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Albert Allegue

How to Clean Your AC Condensate Drain Line with Vinegar


A clogged condensate drain line is one of the most common reasons Residents need to call in for a professional repair for their AC system. However, may Resident don't realize the problem is usually avoidable with regular care and DIY maintenance.

If your condensate drain is clogged, you can likely remove the clog yourself. Follow the instructions below:

Step 1. Turn off your air conditioner. Turn the system off at the thermostat as well as at the breaker.

Step 2. Locate your condensate drain line. Your drain line is a PVC pipe located near your outdoor unit and is attached to the wall of your house.

Step 3. Identify the access point on the drain line. Most drain lines will have a T-shaped vent tee with a cover or cap. Remove the cap at the top of the drain and inspect for blockage.

Step 4. Flush with distilled vinegar. Add 1/4 cup of distilled vinegar to the drain line through the opening where the cap was removed. It's recommended you use regular distilled vinegar, as the increased acidity boots its cleaning property. if you find the smell of the vinegar foul, you can also use peroxide or hot water and a dash of dish soap. Using harsh chemicals such as bleach will corrode your drain pipe over the years.

Step 5. Let the solution sit for 30 minutes. Flush the pipe out with water to ensure everything is flowing freely and operating as it should. Put the cap back on.

Step 6. Repeat each month. Kill any harmful bacteria or buildup and make sure your system continues to operate at peak performance by cleaning your drain line every 30 days.


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