AC Repair
Why Is Water Leaking From My Air Conditioner?
2026-08-21 4 min readBy Launch Air & Heating
A puddle by your air handler is a warning sign. Learn the causes of AC water leaks and how to stop the damage.
Why Your AC Is Leaking Water
Your AC naturally produces condensation, but it should drain away — not pool on your floor.
Clogged condensate drain line
The #1 cause in Florida. Algae and mold clog the line, backing up water. This is extremely common in our humid climate.
Full or cracked drain pan
An old or rusted pan can overflow or leak.
Frozen coil thawing
A coil that froze and melted can overwhelm the drain.
Disconnected drain line
A line that's come loose will dump water directly into your home.
Prevent it
Regular maintenance keeps the drain line clear. Many systems have a safety float switch that shuts the unit off before water damage occurs.