5 Reasons Why my Aircon Smells Bad?

Troubleshooting Why your Aircon Smells Bad

Feeling sick that your aircon is emitting a foul odour? When you turn on the aircon, you want to enjoy cool and fresh airflow. If the air is laced with an unpleasant bad smell, it can ruin the refreshing sensation. Furthermore, the smell from the air can permeate the entire room and even your entire house. There are many reasons why your aircon smells bad, but here are the 5 most common causes of aircon odour problems.

1. Clogged Aircon filter

One of the most common causes that makes your aircon smells bad is a clogged filter. Over time, the filter inside the air conditioner collects dust and other small particles. While the filter is designed to catch debris and prevent these particles entering the air conditioner, if the build-up is left too long, the air that passes through the unit begins to smell. While a clogged filter can happen in any unit, it tends to happen more with portable aircon units. If the air conditioner smells bad like feet, the cause is probably a clogged filter.

2. Aircon humidity problem

While it is common knowledge that aircon cool your home, many people forget that they also dehumidify. In order to dehumidify the air, the aircon unit needs to remove both heat and moisture. If the air conditioner you have is too big for a room, it will cool the room’s air but will not adequately dehumidify the air. When humidity is particularly high, your aircon will be exposed to excess moisture, leading to mould and mildew growth and overtime emitting a foul odour.

3. Aircon mould and mildew built up

Whenever you turn on your aircon, the interior components become moist, especially if you live in an area with high humidity like Singapore. Over time, the dust that accumulates inside the aircon unit combines with this internal moisture and promotes bacterial growth. This environment allows both mould and mildew to thrive. Once mould and mildew is present, it spreads quickly through all components of the aircon unit. If you detect a mouldy or musty smell, mould or mildew is likely the cause.

4. Aircon refrigerant gas leak

If the smell from your aircon is gas or fume-like, this could indicate that the refrigerant gas in the aircon unit is leaking. If you suspect that this is the case, you should always have your aircon checked as soon as possible to avoid further damage to your aircon system and your air quality. In order to remedy the odour, you will need to have the leak plugged and the refrigerant gas refilled.

5. Decomposing insects trapped in aircon

Unfortunately insects and animals, particularly rodents and birds, may enter the aircon vent, become trapped and eventually die. Eventually, the animal’s body will decompose and emit a foul odour, similar to rotting eggs. These foul odours can make you dread turning on your aircon and force you to choose between a hot, humid house, and a putrid smell. Due to the fact the air has to pass the decomposing animal, the air will pick up this scent. If this is the case, you will need to have the animal’s corpse removed and the ventilation cleaned out thoroughly.

Resolving your aircon smells bad problem

Factors such as humidity, lack of cleaning or damaged components, can lead to your aircon emitting a foul odour. If your aircon smells unpleasant, it can be due to many different causes. The top five reasons your air conditioner smells bad are: mould and mildew, decomposing animals, a refrigerant leak, a clogged filter or an oversized aircon unit. Whether you detect a smell of rotting eggs, gas or dirty socks, all odours indicate that there is something wrong with your aircon.

Aircon Repair Singapore Specialist

If your aircon smells bad, you should remove the source of the odour as soon as possible by seeking professional aircon repair services help. Professionals, such as Aircon Servicing Singapore, can assess, clean and repair your aircon unit. So to rid your home of odour, contact us via the online form for a free quotation and an extra 5% discount.