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How to Clean an AC Drain Line
Blog
July 8, 2024
March 17, 2026

How to Clean an AC Drain Line

Your AC system removes humidity from the air and expels the resulting condensation through a drain line. When that line gets clogged, it can cause water damage and system shutdowns.

Signs of a Clogged Drain Line

Water pooling near the air handler, a musty smell, or your system shutting off unexpectedly are all signs the drain line may be blocked.

How to Clean It

Locate the PVC drain line near your indoor air handler. Remove the cap and pour a cup of white vinegar or a bleach-water mixture into the line. Let it sit for 30 minutes, then flush with water.

When to Call a Professional

If the clog is severe or you’re not comfortable doing it yourself, call Air & Energy at 941-778-0773. We can clean the line and ensure your system is running properly.

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