Why Does My Air Conditioning System Seem to Be Leaking Water?

If you’re asking this question, it’s probably because you have noticed water spots around the indoor cabinet of your air conditioner, or you have seen water dripping from the cabinet. Water coming from your air conditioner indicates a problem that needs to be addressed right away—especially if the air conditioner is positioned over a furnace in the cabinet and the water moisture is threatening to cause corrosion.

The reasons water may leak from an AC

Your air conditioner actually does not use water as part of the cooling process; a chemical blend called refrigerant is responsible for the heat exchange that moves heat from inside the home and releases it to the outside. However, water is byproduct of this process. As the evaporator coil inside the house siphons heat from the air, it also draws moisture from that air. The water moisture condenses along the evaporator coil and then drips off, collecting in a condensate pan beneath it. A pump removes the water through a drain. This is why you will occasionally hear the sound of dripping water from inside an air conditioner.

Although it is possible for the pan to become dislodged and allow the condensate to escape, there are three more likely reasons to explain water leaking from an air conditioner:

  • The condensate drain has become clogged, most likely with algae, causing the pan to overflow.
  • The condensate drain has come loose or broken off from the pan, and water is escaping through the bottom of the pan.
  • The condensate pump has failed (possibly flooded) and is no longer removing water from the pan, leading to overflow.

Whatever the reason for the leaking water, you need to have it repaired as soon as possible. The water can damage the AC, and it may also lead to water damage in your home and an increase in humidity. Don’t tamper with the pan, drain, or pump yourself: this is a job for professionals only.

For fast air conditioning repair in Nashville, TN and the surrounding areas, call Mid-State Air Conditioning and Heating. We promise that it’s “Fixed Right or It’s Free.”®

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