7 Surprising Myths You Should Know About Your Air Conditioner

a lady feeling hot under an air conditioner

7 Surprising Myths You Should Know About Your Air Conditioner

The wonder of present-day comfort can be easily overlooked among the soothing murmurs of our air-conditioned rooms. However, beneath the comforting wind, there is a list of misconceptions and myths that have sneaked into the reality of air conditioning.

As we unwind the web of surprising air conditioner myths, get ready to be surprised, amused, and maybe even a little confused by the new information that will make you question what you thought you knew about these vital home appliances.

 It's time to clear up the myths, shed light on the unsung hero keeping our homes cool, and debunk the rumours.

Myth: Low Temperature Is Similar To Dry Mode To Reduce Humidity

The relative humidity and outside temperature determine the amount of energy air conditioners use. However, due to their design, we frequently become fixated on the power and temperature buttons on AC remotes, ignoring the other settings.

Our heightened sensitivity to humidity causes us to sweat in spaces high in moisture, which makes us feel even hotter. As a less powerful version of "Cool Mode," "Dry Mode" is more advantageous when used in humid but not excessively hot scenarios. It may also be more energy-efficient at removing humidity from the space.

When you run your air conditioner in dry mode, the fan operates more slowly, cooling the evaporator coil and allowing water vapour to condense when the dryer air exits the unit. While not fully dehumidifying the room, this option will cut down on moisture and consume less energy than the Power or Cool modes.

Myth: Air Conditioner Produces Fresh Air

automotive air conditioning system

There is a common misconception that air conditioners generate, let in, or produce fresh air. Their main function is to cool the air in a room.

Most air conditioners work like this: 

  1. Evaporation of Refrigerant

The process begins with warm room air travelling over the evaporator coils. As heat is absorbed by the refrigerant in these coils, it evaporates and turns from a liquid to a gas.

  1. Optimising by the Compressor

The refrigerant, which is now in gas form, is transferred to the compressor. It is compressed here, which significantly increases the temperature and pressure.

  1. Condensation in the Condenser Coils

The heated, pressurised gas moves towards the coils of the condenser. As the refrigerant condenses back into a liquid condition, heat is released into the outdoors.

  1. Distribution of Cooled Air

Simultaneously, a fan in the AC unit draws warm air from the space over the cold condenser coils. The air moves through these coils and is cooled by the cold refrigerant inside.

  1. Continuous Cycle

After releasing its heat, the liquid refrigerant goes back to the coils in the evaporator, and the process is repeated. This ongoing cycle controls the room's temperature and humidity, guaranteeing a comfortable interior atmosphere.

Heat is produced during this conversion process and released outside by a fan and an additional set of condenser coils. While air conditioning may appear to be producing new or fresh air in your space, you are actually experiencing refrigerated indoor air.

Myth: The Placement Of Thermostat Does Not Matter

An important consideration in evaluating an air conditioner's efficiency is where to put the thermostat. When choosing a location for the device, there are a number of things to take into account. This includes avoiding the rooms that are the hottest or coldest. Additionally, make sure that direct sunlight does not affect the sensor's reading.

Myth: Ceiling Fan Reduces Air Conditioner's Runtime

The idea that ceiling fans reduce your air conditioner's runtime is another incorrect air conditioner myth. It merely serves to increase the room's air circulation. They provide a sense of wind chill, which can make you feel cooler and the space more comfortable.

Instead, installing a ceiling fan can improve air circulation and more efficiently distribute cooled air, giving the impression that it aids the cooling process. In this instance, you can reduce your use of air conditioning by turning up the thermostat a few degrees. Although they complement one another, your air conditioner won't have to work as hard.

Myth: The Location Of Your Indoor Unit Is Irrelevant 

This fallacy may result in increased energy consumption and decreased comfort. Despite common perception, the indoor unit's location matters.

For best results, avoid positioning the unit in the following places:

  • Exposed to direct sunlight

  • Wrong height on the wall

  • In a position where airflow is blocked

Should you fail to do this, you will be wasting electricity and increasing household expenses as your unit will have to work harder.

Myth: A Larger Unit Can Cool Your Space More Effectively 

aircon experts working on aircon

Better air conditioning comfort does not necessarily translate into a larger air conditioning unit. An air conditioner that is too big for your room may frequently short cycle on and off. 

As a result, your system becomes overworked, using more energy than needed and increasing your energy costs. When the technician installs a new AC unit, ensure they get the right size for your home.

Myth: New Units Do Not Require Servicing 

For those who own newer air conditioners, it's not entirely proven that periodic examinations are a waste of time and money. Although newer air conditioning units may have a lower maintenance requirement than older ones, it's still a good idea to get your unit checked often for a number of purposes.

The efficiency and performance of even newer units could be compromised by problems like:


  • Dirty filters

  • Accumulation of coils

  • Refrigerant leakage

By identifying and resolving these problems early on, preventative maintenance can help make sure your unit is operating at peak efficiency. Future expensive repairs can be avoided by detecting possible issues early on during maintenance.

Busting The Cool Myths Behind Your Air Conditioner's Mysteries!

By clearing the air of the myths surrounding modern air conditioners, we have revealed the startling facts that characterise these cooling wonders. 

Understanding our air conditioners extends beyond the typical misconceptions, as demonstrated by the myths regarding energy usage that are dispelled and the complexities surrounding ideal temperature settings that are clarified. 

Now that you know more, you can make wise decisions to keep your home comfortable, cool, and energy-efficient by confidently navigating the field of air conditioning.

Transform The Comfort Of Your Home In Singapore With 81 Aircon Today!

Get ready to feel the most incredible cooling comfort ever! At 81 Aircon, our skilled technicians are committed to providing excellent service and making sure your air conditioner operates at its best.

When you hire 81 Aircon to install your AC, there are no hidden fees, GST charges, or transportation fees, and you don't have to pay a $50 on-site diagnosis fee. For more information, contact us by phone at +65 6261 0081 or through email at sales@81aircon.com.

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