Animals can also damage wiring, components, and ducts. If you turned on your air conditioner this summer and discovered it’s sending a bad smell throughout your house, you may be wondering why. If your air conditioner smells moldy, the general cause is accumulation of water in the drain pan or drip lines (or ducts in case of ducted systems), which can cause fungus or mildew to grow. Moisture naturally collects on the evaporator, but running the fan at high-speed with the AC turned off can dry the evaporator. Burning Smell; If something smells like it’s burning, it probably is. This was my Alltrack’s first time back to the dealer after buying it new. This unwelcome odor is likely the result of mold growing on your vehicle’s air conditioning evaporator core. Excess humidity and moisture in your air conditioner mean it isn’t properly draining. If you start smelling a moldy odor, your air conditioner has most likely started growing fungus. While your air conditioning is running, moisture will build up in the filters, which eventually causes the bacteria which leads to bad smells coming from the vents. In case of a leakage, you might even get visible signs in your indoor ductless unit, … First, check around the air conditioning unit for any condensation or signs of mould growing. If the air still isn’t cold after adding more Freon then there is probably another leak in the system. Dead animals not only cause a bad odor. Mold and mildew growth is the most common cause of bad smells in your AC system. The smell seems to be more and more noticeable recently. The tech said there was some moisture on the filter. A bad smelling air conditioner left unfixed may spread disease or bacterial infections in the lungs. Re: Air Conditioning Smell (MattyG) 05-17-2007 11:14 PM #13 The worst smell that can come from an ac is having dead leaves on the heater core... that just smells like straight piss. The dealer fixed a slow leak (nail) in the right rear tire for free. Depending on the source, it can cause an asthma attack, allergies, respiratory problems such as a cough and infections, skin irritation, dizziness, sore throat, red and painful eyes, etc. Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / Complaints / Smells from heater and air conditioner unit. As it gets used, your car's air conditioning begins to emit a bad smell when you turn it on. The smell is not only annoying but breathing harmful debris, and dust particles can harm your lungs. All in all, 5/5 stars… a pain-free (and free free) experience. The car smells like dog poop or wet sour socks when you turn it on and it does not push out cool air. My tech gave me tips on how to avoid the smelly socks odor in my VW’s air conditioning. Why My Air Conditioning Is Smelly A musty or rotten smell coming out of your air conditioner is simply annoying when you want to find refuge in a cool room on a hot day. Whether you detect a smell of rotting eggs, gas or dirty socks, all odours indicate that there is something wrong with your aircon. If you’ve ever had this happen in your car or been riding in a vehicle with the problem, you know exactly what we’re talking about. But if your air conditioner smells musty or unpleasant in any way, there are a few things you should check. They vacuumed out the system and added a deodorizer, which smelled like cinnamon Lysol, if there is such a thing. Golf Climate Control - Cool Air Without AC? However, you are greeted by an unpleasant musty smell releasing from your air con. A Phoenix Tech Explains. To manage your air con needs contact us directly at 07 3274 2199 or visit our home page for more information. This is due to micro-organisms that have accumulated over time in the system vents. There's a disgusting reason why air conditioning units often smell so bad. Also, some things such as regular filter maintenance according to the manufacturer’s recommendation can be done on your own. 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. The smell was like some kind of mold from damped wipers. The evaporator is located under your vehicle’s hood and gets wet when humidity condenses on the core’s surface. 2. bad smell can also be a sign of malfunction, and may require a professional check-up. After using the air conditioning for a while, when I turned off the AC (either during the same trip or next trip) but kept the air flow on, some bad smell would come out of the vent. The AC smell was pretty bad, it’s never a good sign, and may require professional! 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