AC Leaking Water Inside? Causes and Fixes for Florida Homes
Finding a puddle near your indoor unit is stressful. An AC leaking water can soak drywall, stain ceilings and grow mold within days in Florida humidity. Fortunately, most leaks come from a few common causes, and many are quick to fix.
What to do right now
- Turn the AC off at the thermostat.
- Soak up the water with towels or a wet-dry vacuum.
- Check the drain pan under the indoor unit.
- Look for ice on the coil or the copper lines.
- Call (305) 333-8272 if water is coming through a ceiling.
5 common causes of an AC leaking water
1. Clogged condensate drain line
This is the most common cause. Algae and dirt build up in the drain pipe, so water backs up into the pan and spills over. A technician can clear the line and add a treatment to slow new growth.
2. Full or cracked drain pan
Older metal pans rust through over time. When that happens, water drips straight onto the floor or the ceiling below.
3. Frozen evaporator coil
Low airflow or low refrigerant can freeze the coil. When the ice melts, it overflows the pan. A dirty filter is a common trigger, so learn how often to change AC filter pads in Florida.
4. Failed condensate pump
Some systems use a small pump to move water outside. If it fails, the water has nowhere to go.
5. Poor installation
A unit that is not level, or a drain line with the wrong slope, can leak from day one. In that case, the fix is to correct the install.
Why Florida homes see more AC leaks
Our humid air means the AC pulls a lot of water out of the house every day. So, a small clog can turn into a big leak fast. A drain line flush at every tune-up helps prevent it.
How to prevent AC leaks
- Book a tune-up that includes a drain line flush.
- Change the filter on schedule.
- Ask about a float switch that shuts the AC off before it overflows.
- Keep the drain line exit outside clear of plants and mulch.
Water damage can lead to mold. Our mold prevention service and the EPA mold guide explain how to keep moisture under control.
AC leaking water right now?
We clear drain lines, replace pans and pumps, and fix frozen coils across South and Central Florida.
AC leaking water: frequently asked questions
Is it safe to run my AC if it is leaking?
It is best to turn it off until the cause is found. Running it can spread water damage or harm the system.
Can I unclog the AC drain line myself?
You can often clear the outside end with a wet-dry vacuum. However, if the leak returns, call a technician to clean the whole line.
Why is my AC leaking water but still cooling?
Usually the drain is partly clogged. The AC still cools, but the water cannot drain fast enough.
