3 February 2020

Cool, Dry or Fan Mode: What Mode Should I Use For My Air Conditioner?

Cool, Dry or Fan Mode: What Mode Should I Use For My Air Conditioner? | Daikin Malaysia

In years back, air conditioners used to be as simple as just on/off switch with the high, medium and low options. But with the latest technological innovations, the modern air conditioners offer more features with multiple modes of operation.

These multiple options include the cool, dry and fan options. Irrespective of the time of the year, the humidity and temperature levels afford you the freedom to save energy by setting the mode your air conditioner runs on.

Just a simple understanding of every setting helps you in maximizing the most of your air conditioner at a cheaper cost instead of allowing your aircon to blow at full blast making you uncomfortable.

Cool Mode

Cool mode is the default mode in which the air conditioner operates (i.e. the temperature setting and fans speed).

In cool mode, the air conditioner takes in hot air and runs it through the compressor so as to cool the air before blowing it out into the room.

The possibility of saving electricity in this mode depends on the temperature setting on this air conditioner as well as the starting temperature of the room.

For instance, it will consume less energy in changing a room 30 degrees centigrade to 25 degrees centigrade but more energy to change from a room 35 degrees centigrade to 25 degrees centigrade.

The cool mode utilizes both the compressor and the fan component of the air cond.

When to use cool mode:

  • You can use cool mode when both the temperature and the humidity levels are high.
  • Use the cool mode when you want the temperature to stay at a constant, cool level.

Dry Mode

If you are in a city close to the sea, you will likely experience dry some days in the year when comfort is low as a result of the humidity. To achieve comfort during days like this, the humidity has to be removed. 

It is certain that the feeling in a room will be unbearable when the temperature and humidity are present, thus the need to remove humidity.

Dry mode simply works by sucking out the moisture of the air (humidity) so that the air becomes bearable and comfortable; i.e. the humid air is taken into the air conditioner, dried by the evaporator and then released back into the room as dry air.

In this mode, the air conditioner does not blow plenty of cool air, but rather it dries the air.

It is important to note that it does not work as an air dehumidifier as it does not suck all the moisture from the room, rather maintains the room comfort at least at 60% humidity.

When to use dry mode:

  • When the temperature is acceptable, but the humidity is too high.
  • Use the dry mode when you do not need to cool the air.
  • During cooler months or the rainy season.

Fan Mode

When switching to fan mode, the fan runs continuously, but the compressor is turned off. It is only the fan that circulates the air already present in the room. In this mode, no change is made to the temperature nor the humidity levels.

Fan mode is not very effective for better comfort if the room is too hot or too humid (in this case, a ceiling fan is advised). Fan mode is best for climates where little air circulation is needed.

When to use fan mode:

  • When both temperature and humidity are acceptable, all you need is just a simple movement of the air.

Quiet Mode

The new technology used in Inverter air conditioners enables accurate operation, which in turn allows users to have a stable room temperature. Your air conditioner will be able to operate quietly and without any fluctuations, unlike conventional air conditioners.

When to use quiet mode:
Switch to quiet mode before sleep to enjoy additional tranquillity and better sleep quality.

Sleep Mode

As our body needs less cooling when we are sleeping, by switching to sleep mode, your air conditioner will automatically regulate the air around you and increase the temperature bit by bit without you even noticing it (up to a maximum of +3 degrees, depending on your air conditioning brand and model).

After a while, it turns off.

When to use sleep mode:

  • If you prefer not to use air conditioning throughout the night, switch to sleep mode. Some users opt for sleep mode for energy saving.

Turbo Mode

The turbo mode is the most powerful. It’s for absolute quick cooling. It allows users to cool a room quickly and effectively by operating at a span of 30 minutes before switching back to the previous settings.

When to use turbo mode:
Switch to turbo mode whenever you wish to cool down a room in the shortest time possible.


With the knowledge you have about the differences between these modes, you can start using your aircon effectively; running it in the appropriate mode based on the current temperature and humidity of the room.

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