Skip to content

Why Is My Air Conditioner Leaking?

Shock your friends with this post.

Have you ever wondered why your air conditioner is leaking water from the indoor (evaporator) unit? Or better yet, how to fix it?

The three most common causes of your air conditioner to leak from the evaporator unit are:

  • A blockage in the main drain, which is the main water catchment for the majority of water to fall into at the front of the unit.
  • A blockage in your rear drain, which is a small, skinny drain that sits in the back of the unit.
  • Or the indoor coil. The coil is located underneath the air conditioner filters and looks similar to a radiator in appearance.

Always remember that if the indoor coil is dirty and blocked it would generally indicate that the entire unit requires a full service and stripped down. It is not economical to simply pay someone to unblock a drain rather than getting a full service of the system as the blocked coil could cause the drain to further block in the very near future and create the exact same problem all over again.

It is advisable to clean and maintain the air-conditioner filters within your air-conditioner. This will prevent the majority of dust and grime and other various wastes entering the coil and beginning to block it and causing waste buildup within the drain pan, which can then fall into the drain pipe, and block the air conditioner drain.

By cleaning the air-conditioner filters not only are you preventing blockages within the air-conditioner you are also insuring that the unit runs out its full potential was using the least amount of power. A blocked air-conditioner coil can lead to higher power consumption as it must work harder to perform the same amount of work and may also lead to a reduced life span of your air conditioning system.

Cleaning your air-conditioner filters is it easy and simple task to perform but you may need a small stepladder to stand on in order to reach them. We have made a video guide on how to clean remove and reinstall your air-conditioner filters. In a brief overview however:

  • Simply lift the indoor filter cover by pulling upwards until the cover clicks into place and rests easily against the arms allowing access to the filters.
  • Remove the air conditioning filters by lifting up and outwards towards your person. Wash the air-conditioner filters underneath the garden hose or a tap and insure that all dust and grime is removed from the air-conditioner filters.
  • Now, simply reinstall in the reverse manner from above.

Always remember if you need some more help you can call us in our office and will be more than happy to provide free advice from one of our qualified refrigeration mechanics.