If you see standing water in the drain pan, your drain line is probably clogged. Use a handheld or shop vacuum to remove the moisture. You can also use rags to soak up the water. At this point, you can clean the drain pan with soap.
Using warm water and soap, vinegar, or a general cleaning solution, flush the drain and allow it to sit for minutes.
How to Inspect AC Drain Pan and Condensate Drain Line. There are two methods to clean out your air conditioning drain line. Regularly cleaning your drain line can help your equipment run more efficiently. Water that cannot escape through the drain can cause damage to your air.
Every home with a central AC unit has a drain line to carry condensation outside the home. If you always using a vacuum to clean your AC drain then something like this could be a solution for you. To prevent this from happening, pour a cup of bleach in the access opening in the drain line near the AC unit.
Your air conditioner cools your home, but it also dehumidifies the air.
There are various ways to clean out an air conditioner condensate drain , and two popular methods are pouring white vinegar or bleach down the line to clear .