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A/C Leaking Water

May 2, 2013 | Blog


My Air Conditioner is Leaking Water!

This is a common cause for service calls, especially in the late summer. It does need to be fixed, but it may not be as bad as you think it is.

First of all, most residential air conditioners do not contain water when they are installed. The exception to that would be water source heat pumps but those are quite rare. Odds are that your air conditioner does not use water to cool itself. So why is all that water dripping, or maybe in your case, pouring out of it? Well, air conditioners pull the humidity out of the air. When the system gets cold, moisture in the air condenses and collects on the cooling coil. This is no different than what happens when you put a cold glass of water outside on a warm summer day. Moisture in the air condenses and starts to drip on the outside of the glass.

Manufacturers of air conditioners design multiple ways to get rid of the water after it has been pulled out of the air. They include, but are not limited to, drain pans, pumps, drain lines, etc. In many cases, the drain line has either been clogged or cracked and that is why you see the water dripping out of the system. Sometimes the drain pan has cracked and needs to be replaced and that is much more expensive.

The reason that this happens so frequently at the end of the summer is because in the Fresno and Clovis areas, the humidity levels start to increase which means that there is more moisture in the air to be removed. This means that more water has to be put through the drain line or pump, etc. The leak should be fixed in order to prevent water damage. But if the leak is on a system that is on a roof, then the water usually drains off. Your air conditioning system is probably not harmed, But since it could be, it is best to have the system looked at as soon as possible. Prompt repairs could prevent leaking on other vital components in the system. In most cases, the leak simply needs to be fixed so that your roof can have time to dry out to avoid reducing the life span of your roof. Mold and bacteria can grow if the roof stays wet for a long period of time.

If the heating and air conditioning system is inside your home, you have what is commonly called a “Split System”. This means you have a small unit outside and another unit inside. Any water damage could be a bigger problem. Hopefully the system is leaking into a secondary drain pan and is not causing much harm. If not, the water could be causing damage to other parts of your system and to your home. In addition, your friendly air conditioning contractor would definitely like to repair your system before mold starts to grow! So go ahead, and give us a call.

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