Common Causes of Water Leaking From Air Conditioners


Water leaks from air conditioners can be a common annoyance, as well as a threat to the health of your home. In fact, water that comes into contact with your walls or flooring can end up causing thousands of dollars in damages. So what causes water to leak from air conditioners? And what can you do about it?

According to the aircon service, these are the common causes of water that is dripping from your aircon.

Faulty installation

When an air conditioner is installed, you must make sure that all of the parts are fitted correctly. If you do not, then it may cause water leaks or other problems.

A faulty installation is the most likely cause of a leak for a new aircon or newly installed air conditioner. Bad installation means the water does not flow down into the designated drain lines. As a result, the water cannot be removed from the aircon and accumulate in the unit. The water is then leaking from your unit after a while.

So, what can you do to prevent or repair this issue? You need help from a trained professional. To reduce the chances that you’ll encounter such a scenario, consider hiring qualified aircon installation technicians.

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Filthy aircon filter

As the aircon is on, air passes through the filter to be cleaned of dust and other impurities. If there’s too much dirt on the filter, it can cause problems like leakage.

The filter should be cleaned regularly to ensure that proper airflow occurs; otherwise, it may eventually cause the cold air in the unit to freeze over and turn to water once it melts.

What you can do to prevent it is actually easy. You have to clean the filters regularly. Most aircon manufacturers suggest cleaning it every two weeks.

Incorrect amount of refrigerant

Refrigerant is essential to the functioning of the refrigeration cycle in an air conditioner. It helps the process of heat transfer among various components in your system. In simple words, an incorrect amount of refrigerant can cause the refrigeration cycle to fail and result in water leaking from your aircon.

Usually, the culprit behind the incorrect amount of refrigerant is a refrigerant leak. A refrigerant leak causes the level of refrigerant to be lower than your system needs. The low refrigerant level causes the system to only transfer a little heat to the evaporator coils, resulting in a buildup of ice that will melt into water over time after turning off your aircon.

A refrigerant leak is dangerous and should be handled by a professional. They usually will check the amount of refrigerant, empty it, and then regas the aircon.

Clogged drain lines

An obstruction in the drain line can lead to water accumulation in the unit, resulting in water spilling over.

A drainage system of an aircon unit prevents the excess buildup of condensation in your air conditioning unit. While improper installation can cause drainage systems to malfunction, it can also be a result of a gradual buildup of obstructions like dirt, debris, and mould in the drain lines. The accumulation of water inside the container will eventually manifest as water leaking out from your aircon.

You can prevent this issue from occurring by regularly vacuuming the drain lines. Scheduling a regular aircon cleaning or aircon chemical wash is also a good idea to prevent mould from making a home in the drainage system.

In conclusion

Poorly-handled aircon components can cause a water leak. Also, malfunctions can lead to significant leaks. For water leaks due to poorly-handled installation or malfunctions, it is best to reach out to your aircon contractor.

If the leak is caused by a dirty unit, you can prevent the issue from happening again if you do regular cleaning and maintenance for your aircon.

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