Ensuring your Air Conditioner smells pleasant!

In this post, we’ll go over some of the common reasons why you may have a stench erupting from your air conditioner. The smell could be of anything, such as a wet sock like odor, something burning or even a smoky smell. Let us go over some possible smells that AC owners are likely to experience and find out the reasons for their occurrence, along with their solutions.

If your AC is emitting a chemical like smell you should get it checked promptly by a professional. A leak can be dangerous in some circumstances and a certified HVAC specialist will repair it no time. In the meantime, crack open the windows and make sure your home is ventilated. This will not only keep the smell out but also prevent any hazardous effects from the chemical leak.

There are a lot of electrical components within your air conditioning unit. Circuit boards, power wires, fans and compressors etc. If your AC smells like burning gunpowder or plastic, it probably means any one, or even multiple of these components are in fact burning. In this case, immediately turn your air conditioner off and consult your local professional for a solution. Do not attempt to do a DIY with this sort of a problem, it can be dangerous.

Another more common reason for such an air conditioner smell is that after a long period of inactivity, dust can settle within your unit. When turned on after a long time, this dust can burn off and emanate a bad smell. This is only temporary, and is nothing to be too concerned about. Though if the smell remains, the AC starts to malfunction or the smell is highly pungent, you must turn off your unit and give your local HVAC expert a call right away.

Most manufacturers now provide mobile and web apps to remotely control your smart AC, as long as it is connected to your Wi-Fi. This gives you global control over your appliance. A major concern when buying such an appliance is the ease of use of the apps, their design, features, responsiveness etc. You must make sure that you can easily control the air conditioner and access the smart features through a user friendly app.

A foul or rotten air conditioner smell is usually the result of dead rodents or critters being stuck in the AC. This is a characteristic and distinct smell which you surely cannot mistake for anything else. Birds and insects can nest or take refuge in your duct work and unfortunately get trapped in the equipment.

With the passage of time, these dying animals emit unpleasant smells. As soon as you turn your air conditioner on it can discharge the foul smell into your home. Dying or stuck animals can also damage different components within your system.

If you have a ductless/central air conditioning system, lizards and other critters can sometimes go into your indoor unit and make for an unpleasant experience.

You will need to locate the exact duct from where the stench is erupting, use a screw diver to remove the cover and then carefully remove the carcass. It can be tricky if you don’t see the dead animal in sight, keep a torch in quick reach. Once removed, gently wipe the area clean and make sure it is dry. It is recommended to have your duct work checked to ensure nothing is damaged and seal any points of entry.

If your AC smells a lot like skunk spray, you won’t be mistaken. This means that gas is leaking and getting into your ductwork. At the first sign of such a smell immediately turn off your gas supply. As a second step contact your utility who will detect the source and repair the problem.

A stale and dingy smell is by far the most common and foul smell that is experienced from ACs. 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. In case of a leakage, you might even get visible signs in your indoor ductless unit, such as water dripping down your wall.

Another reason for such a smell can be dirty filters. If you are living in a hot and humid climate, and turn your AC on after a long period of time, moisture can accumulate in your filters.

You will need to contact a professional and get your AC’s lines and ducts thoroughly cleaned. This will only remove the unpleasant smell. In case of a leakage the source will also need to be fixed to prevent further problems.

There are a couple of things to keep in mind while we are at it. Never try to do AC repairs by yourself. Always call a professional to do the job for you. Electrical components and water do not mix well, and there is a high chance of electric shock. You would be wise not to experiment at such a time.

If you do feel qualified enough yourself to do a DIY, be sure you have thoroughly gone over the maintenance and operating manuals of your air conditioner, and have the right set of tools for the job. Turn off the main power supply to your AC and have proper personal protective equipment (PPE) at hand.

Moreover, do not try to mask the bad smell using an air purifier or freshener, it will only make things worse. Delaying proper repair work will only damage your AC more than it already is, and perhaps lead to you buying a whole new unit altogether.

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