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4 Reasons Why Your Air Conditioner is Leaking Water

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Is your air conditioning leaking water? If yes, then you could be faced with a serious problem if you just let it happen by itself. The damage resulting from a leaky AC unit can be costly and annoying to fix it. Perhaps it’s already time to call a local air conditioning company in Birmingham, AL. Read on to discover the reasons why your air conditioning unit is leaking water and what you can do to correct the issue.

Old Drain Pans

During the cooling process, your air conditioner’s indoor unit absorbs heat and draws all the moisture from your home’s hot air. All that heat is then absorbed by the refrigerant in the evaporator coil. However, what happens to all that moisture is a different story. It actually trickles down the coil and collects in a drain pan. Over time, the drain pan can rust or even crack. This leaves your AC unit without a water collecting apparatus, resulting in a leak. The simplest and most obvious solution here is to have the broken drain pan replaced as soon as you can.

Clogged Drain Lines

Speaking of the drain pan, all the water that collects in it exits your AC unit through a drain line. That drain line can easily get clogged up by dust, mold, and other debris, blocking water from flowing out. Instead, the water fills up inside the drain pain and spills over onto your attic floor. Whenever this happens, you better call an HVAC technician and have them unclog and clean your drain line so that water can flow out freely once again.

Frozen Evaporator Coil

Any cooling system will not function properly without a refrigerant aiding the cooling process inside the evaporator coil. That refrigerant makes the coil extremely cold. If, for some reason, ice forms on the coil, then it can cause quite a lot of problems to your air conditioner. It can even lead to your AC unit losing power and making it overheat. Whenever you have issues with your evaporator coil or your refrigerant, the only solution is to call a trained and certified HVAC technician to fix it. Remember, refrigerants are toxic and harmful to the environment if mishandled, so it’s best to leave them to professionals. 

Dirty Air Filters

Air conditioning units are known to have replaceable air filters to filter out all the dust particles in your home. However, when the filter gets dirty, airflow is restricted, and the evaporator coils don’t get enough ventilation. This could cause the coils to get too cold and eventually freeze. Now, you all know what happens to a frozen evaporator coil as we’ve mentioned above. As the ice melts off the coils, moisture will drip down, causing the drip pan to overflow and leak.


A leaky air conditioner isn’t like a leaky boat or bucket where you can easily identify where the problem is. Water leaking out of your AC unit could be caused by many things, such as those mentioned in this list. It’s best to know what those potential problems are and seek help from the experts.

Don’t let your family suffer from the heat just because of a broken air conditioning unit. Let the highly-trained technicians of Xcalibur Services help you fix all your HVAC problems. We provide duct cleaning, heating, and air conditioning repair for Birmingham, AL residents. Give us a call today whenever you need air conditioning repair or emergency HVAC services!

Published May 27th, 2021

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