My AC Is Leaking Water

Water leaking from your AC is usually caused by a clogged condensate drain line, a frozen evaporator coil, or a failed condensate pump. An HVAC technician can clear the line and check the system. If water has damaged your ceiling or walls, you may also need a water damage contractor.

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What to Do Right Now

Water pooling around the indoor or outdoor AC unit, water dripping from the ceiling near the air handler, or the AC shutting off unexpectedly.

Turn off the AC to prevent further water damage
Check the condensate drain line for visible clogs — a wet/dry shop vac can clear it from the outside
Place towels or a bucket under the leak
Check if the air filter is extremely dirty — a clogged filter can cause the coil to freeze
Take photos of any water damage for insurance

What Not to Do

✗Don't pour bleach or chemicals into the drain line without knowing the system type
✗Don't ignore water near electrical components — turn off power if water is near the air handler
✗Don't restart the AC if the coil was frozen until it has fully thawed

When to Call a Professional

Call an HVAC technician if the drain line can't be cleared, if the coil freezes repeatedly, or if water has damaged ceilings or walls. A water damage contractor may be needed if the leak has been ongoing.

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FAQ

My AC Is Leaking Water — Questions

The most common cause is a clogged condensate drain line. Florida's humidity produces large amounts of condensation, and algae or debris can block the line, causing water to back up and overflow the drain pan.