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AC Leaking Water Inside
in Cape Coral, FL
Your AC pulls a lot of water out of Cape Coral's humid air every day, sometimes over 20 gallons in summer. That water drains out through a condensate line, and when that line clogs, the water backs up and drips inside. Left alone, a leaking air handler can damage ceilings, drywall, and flooring, and it creates conditions for mold growth.
Quick Answer
Water leaking from an indoor AC unit in Cape Coral usually means the condensate drain line is clogged with algae. The system pulls gallons of moisture out of the air every day in this climate, and that water has to go somewhere. A technician can clear the drain line and treat it to slow regrowth. Don't ignore it because water damage to ceilings and drywall adds up fast, so call (239) 360-1455 when you see it.
Telltale Signs
Warning Signs to Watch For
- Water stains or wet spots on the ceiling below or around the air handler
- A puddle on the floor directly under the indoor unit
- The AC shuts off by itself and won't restart without resetting it
- A musty or moldy smell coming from the vents
- The drain pan under the air handler is full of standing water
Root Causes
What Causes AC Leaking Water Inside?
Clogged Condensate Drain Line
Cape Coral's year-round heat and humidity means your AC removes moisture from the air almost every hour it runs. That moisture flows out through a PVC drain line, and in this climate, algae and slime grow inside that line fast, eventually blocking it completely.
The Fix
Drain Line Flush and Treatment
A technician uses a wet vac or pressurized air to clear the clog, then flushes the line with a solution that slows algae regrowth. Some technicians also install a float switch that shuts the system off before water overflows.
Cracked or Rusted Drain Pan
The drain pan sits under the evaporator coil and catches condensation. In units that are 12 to 15 years old, the pan can crack or rust through, especially in homes near the water in areas like Cape Harbour where salt air speeds up corrosion.
The Fix
Drain Pan Replacement
A technician removes the old pan and installs a new one, checking the seals and slope to make sure water flows toward the drain line and not over the edge. A warped or improperly sloped pan causes pooling even when it isn't cracked.
Frozen Coil Melting Off
When the evaporator coil freezes due to low refrigerant or a clogged filter, it eventually thaws. A large amount of water melts off at once, often faster than the drain pan and line can handle, and the overflow drips inside the home.
The Fix
Coil Freeze Root Cause Repair
A technician identifies and fixes the underlying reason the coil froze, whether that's low refrigerant, a dirty coil, or blocked airflow, so the freeze-and-thaw cycle stops happening.
Self-Diagnosis
Which Cause Applies to You?
Check the signs you're observing to narrow down the likely root cause before your inspection.
| What You're Seeing | Clogged Condensate Drain Line | Cracked or Rusted Drain Pan | Frozen Coil Melting Off |
|---|---|---|---|
| Drain pan is full and drain line outlet outside has no drip | |||
| Water comes from under the pan, not over its edge | |||
| Large amount of water appeared suddenly after the unit ran for hours frozen | |||
| AC trips the float switch and shuts off repeatedly | |||
| Rust stains visible on or around the drain pan |
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