Aircon Condensation: What You Need To Know

The aircon condensation process has many aspects worth discussing. But before diving into the nitty gritty of the said topic, we should understand what condensation is. Condensation is the process of converting water vapors into liquid water. Now we will continue our main discussion in the context of aircon.

For Aircon Services

Condensation can occur at any place because it is a natural phenomenon, but in the aircon, it will damage the electrical components of the aircon. Therefore, significant condensation aspects in the aircon context need special attention.

What is Aircon Condensation?

In aircon, we know that the warm air enters the unit and exits the cool air. When warm air enters the unit and gets in contact with something cold, its temperature reduces. Therefore, you will notice condensation around the vents and air ducts of the aircon.

Condensation can also occur when the aircon moisture exposes to the cold aircon ducts. The condensed air turns into water droplets and drips down the unit. You should know about several causes and effects of aircon condensation. Therefore, this guide is here to help you enhance your knowledge.

Causes of Aircon Condensation

Some of the common reasons for AC condensation are listed below:

  • The temperature difference between the outside environment and the aircon vent.
  • The sparse setting of aircon ducts.
  • Lack of insulation around the ducts.
  • Higher moisture content in the air.
  • Clogged aircon ducts.
  • Dirty air filters

Discussion on the Causes

The clogged bacteria in the condensation pan cause water to Collect and fill up over time and ultimately cause condensation. It is essential to clean and pass the aircon components through chemical wash.

The evaporator coils of the aircon are cold and in contact with the air outside. Therefore, whenever any moisture gets in connection with these coils, condensation will immediately take place.

A large quantity of condensed water can damage the other parts of the aircon if it is overlooked in the first place. Water will fill up and cause extensive damage.

The cleaning and service of aircon components, especially ducts and filters, is crucial. If you overlook it, the clogged ducts and dirty filters will cause the evaporator coils to freeze, increasing the moisture content around them. Water droplets will keep filling up and damage other parts of the aircon.

Trunking Condensation

Condensation is normal to occur in the aircon because the warm air enters from outside and comes in contact with the cold evaporator coils. The moisture instantly converts into water droplets. These water droplets start to gather inside the aircon trunking.

The aircon trunking typically contains the mechanism to drain this water, but sometimes it may fill up inside the trunk and pool. This pooling of water will damage other components of the aircon.

The problem can occur when the technician installs the trunking inadequately so that the water can pool around or when a clog occurs in the flood drain. In both cases, water will fill up and damage the electrical components of the aircon.

What is Aircon Condensation

Aircon Condensation on Wall

Aircon condensation leaks or water content around the unit can cause water droplets to wet the wall. When the condensation occurs more often, the paint on the wall can damage. Therefore, it is essential to tackle the condensation problem.

How to prevent Aircon Condensation

  1. Consider using fiberglass instead of metal to avoid duct condensation. If you already have metal ducts, ensure they have proper fiberglass insulation.
  2. Proper fitting of the unit is also a significant issue and needs to be addressed as soon as possible.
  3. Make sure that the surroundings should contain low moisture content. You can make this happen by managing a proper ventilation system in the room, and the windows should open and close at the right time to refresh the air.
  4. The room should not have any holes or cracks to ensure that damping is kept at a minimum level.
  5. Regularly maintain the aircon to ensure proper airflow. If the airflow is improper, the temperature inside the ducts will reduce, and the vents will start sweating.
  6. Change or maintain the air filters regularly. Typically, air filters need replacement after three months. You may need to change the filters even quickly if there is a lot of dust in your space or your pets.


Aircon condensation is a common problem, and we often encounter these issues in our everyday life. Therefore, it is vital to know the causes and effects of condensation from an aircon’s perspective. Inadequate installation, improper insulation, clogging in the ducts, dirty air filters, clogged floor drain, the high moisture content in the air, and the reduced temperature of the unit ducts are the most probable reasons for the condensation around your aircon unit. Some prevention techniques help cope with this common problem.

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