Air conditioner leaks are fairly common problems with an HVAC system, but it doesn't mean they're not frustrating. An AC leak can cause water damage in your home, and it also likely means there's a problem with your system that may affect how efficiently it runs when the first heatwave of summer arrives. Here's a closer look at common causes of AC leaks and what to do about them. 

Why Leaks Occur in AC Units & How to Address Them

1. Damaged Drain Pan

The drain pan is located underneath the indoor air handler. It catches condensation from your AC unit that naturally occurs while it runs. If your AC unit is aging, the drain pan may have become rusted and can no longer hold the condensation like it’s supposed to. 

After turning your unit off, inspect the drain pan for any damage. If it is rusted or damaged, call an HVAC contractor for a replacement. 

2. Clogged Drain Line

The water that's collected in your drain pan is drained out of the home through a drain line or drain pipe. Over time, dirt, mold, and debris can build up in the pipe and block water from flowing out. When this happens, the water has nowhere to go and will overflow from the drain pan. Many units have a safety mechanism that shuts the cooling system off once the pan fills up if the drain line is unable to remove the water.

It can be difficult to locate a clog and remove it without damaging your HVAC system, so contact a professional if you suspect you have a clogged drain line. They'll be able to identify the issue quickly and clear the line without damaging any components. 

3. Dirty Air Filter

The HVAC filter captures dust, pollen, and other pollutants as air flows through the unit. Once it gets clogged up, a dirty filter will block the airflow over the evaporator coils, which can cause them to freeze. When this happens, ice begins to form over the coils and drips excess water into the drain pan or on the floor when it melts. 

Change your air filter at least once per season to avoid the buildup of dust and debris. Reusable filters should be cleaned on the same schedule. 

If you need an HVAC contractor to fix your leaky AC unit, contact Long's Air Conditioning & Refrigeration in Silverhill, AL. This company has been offering a wide range of cooling services for residential and commercial clients in Baldwin County for over 40 years. They can quickly address an air conditioner leak and get your system back to cooling your home efficiently in no time. Visit their website to learn more about their air conditioner services or call (251) 947-9499 for a quote. 

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