If your mini split is not cooling, first check that it's in Cool mode (not Fan, Dry or Heat), the setpoint is below room temperature, the remote batteries work, the filters are clean and the outdoor unit isn't blocked. If those are fine, a refrigerant leak, a failed sensor or a board fault is likely. Pinellas Cooling & Heating services all major mini split brands in Pinellas Park.
Ductless mini splits are reliable, but in Florida's humidity they need regular cleaning, and a few simple settings can make one look broken when it isn't.
| Cause | Signs |
|---|---|
| Wrong mode | Dry, Fan or Heat selected; air isn't cold |
| Setpoint too high | Unit runs but barely cools |
| Dirty filters | Weak airflow; dust on the filter screens |
| Dirty coil or blower wheel | Weak airflow, musty smell, dark specks in the vanes |
| Blocked outdoor unit | Leaves, plants or debris around the unit |
| Refrigerant leak | Cool but not cold air; ice on the lines |
| Sensor or board fault | Blinking lights or an error code |
| Power issue | Indoor unit on but outdoor unit silent |
Often, yes. In humid Florida air, dust and moisture combine on the coil and blower wheel inside the indoor unit, and mould can grow. That chokes airflow and cooling. Washing the filters is a homeowner job; cleaning the coil and blower wheel properly needs the unit bagged and disassembled. See our guide to mini split repair and cleaning cost.
AC not cooling right now? Call (727) 761-8873 (answered 24/7) or get a free quote.
A blinking light or a code on the display is the unit reporting a fault. Note the colour, the number of blinks and the pattern before you call. A technician from our ductless mini split service in Pinellas Park can read the code and fix the fault.
Refrigerant doesn't get used up. If it's low, there's a leak, usually at a flare fitting or the coil. Signs include cool-but-not-cold air, ice on the copper lines or indoor coil, and a unit that runs constantly. The fix is to find and repair the leak, then recharge; topping it off without a repair only delays the problem. Refrigerant work requires an EPA-certified technician.
We service all major mini split brands. Our $125 diagnostic is credited toward the repair if you go ahead.
| Repair | Typical cost (market estimate) | Source |
|---|---|---|
| Drain clearing, sensors, remote issues | $150–$350 | Protek (regional) |
| Deep cleaning, coil and blower wheel, per indoor unit | $250–$450 | Protek |
| Leaks, valves, circuit boards, fan motors | $400–$800 | Protek |
Estimates, not quotes. More detail is in our mini split repair cost guide.
See ductless mini splits in Pinellas Park.
Sources: Protek, mini split repair cost page (hvac.protekps.com); US EPA, Section 608 refrigerant handling requirements (epa.gov). Prices are market estimates, not quotes.
Check the mode, setpoint, remote batteries, filters and outdoor unit first. If those are fine, a refrigerant leak, dirty coil or a sensor or board fault is likely, and a technician should take a look.
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.
Schedule an AC tune-up in Pinellas Park →
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.
Book AC repair in Pinellas Park →Licensed, local, and the price explained before any work starts.
