How to Identify a Leak in Your Central Air Conditioner

Black AC unit outside a building
  • 1-2 hours
  • Intermediate
  • 0-100
What You'll Need

A central air conditioner or cooling system may sometimes leak water. All kinds of central AC’s produce condensate and AC's will have a drain pan to hold the condensate. A drain pipe is attached to the drain pan which empties the condensate outside. At times, due to the clogging of the drain pipe, water may leak from the AC.

Step 1 - Check the Drain Pan

Checking the drain pan regularly will help you identify if your AC is leaking. Open your AC’s cooling coil cabinet and see if the drain pan is flooded. If it is, you can be sure your drain pipe is clogged and it needs to be cleared.

Step 2 - Clear the Drain Pipe

Man repairing an air conditioner

You can clear the drain pipe by using bleach and water. Otherwise use a pump and water to push water through the drain pipe.

Step 3 - Check for Water Stains

Check for water stains on the floor around the AC equipment and below the ‘A’ frame cooling coil. This will help you know if your AC has been leaking.