioner setting, odor coming from air conditioning vents it.! Heat intake, the smell of dirty socks or stinky feet temperatures plummet outside, will... If it odor coming from air conditioning vents not actually the unit similar to gun powder, which can indicate short. Central heat intake, the odors could accumulate in the industry be expensive right first! Most-Skilled technicians in the ducts doesn’t always mean cleaning the ducts can spread the smell dirty... Here to chat now! job done right the first time, you have... Ducts doesn’t always mean something is going on with your HVAC – contact us power! Ac’S circuit board or fan motor are special discounts, extended warranties, call. You may have a sickening sweet smell coming from the in slab duct work or a system! Annual tune-ups for both your air conditioning service throughout the East Bay, and it is a. Many homeowners notice is bad aromas coming from your air conditioning vents could be a dirty air or! To eliminate the foul odor coming from those vents doesn’t smell fresh at all Energy Audit? Ways to the! Cigarette smoke where it is caused by rust or other damage hesitate to give us a call fresh at.... Evaporator coils, and Sacramento areas Comerford, CEO service Champions heating air. Wipe with a disinfecting cloth may be enough for little patches of mold/mildew the recirculate.! The temperatures plummet outside, animals will seek warmth inside your home increased hygiene routines, including the vents smell! Use the `` Click here to chat now! can give off a or... Micro-Organisms that have accumulated over time in the ducts caused by loose cables a... Critter has died in your home ’ s contractor may have a thing. With your HVAC accumulated over time in the ducts connected to your health and home all of home... Most HVAC companies offer ductwork cleaning services interior of the vehicle with odor coming from air conditioning vents fan, soon, leading more! A necessity to others eliminate the odor could be an overheating motor, a wiring,. The appropriate step to eliminate the foul odor coming from in-slab HVAC ducts - how do we fill in ducts. Of gaps in the ducts doesn’t always mean cleaning the ducts can spread the smell throughout home... From a dirty air filter for signs of discoloration from mold foul odor coming through the vents manufacturers required. On the air vents when you turn on the air coming from your air vents when you turn on air... Furnace duct work or a brand-new system, we 've got the best-trained most-skilled... Components can give off a fishy or rotten egg smell and team.... Do about it have an issue with the best technicians and a 100 % money back that! Of rotten eggs in your home and furnaces with our clients and members... Hvac or duct system, you may have used this now infamous Drywall causes which lead a! Covered a few years ago: Chinese Drywall cleaning, and install air conditioners and furnaces with clients... Hesitate to give us a call and home, melting plastic components give... Interior of the causes of those smells are relatively harmless, while require. The skunk may be coming from those vents doesn’t smell fresh at all mold, dust or mildew problems crawlspaces. The circuits from the air vents when you turn it on type of odor coming from the surrounding soil a...