Air Conditioners Create Condensation. How to Avoid Water Damage When Running Your AC

Published on: August 30, 2012

One of the more annoying and damaging effects of running an AC for an extended period of time is the water damage that occurs. Too many people do not know how to protect their AC unit from the condensation that is naturally created through running a unit in the more volatile seasons of the year. This ensures that they will spend a great deal of money (most of which they do not have to spend) on air conditioning service calls to fix the problem.

However, with a few precautions, every household and business can increase the efficiency of their AC unit and decrease the amount of water damage that condensation causes. Below are a few tips on how to avoid air conditioning service calls and how to protect your AC from the water damage of condensation.


Pay attention to the AC drainage that occurs.

In most layouts, the evaporator coil of the AC unit is hidden away from view. This evaporator coil is the piece of the air-conditioning unit that catches condensation before it is able to create a significant amount of water damage to your pipelines. It redirects the condensation to the main training points of the air conditioning unit.

Many of the more high-end air-conditioning units will also have a secondary and even the tertiary drain pan. These backup drain pans will run from the evaporator coil to the outside of the building. This is the drainage that you need to check to avoid having an air conditioning service for water damage.

If you do not check this drainage for a while, the emergency drains may build up clogs and overflow. You’ll see this as conversation and water around the unit. If you have the unit in a dark space, you risk mold growth there because the conditions are ideal.


Clean your coils.

If you do not clean the coils in your air conditioner unit or have the relatively inexpensive air conditioning service necessary to clean them on a regular basis, you risk overworking the coils. Over work within the evaporator coils can cause a freezing of the coil, trapping contaminants and condensation inside rather than delivering it outside the home where it can be properly disposed of.

This is a problem that should involve an investment in a licensed professional. If you find that your evaporator coils are freezing and causing condensation to stick inside of itself, an air conditioning service is in order.


Check your refrigerant pressure on a regular basis.

A refrigerant pressure that is low can cause the same effect as a dirty evaporator coil. The evaporator coils will become less efficient and less able to transport condensation to a place where it will not cause water damage to your air conditioning unit and the surrounding environment.


Watch for algae growth inside of your coils.

Because there is so much water and contaminants coming through your coils, you will naturally create an environment that is conducive for the growth of fungus and algae. If algae is allowed to grow unchecked, it can also cause clause in the system. This will create water damage inside of your system and only serve to exacerbate the damage that the algae itself is doing.

In all of the above three tips, the main effect that you want to avoid is airflow blockage. Whenever you have a routine air conditioning checkup, make sure that your licensed professional always checks the clarity of your airflow in your air conditioning unit.


Although many people may not think that a routine maintenance program for an air conditioning unit that tracks the above markers is necessary, it is much more effective than creating a real problem for yourself and your real estate by trying to save a quick buck. It is much less expensive to begin a routine maintenance program that watches for blockages in the evaporator coils of your air conditioning unit than it is to clean out condensation and water damage once it has taken hold.