A mini split leaking water inside is usually caused by a clogged drain line or dirty filter, a kinked or blocked drain hose, an indoor unit that isn't level, or a frozen coil that's melting. Turn the unit off, wash the filters and check the drain hose outside. If it still drips, call before water damages the wall. Pinellas Cooling & Heating fixes mini split leaks in Pinellas Park.
The indoor unit of a mini split removes moisture from the air, collects it in a small tray and drains it through a thin hose, usually outside. Because that drain is small, it clogs faster than a central AC drain, especially in Florida's humidity.
| Cause | Signs |
|---|---|
| Clogged drain line | Water drips from the bottom of the indoor unit |
| Dirty filters | Weak airflow; can lead to a frozen coil |
| Kinked, crushed or buried drain hose | Little or no water from the hose outside |
| Unit not level | Water runs to one end and drips |
| Frozen coil melting | Ice on the coil or lines, then dripping |
| Failed condensate pump | Where a pump is fitted, it's silent or the reservoir is full |
Most often, yes. Algae and slime grow in the warm, wet drain line and block it. A hose that's too flat or sags lets water sit and clog faster. Some units drain through a small condensate pump, which can fail or clog. A technician can clear the line, fix the slope and test the pump.
AC not cooling right now? Call (727) 761-8873 (answered 24/7) or get a free quote.
Possibly. If the coil freezes and then melts, it can overflow the tray. Ice usually means low airflow (dirty filters or blower wheel) or a low refrigerant charge from a leak. A leak needs to be found and repaired, not just topped off.
Yes. Water running down inside a wall can soak drywall and insulation and lead to mould. Act quickly, even if the drip seems small.
Call if water keeps dripping after the safe checks, you see ice, or the wall is wet.
| Repair | Typical cost (market estimate) | Source |
|---|---|---|
| Drain clearing and pump service | $150–$350 | Protek (regional) |
| Deep cleaning, coil and blower wheel, per indoor unit | $250–$450 | Protek |
| Leak repair and recharge, valves, boards | $400–$800 | Protek |
Estimates, not quotes. See mini split repair cost for more.
See ductless mini splits in Pinellas Park, or our guide to a mini split not cooling.
Sources: Protek, mini split repair cost page (hvac.protekps.com). Prices are market estimates, not quotes.
Usually a clogged drain or dirty filter, a kinked or buried drain hose, an indoor unit that isn't level, or a frozen coil melting.
Yes. Call (727) 761-8873 any time.
Free estimates are for new systems and replacements. Repairs start with our $125 diagnostic, credited toward the repair if you go ahead.
We size, install and clean single-zone and multi-zone mini splits for garages, additions, Florida rooms and homes without ductwork. Each zone gets its own temperature control.
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Our twice-a-year tune-ups clean the coils, flush the drain line and test capacitors and refrigerant. That catches small problems before they become midsummer breakdowns.
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Our licensed technicians fix AC units that are not cooling, leaking, freezing up or tripping breakers, on all major brands. We find the real cause and explain the price before any repair starts.
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