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How to Check If Your Condensate Pump Is Working

A condensation pump, for the central air conditioner in your home, is used to remove excess water that is produced when the air conditioner is working. If you notice water leaking when the air conditioner is making cool air, the condensation pump may not be working properly. You can check the condensation pump by examining components when performing regular maintenance.


  1. Pour water from a plastic container into the pan for the condensation pump. If the pump does not start working, it may not have power.
  2. Verify that the power cord for the condensation pump is plugged into a working electrical outlet.
  3. Go to the circuit panel and see if a breaker has tripped or is a fuse has blown. Reset a tripped breaker or replace a blown fuse.
  4. Examine the check valve, which is located near the discharge tube for the pump, if you see that water is not completely emptying from the pan.
  5. Turn the valve counterclockwise or to the left, using an adjustable wrench, to remove it. Loosen the ball that is on the inside of the valve and verify that it is free of any obstructions.
  6. Replace the check valve and turn it clockwise or to the right to tighten.
  7. Verify that the drain tub is free of obstructions that can block the flow of water, such as algae. Clean algae from the drain tube by pouring a water and bleach solution through the pipe.

Things You Will Need

  • Adjustable wrench

About the Author

Cameron Easey has over 15 years customer service experience, with eight of those years in the insurance industry. He has earned various designations from organizations like the Insurance Institute of America and LOMA. Easey earned his Bachelor of Arts degree in political science and history from Western Michigan University.