Understanding Where the Water Is Coming From
Before assuming the worst, it helps to note exactly where the water is showing up. Water dripping from the indoor air handler, usually located in a closet, attic, or utility space, points toward the condensate system or the evaporator coil. Water pooling around the outdoor condenser is often just normal condensation, especially on humid Savannah afternoons, but a large puddle or constant drip can still be worth checking.
Homeowners sometimes notice a musty smell along with the leak, which can mean water has been sitting in the drain pan or line for a while. Catching a leak early, before it affects flooring, ceilings, or nearby drywall, generally keeps the repair simpler and less disruptive.
Common Reasons an AC Leaks Water
These are the factors a technician typically checks first when diagnosing a leaking air conditioner.
Algae, dust, and debris can build up inside the drain line over time, especially in humid climates, causing water to back up and overflow instead of draining outside.
Restricted airflow or low refrigerant can cause the coil to ice over; when it thaws, it can produce more water than the drain pan is built to handle at once.
Older drain pans can corrode or crack, allowing water to leak out from underneath the unit instead of draining through the intended line.
If the indoor unit isn't level, condensate can pool on one side of the pan and spill over instead of flowing toward the drain outlet.
A clogged filter reduces airflow across the coil, which can lead to freezing and eventual leaking once the ice melts faster than the drain can handle.
What to Do Depending on the Situation
The right next step depends on how the leak is showing up and whether it seems to be getting worse.
Small, Occasional Drip
If you're only seeing a small amount of water occasionally, try changing the air filter and clearing visible debris from the drain line opening, then monitor it for a few days.
Steady Leak Or Growing Puddle
A steady leak or a puddle that keeps growing usually means the drain line is blocked further down or the pan has a crack, and it's a good time to request a diagnostic visit.
Ice On The Coil Or Lines
Visible ice on the indoor coil or refrigerant lines can point to an airflow or refrigerant issue, and running the system while it's frozen can make things worse, so it's best to turn the system off and have it checked.
Quick Checks You Can Do Before Calling
A few simple checks can help narrow down the cause before a technician arrives.
Not Sure If It's a Simple Fix or Something Bigger?
A leaking AC can sometimes be cleared in one visit, and other times it points to a larger issue with the coil or installation. Request a free quote and a technician can walk you through the likely cause and your options.