Dump Trucks, Bulldozers and Cranes, Oh My!

Unclog An A/C Unit Condensate Line At Your Small Business

If debris becomes clogged inside of the condensate line that is connected to the window air conditioning unit at your small business, you may notice puddles of water on the floor near where the unit is located. The condensate line is responsible for removing condensation from the evaporator coil and depositing it outdoors. Learn how to unclog this vital part with the following steps:


  • towels
  • rotating fan
  • rubber gloves
  • screwdriver
  • mild detergent
  • water
  • tube brush
  • bleach
  • white vinegar
  • wet/dry vacuum cleaner
  • duct tape

Dry The Floor And Unclog The Interior Section Of The Line

Turn off the power to the air conditioner and put on a pair of disposable gloves. Use towels to dry the floor. If some parts of the floor are saturated, set up a rotating fan next to the air conditioner so that the floor dries in a shorter amount of time. Use a screwdriver to loosen and remove the screws that are secured to the condensate line. Pull the condensate line away from the air conditioner. Dip the end of a tube brush in soapy water. Scrub the line to remove debris stuck on the interior walls.

Use A Vacuum Cleaner And Add Bleach Or Vinegar

If you are having difficulty removing some of the debris that are inside of the line, hold the hose attachment on a vacuum cleaner that is designed for wet and dry substances over the end of the line. Turn the vacuum cleaner on high for a couple minutes. Remove the hose and pour a small amount of bleach or vinegar into the line while holding the end of the line perpendicular with the floor so that it doesn't spill out.The bleach or vinegar will kill germs inside of the line and will prevent mold or mildew from forming.

Insert the screws through the end of the line and the air conditioner and tighten them with a screwdriver.

Unclog The Other End Of The Line

Pay attention to where the condensate line goes through the wall of your business' building. Go outside and locate the end of the line. Gently pull it away from the building. Use the tube brush and soapy water to remove any material that is stuck in the interior. Suck up any debris or liquid inside of the line with the vacuum cleaner's hose. Place the end of the line back in the proper spot, next to the building. 

Turn On The Air Conditioner And Keep It Maintained

Turn on the air conditioner to make sure that it is working properly. Change the filter in the unit several times a year and wipe dust off of the unit's interior components to prevent a blockage in the condensate line in the future. 

If there are still problems with your commercial airconditioning, contact a company like Robinson Heating & Cooling Inc for assistance. 

About Me

Dump Trucks, Bulldozers and Cranes, Oh My!

Welcome to my blog. I'm Kara Montgomery. My entire life, I have had an obsession with construction. When I was a little girl, I had a whole set of construction equipment toys I'd play with. As I got older, I read so many books on construction. Even though I didn't follow construction as a career path, this has continued to be something I'm interested in and I thought it'd be fun to create a little blog that covers various construction topics. There is really no specific construction topic this blog will cover, so anyone who has an interest in the construction industry will find something of use.


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