Why is my AC Leaking Water?

The 3 possible reasons why your air conditioner is leaking are because: the drain line is clogged with debris, the system has a low refrigerant level and or the filters are very dirty.

Have you ever seen water droplets forming on a cold glass of water? Because that is exactly what’s happening to the air conditioner’s evaporator coil which is inside the indoor unit.

The moisture that forms on the coil drips into a drain pan which leads to the condensate drain line. This line runs to the outside of your home, so basically, there shouldn’t be any leakage coming from your AC Unit.

Overtime, unfortunately due to lack of maintenance and for other reasons, your AC may develop leaks. But don’t panic because we will find the reasons and solutions to this issue together.

Possible Reasons and Solutions why your AC is leaking:
The Air Conditioner condensate drain line is clogged

If your Air Conditioner is leaking water inside the home, it is possible that the Drain line is clogged with dirt, dust or mold. When this happens, the water in the drain pan cannot exit through the condensate drain line to the outside of the home.

To unclog the drain line, you can use a wet/dry vac to remove the debris. This should free the condensate drain line and allow the flow of water again.

If you don’t feel comfortable with this task or method, feel free to call a trained AC Professional for help.

Low refrigerant level

The evaporator coil can become frozen due to the low level of refrigerant in the AC System. As the ice melts, the excess water would cause the drain pan to overflow creating a mess.

Note that if your AC System isn’t cooling your home as it should, then the possibility exists, that your AC System is low on refrigerant.

Dirty Air Filters

How can a dirty air filter possibly cause an AC to leak? Well, it’s because a dirty air filter blocks the flow of air which moves over the unit’s evaporator coil. When this happens, the coil becomes tremendously cold and starts to freeze over or like we say in Guyana “Ice up”.

As the frozen evaporator coil begun to thaw, the excess water overflows the drain pan and the unit starts to leak.

Dirty filters are often the source of a frozen evaporator coil. Hence, it is of utmost importance to clean or replace your filters at least every three months. So, check to see if your filters are clogged and dirty, because that could be the reason why your AC is leaking.

Other Possible Reasons why your AC is Leaking

Some air conditioning systems have a condensate drain pump, which is used to pump the water from the drain pan, through the condensate drain line to the outside of the home. If this pump is broken, the water would not be able to exit through the condensate drain line. Hence, the drain pan would overflow and leak.

It is good to see that you have made it to the end of this article and we hope you have gained the insights toward the leaking of your Air Conditioning System.

Remember to seek help from a Trained AC Technician and always schedule your AC maintenance every three months.