Why do I have to drain my AC so often?

Depending on the humidity in your space, you will need to drain your portable air conditioner as often as every 8 hours. To do this, the air conditioner sprays water from its condensate tank onto the condenser coil. As the condensate comes into contact with the hot condenser coil, it evaporates.

How do I unclog my AC drain with a shop vac?


  1. Turn off the power to your HVAC unit.
  2. Find your AC drain line.
  3. Push the stiff, thin brush into the end of the drain line.
  4. Attach the end of your wet/dry vacuum to the end of the AC drain line.
  5. After you’ve run the vacuum for about a minute, remove the wet/dry vac and head indoors.
  6. Locate the vent tee.

Is it safe to pour bleach down AC drain?

It’s going to corrode! Using bleach or vinegar can be especially risky if you think your AC drain line is clogged. If the drain line is clogged, the corrosive mixture will simply back up in your drain line and flow into your drain pan, which in turn can damage your evaporator coil.

How do I unclog my AC drain without a shop vac?

If you have a very stubborn clog that doesn’t come out with a shop vac and water, then you can try using a drain snake. Push the drain snake down into the drain line access near the air handler. Make sure the that the drain snake does not go towards your air handler or you could potentially damage the evaporator coil.

Why is my AC not draining water?

Proper maintenance is the best way to prevent most air conditioner malfunctions. However, it is normal for drain pipes to clog from time to time as sediment, limescale, dust, and debris fall into the drip pan. As the water moves through the pipe, the buildup can get stuck, causing the water not to drain.

How much does it cost to unclog AC drain line?

Clogged Drain Line 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.

How much vinegar does it take to pour down an AC drain?

How To Clean Your Drain Line

  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. If the vinegar will not go down the drain line, then it may already be clogged.
  4. Place the cap back on the drain line.

How do you unclog the AC drain line?

For that reason, we’re detailing two methods for unclogging your AC drain line — one for small clogs and one for large. Step 1. Turn off your HVAC system. Step 3. Remove the cleaning port cap. Step 4. Assess the clog. Step 8. Turn your HVAC system back on. Step 1. Turn off your HVAC system. Step 3. Remove the cleaning port cap.

How to know if you have a clogged AC drain?

Other signs of a clogged AC drain pipe include: Water flooding around the air handler unit. If your AC is not cooling or running at all due to a clogged AC pipe, the water safety switch would have been triggered preventing it from operating. A moldy smell throughout the house. If your condensate pan is full more often than not, you could be dealing with a potential clog.

How clogged AC condensate drain can create problems?

Once enough buildup accrues, the blockage will become too large and create a clog in the line , causing water to back up into the AC drain pan. When that condensate drain pan fills, the excess water will overflow and leak into your house, causing water damage issues that can quickly turn into costly home repairs.

Can vinegar Clean my AC drain line?

Add ¼ cup of distilled vinegar to the drain line through the opening where the cap was removed. It’s recommended you use regular distilled white vinegar , as the increased acidity boosts its cleaning properties. If you find the smell of vinegar foul, you can also use peroxide or hot water and a dash of dish soap.