How To Clean Ac Drain Line In Attic. Since the ac system is typically located in the attic, it's very close to the plumbing vent that exits through your home's roof and some builders will simply tie the ac drain line into the plumbing vent (which rarely clogs). That helps with any mildew growth, keep you running clean.
When the drain line backs up it can trigger a sensor that turns off the hvac system until the line is cleared. Distilled vinegar , bleach, or drain line buildup remover; If you have an indoor air handler in your attic or utility closet, you'll need to find the condensate pan.
In most cases, the ac drain line clog will occur farther down and you’ll need to do a little more work.
Wherever there is moisture, mold or algae will start to grow. Repeat this monthly for the best results. What causes a clogged ac drain line? Push the stiff, thin brush into the end of the drain line.