Why Your Central A/C Unit Leaks Water And What You Can Do To Stop It

Posted on: 13 June 2016

You know your plumbing could spring a leak, but did you know that your central A/C system could also leak water, too? Not only can it be a bit annoying to clean up, but it can also cause other issues with your A/C system, including mold growth. The following explains why your A/C unit might spring a leak and the things you can do to stop it from happening.

How A/C Water Leaks Happen

Your central A/C system doesn't need water to operate, but it can make water (in the form of condensation) as a byproduct of the air conditioning process. As your A/C system works to extract heat from indoor air, the moisture in the air condenses into a liquid form. The resulting condensate eventually ends up in a drain pan, where it's led down a condensate drain line and into a floor drain or an outlet pipe.

A clogged condensate drain line can cause the condensate to back up until it overflows the drain pan, causing water to leak out of the A/C unit. A rusted or damaged drain pan can also cause water leaks. A frozen evaporator coil can also cause large volumes of water to build up and overwhelm the drain pan when it melts.

How to Fix the Problem

Once you've noticed the water leak, cleaning it up should be your first priority. Focus on cleaning up the water leak, and then take a look at the indoor A/C cabinet (which is usually located in a utility closet or your attic).

Take a look at the drain pan first. If the pan is full, use a wet/dry shop vacuum to remove the water. Next, check the pan for any dents, cracks or rust and corrosion spots. If there's any damage on the pan, you'll want to replace it with a brand-new one.

If the condensate drain line is clogged, place the nozzle of the shop vacuum over the drain and use the vacuum's suction to pull the clog out of the drain line. For more stubborn clogs, you can use a small plumber's snake to break the clog into more manageable pieces.

For water leaks caused by a frozen evaporator coil, you'll want to find out why the coil is freezing and take preventive measures to keep it from happening in the future. Low refrigerant levels and debris on the coil itself are common issues that could lead to a frozen coil. To find out more, speak with a business like Allcounty Plumbing Heating & Air Conditioning.


Avoiding Plumbing Problems

After we purchased a brand new place, I was blown away with how many plumbing problems it had. It seemed like every time we turned around, there was another issues with a sink, a toilet, or a shower. After doing a little research, we discovered that the home had been having trouble with plumbing for quite some time, and we knew that we needed to fix things. We decided to have a professional plumber come in and completely overhaul our system, and that decision was absolutely the right one to make. This blog is dedicated to avoiding plumbing issues the first time around.

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