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HVAC
Why is my AC leaking water inside the house?
Water dripping from your indoor AC unit means the condensate drain is blocked or the coil has frozen. Here's what to do.
Most common causes
- 01Clogged condensate drain line (most common)
- 02Frozen evaporator coil thawing
- 03Disconnected drain pan
- 04Dirty filter restricting airflow causing coil freeze
What to do right now
1
Turn off the AC system at the thermostat2
Place towels or a bucket to contain water3
Check and replace the air filter if dirty4
Find the condensate drain line (typically a white PVC pipe near the air handler) — pour a cup of diluted bleach down the access port if accessibleWhen to call a professional
Call if: water is coming out in significant quantity, you can't access the drain line, or the issue recurs after cleaning the drain.
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