What happens if condensate line is clogged?

A Clogged Line Will Freeze Your AC System





A clogged condensate drain line will trap water in your air conditioner. As a result, the evaporator coil will eventually turn to ice. The moisture in the drain line can also freeze, which will cause your air conditioner to turn off.

How do you clear a clogged condensate line?

How to Unclog Your AC Condensate Drain Line

  1. Turn off your air conditioner. …
  2. Remove the cap from the pipe. …
  3. Check to see if there is any debris stuck in the drain. …
  4. Remove any visible debris and retest for proper drainage. …
  5. Pour in Vinegar. …
  6. Replace the drain cap. …
  7. Remove the drain cap.

Why does my AC condensate line keep clogging?

As indoor air circulates through the evaporator coil, dust, dirt and other airborne particles can be trapped by moisture. Build-up of this debris can be carried off as condensate drains from the coil. Over time, it can become trapped in your condensate drain line, causing blockage.

How do you know if your condensate line is clogged?

Signs of a Clogged A/C Drain Line

  1. Dripping water. If there’s water dripping in or around your A/C, then it’s a sign that the drain pipe is backed up. …
  2. Full drip pan. Even if you don’t see dripping water, check your A/C regularly for signs of a clogged AC drain pipe. …
  3. Mold. …
  4. Water damage.




How much does it cost to unclog an AC drain line?

Clogged Drain Line

If the condensate drain line becomes clogged, water can back up and overflow into your home, resulting in a messy leak. To flush the line or repair it can cost anywhere from $75-$250. In the case that the evaporator coil needs replacing, you are would pay between $400 to $950.

Can you snake a condensate line?

You can snake a clogged A/C drain line to remove blockages. Traditional plumbing snakes usually cannot navigate the 90* turns of PVC elbows, but a smart snake can.

What happens if AC does not release water?



If the water freezes into ice rather than dripping out, the air conditioner likely needs servicing. If there is no water dripping out, the drains may be blocked, which also likely requires professional service.

Why is my AC not draining water?

The most common reason for a blockage is dirt and debris buildup inside the pipe. Another possibility is a clog in the drain line caused by dust or debris from the condensate. You can try flushing the line with bleach or suck the clog using a wet/dry vacuum to unclog it.

Where do you pour vinegar in your air conditioner?

All it takes is 1/4 cup of vinegar, and a couple minutes of your time:

  1. Find your drain line. It should be near your drain pan, located near the air handler. …
  2. Remove the cap.
  3. Pour in 1/4 cup of distilled vinegar. …
  4. Place the cap back on the drain line.


Is bleach or vinegar better for AC drain line?

We recommend using vinegar instead of a bleach solution because bleach can be harmful to your AC system if your drain line has copper tubing. Using vinegar will not damage your system. Spilling bleach can also ruin carpet or clothing, whereas vinegar will just leave a strong odor.