AC Leaking Water Inside?
Water around your indoor unit is never good. Here's what to check before it causes damage.
First: Turn Off Your AC
To prevent water damage and electrical issues, turn off your AC at the thermostat while you investigate. Place towels around the unit to catch any additional water.
Check the Drain Line
Your AC removes humidity from the air, and that water has to go somewhere. It drains through a PVC pipe, usually to the outside or a floor drain. If this line clogs with algae or debris, water backs up and overflows the drain pan.
The Fix
Find the drain line (white PVC pipe near your indoor unit). Try flushing it with distilled vinegar or use a wet/dry vacuum on the outdoor end to clear the clog. For severe clogs, you may need a professional to clear it.
Inspect the Air Filter
A dirty filter restricts airflow over the evaporator coil, causing it to freeze. When the ice melts, it can overwhelm the drain pan—especially if it's already partially clogged.
The Fix
Check your filter. If it's dirty, replace it. Let the system thaw (a few hours with the AC off but fan on AUTO), then restart. If the coil was frozen, you'll know—there will be a lot of water as it melts.
Check the Drain Pan
The drain pan sits under your evaporator coil to catch condensation. Over time, these pans can rust, crack, or become misaligned—allowing water to leak out instead of draining properly.
The Fix
Visually inspect the pan for cracks or rust holes. If it's damaged, it needs to be replaced. If it's just misaligned, carefully reposition it. This may require removing the access panel.
Still Leaking?
Could be a refrigerant issue (low charge causes freezing), a damaged coil, or a more serious drain system problem. These need a professional diagnosis.