What Is The Odour Coming From My Aircon

Smelling a funky odour coming from your aircon? Let me put you onto some of the odours which may come from your aircon. Even if you aren’t experiencing any odour from your aircon right now, keep on reading, because it is never a good sign when it starts to do. Understanding this may help you prevent further damage. Some odours which may come from your aircon may include the following: 

Burning Odour

Burning odours especially those which smell like burning electrical wires could possibly indicate a mechanical problem within your aircon unit. Possibly with the fan, compressor, wires, or electrical component failure.

Gunpower Odour 

Like the burning odour, gunpowder odour may be due to a burned circuit board or fan motor. These smells, both the burning smell and gunpowder odour pose a danger. Please immediately check with a professional on their services and have them check your aircon unit as soon as possible, to prevent any possible harm to yourself or your loved ones. Inhaling these odours for a long time is not exactly the healthiest as well. 

Rotten Eggs, Nasty

If there aren’t any rotten eggs within your vicinity, the cause of this smell from your aircon is probably from something nastier than rotten eggs, it is probably from dead rodents or critters that can get stuck in air conditioner ducts. You have no idea what is crawling in there. For prevention, it is possible, get a pest-free aircon unit, however, if it happens to you, always reach out to a professional to settle the problem. They can help you remove the dead animal and clean the ducts. Having a professional check up on the ducts once a while to ensure it is also working fine and nothing is damaged is also a good practice to follow. If you are having a hard time choosing a suitable aircon servicing company, this might be the article you need.

Musty or Mouldy Odour 

First off, compared to the above odours, this odour does not indicate a serious problem with the aircon but this problem leads to poor air quality. General cause is the collation of water in the pan, lines or ducts which can form into moulds and create these musty or mouldy odours. By breathing in such odours, especially mould leads to plenty of health issues like increasing the risk of contracting respiratory infections. It is highly detrimental to felines as well, so if you do own a cat, please be conscious of this odour and seek help to clean up mould build-ups. Once that is cleared, it should be safe already. Why go through something you can prevent right? Identify early and tackle the problem. 

Gas Odour 

Usually, like the name indicates, it indicates a leakage of gas within the aircon unit since natural gas on its own has no smell. At the first sign of such a smell please immediately turn off your gas supply and your aircon unit. 

Exhaust Fumes Odour

Exhaust fumes would come into existence when fluids leak from essential components. To avoid a dangerous situation, which might put your safety at risk, have a professional check your aircon unit. Burning oil and other fluids can release large amounts of toxic gases. These toxic gases would be hazardous to health, depleting oxygen and resulting in an array of health issues. If your aircon unit is emitting a chemical like smell, make sure you get it checked as soon as possible. 


If you have any of these odours being emitted by your aircon unit. Please reach out to a professional, research on a good company who can service your needs. Taking care of your aircon unit does not mean you have to break your bank. Look for professional companies which provide packages and cheaper alternatives for you and your loved ones. A safe household, a better life. 

338 Aircon is your one-stop aircon company that solves all your aircon problems. Whether you are looking for a regular aircon servicing or whether you are facing issues with aircon leakage or drainage problems, we’re here to help.

Call/WhatsApp us at +65 9222 4141 to find out about the different aircon servicing packages we offer now. Also, you can visit our website https://338aircon.sg/ .