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DIY: How to Clean a Clogged Condensate Line


If your air conditioner condensate line is causing you trouble, it may lead to a puddle that could cost you hundreds. Cleaning up a flooded floor can be expensive. You not only have to fix whatever caused the mess, but you also have to do costly floor repairs if the damage to the flooring or surrounding furniture is extensive enough. Simply vacuuming it out only takes a few minutes, so it's worth adding to your annual maintenance list.


What you’ll need:


Home air conditioning system

Step 1: Find Your Condensate Line

Check for a 3/4" PVC or copper pipe sticking out of the ground. This should be located on the side of your house near the outside condenser unit, and it may or may not be dripping water. Most condensate drains are 3/4", however there are variances. Make sure the adapter fits your pipe. 


Step 2: Remove the Paper Filter from Your Wet-Dry Vac

Make sure to remove the filter. Keeping the filter in can catch the buildup and slow down the vacuum.


Step 3: Vacuum Your Clogged Condensate Line

Attach the adapter from your wet-dry vac to the condensate line. The adapter should fit snugly to maintain pressure. Run the vacuum for 3 minutes, so there is plenty of time to pull the water and buildup from the lines and pan. This will clear the dirty water and obstruction at the same time.


Step 4: Empty and Clean the Wet-Dry Vac

All of the buildup from the condensate line should now be in your vacuum, which can lead to clogs and mold. Carefully empty and clean your wet-dry vac once the condensate line is cleared.


DIY: How to Clean a Clogged Condensate Line - Sears