Your AC’s condensate drain line is one of the most overlooked parts of the whole system, and a clogged one causes water backups, leaks, and even shutdowns. The good news: keeping it clear is simple. Here’s how it works.
What the Drain Line Does
As your AC cools, it pulls moisture out of the air. That water collects in a drain pan and exits through the condensate drain line. When algae and gunk clog that line, the water has nowhere to go, which means leaks, water damage, or an automatic shutoff.
How to Clean It Yourself
- Turn the system off at the thermostat and breaker.
- Find the drain line, usually a PVC pipe near the indoor unit, and locate the access cap.
- Clear the clog with a wet/dry vac at the outdoor end, or flush the line with a cup of distilled vinegar through the access point.
- Let it sit about 30 minutes, then flush with water to confirm it drains freely.
Prevent Future Clogs
Pouring a little vinegar through the line every couple of months during cooling season keeps algae from building back up.
Dealing With Repeat Backups?
If the line keeps clogging or you’re seeing water around the unit, there may be a bigger issue. Bearcat will clear it and check the whole system. See our AC maintenance services, or call (509) 891-5110.
