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How To Spot And Fix Mini Split Condensate Drain Line Clog

How To Spot And Fix Mini Split Condensate Drain Line Clog

How To Spot And Fix Mini Split Condensate Drain Line Clog


A ductless mini split is a great piece of technology when it comes to heating and cooling your home or business. You should always make sure you keep your filters clean, but another thing you should keep an eye out for is a clogged condensate drain line. This is a very common issue for ductless mini split, and one that you can hopefully take care of on your own.

If you are having any trouble unclogging your drain line, you can always have the professionals come out and help. Give Compass Heating and Air Conditioning Inc. a call at (630) 504-8688, or click on the button below to contact us online!


What Is Your Condensate Drain Line?

Inside your ductless mini split are coils that produce condensation in the process of cooling the air. This condensation goes into a small pan that drains into a line that runs outside. This line is a small piece of PVC tubing.

Over time this line can get clogged with dirt and debris. This then stops the condensation from draining, and builds up in your system.

Read More: How Often Should My Mini Split Be Cleaned?

How Do You Know If Your Condensate Line Is Clogged?

A Leaking Ductless Unit Is A Sign Your Line Is Clogged

The easiest way to tell if your condensate drain line is clogged is a leak in your mini split. If the condensation has nowhere to drain, then it will start to drip out of the front of your system. This could also be a sign that your system is dirty and the coils are freezing and melting.

If you look at the condensate pan, you will be able to see if there is a buildup of water. If you see this, now you know it’s time to take a look at your drain line.

How To Unclog Your Drain Line

There are a few ways to unclog your drain line, but we should first mention that if you don’t feel comfortable in this process, you should call a professional to do it.

There are a few ways you can unclog your drain line:

  • Using A Shopvac
  • Using A Snake
  • Using An Unclogging Tool

Using A Shopvac

The first way we would suggest is using a wet/dry shopvac. You will want to find a vacuum the size of your outside drain line and attach the hose. From here, you can turn on your vacuum and start sucking out the clog.

You’ll want a shopvac with decent power, hopefully 6 horsepower. If your line is clogged, but there is still a LITTLE bit of water getting through, you may want to use a little cleaner solution in your drain line.

You’ll remove the front panel and filters of your mini split, and slowly pour the cleaning solution into your drain. This combined with the shopvac running should suck the clog out, and clean your drain line.

Read More: How To Get Central Air In Your Home Without Ducts

Using A Snake

You could also use a snake to try and clean out the clog. This is used a lot in plumbing, cleaning out a clogged drain in your bathroom or kitchen. You could also use a snake in this situation to clean out the clog.

The trouble here is having a snake long enough to clean the clog. You may have a very long drain line in certain situations, and it may require a long snake that you just don’t have. These 25 foot long snakes can cost around $60 to start, with the price going up from there.

Using An Unclogging Tool

There are products sold that are made specifically for unclogging a drain like this. They use compressed air or pressurized water to push the clog out of the drain. These can vary on how effective they are based on the power of the tool, and the bends in your line. Sometimes these tools will simply not have enough pressure to unclog the drain.

If these tools aren’t working properly, it’s time to call the professionals.


Preventing Problems With your Mini Splits

How To Prevent Problems With Your Mini Split

AC, Ductless, and Furnace Repair in Pingree Grove

Call Compass Heating and Air Conditioning Inc. for AC, ductless, and furnace repair in Pingree Grove, IL homes and businesses. With more than a decade of helping keep Fox River Valley customers safe and comfortable, we’re here to help you, too. Call us any time at (630) 504-8688. Or, you can schedule your appointment online.

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