Is Your AC Acting Up?

Check these things first — most issues have a simple fix you can do right now. If it's still not right, we're one call away.

Call 727-365-8461

Serving Clearwater, St. Pete, Largo, Dunedin, Safety Harbor & all of Pinellas County

How to use this guide: Click your symptom below. We'll walk you through a quick check — things you can safely do yourself in 2 minutes. If those steps fix it, great. If they don't, the problem is deeper and you need a licensed tech. We'll tell you exactly when to call and what to tell us when you do.

Common AC Symptoms

Tap a symptom to see what to check

🌡️

AC is running but the house isn't cooling

System sounds on, but it's still warm or hot inside

1
Go outside and check the outdoor unit. Is the fan on top spinning? Is it running at all?
2
If the outdoor unit is NOT running: Go to your breaker box and find the breaker labeled AC or Condenser. Flip it all the way OFF, then back ON. Wait 5 minutes and check again.
✓ Fixed Outdoor unit came back on after the breaker reset and the house is cooling? You're good. Keep an eye on it — if it trips again, there's an underlying electrical issue.
Call Us Reset didn't bring the outdoor unit back, breaker trips again, or unit is running but still no cooling — turn it off and call 727-365-8461.
⚡

Nothing is running at all — completely dead

Thermostat blank, no sound, unit completely off

1
Check the thermostat batteries. If the screen is blank, pop it off the wall and replace the batteries first. Simple fix, very common.
2
Check the breakers. Go to your breaker box. Find the breakers labeled Air Handler and Condenser (or AC). If either is tripped (middle position), flip it OFF then back ON — once only. If it trips again immediately, stop.
3
Check the safety float switch. Go to your air handler (attic, closet, or garage). Look at the front — there's a small plastic cup or tray with two wires going into it. That's your float switch. If there's water sitting in it, that's what shut your system off. The drain line is clogged and the switch tripped to protect your home from a flood.
4
If there's water in the float switch: You can carefully remove the water with a towel or wet vac to get the system running temporarily — but the drain line needs to be properly cleaned or it will fill right back up.
✓ Temporary fix Got the water out and the system came back on? Good — but call us to clean the drain line properly. A clogged drain that overflows can destroy ceilings and drywall.
Call Us Breaker trips again, can't get water out of the float switch, or system still dead after all three checks — call 727-365-8461. Tell us which step it got stuck on.
🧊

Ice or frost on the unit or copper lines

Frozen coil, iced-up lines, system freezing over

1
Shut the system off immediately. Running a frozen AC damages the compressor — the most expensive part to replace. Switch thermostat to OFF or FAN ONLY right now.
2
Check your air filter. Pull it out. If it's gray, clogged, or you can't see light through it — that's likely your cause. Replace it before restarting.
3
Go outside and check the outdoor unit. Is the fan on top spinning? If the fan is not running, that's a mechanical issue that needs a tech — don't restart the system.
4
Let it thaw — 2 to 4 hours. Run on FAN ONLY to help it thaw faster. Once all ice is gone, restart in COOL mode and watch for 30 minutes.
✓ Fixed New filter, fully thawed, outdoor fan running, and cooling normally now? You're good. Keep an eye on it.
Call Us Outdoor fan not running, ice returns after thawing and new filter, or still not cooling — you may be low on refrigerant. Turn it off and call 727-365-8461. Low refrigerant requires a licensed tech to verify and recharge.
🔊

Banging, rattling, squealing, grinding, or electrical noises

Any unusual sound from the indoor unit or outdoor unit

1
Turn the system off. Any mechanical noise — banging, grinding, squealing, clanking, or electrical buzzing — means something is wrong inside. Running it makes it worse.
2
Call us right away. Note which unit the noise came from (inside or outside) and describe the sound when you call — we can often narrow it down before we arrive.
Call Us Shut it off. Call 727-365-8461. Noises don't go away on their own — they get worse and more expensive the longer the system runs.
💧

Sweating vents or house feels sticky and humid

Moisture on registers, clammy air, humidity above 60%

1
This is a Florida moisture problem — not just an AC problem. High indoor humidity and sweating vents go hand in hand and both need proper diagnosis.
2
Read our dedicated guides below. We've written detailed explanations of exactly why this happens in Florida and what the real fixes are.
Learn More
If you've read those and still need help — call 727-365-8461. Humidity control is one of our specialties.
💸

Electric bill spiked — AC seems to run all day

System never shuts off, energy bills higher than normal

1
Check your filter. A clogged filter makes the system work 20–30% harder and run longer. Replace it and watch your runtime over the next day or two.
2
Check your thermostat setting. Florida homes during peak summer often can't get below 76–78°F on the hottest afternoons without running constantly. Make sure you're setting a realistic target temp.
3
Clean the outdoor coil. The fins on the outdoor unit clog with dirt, grass, and cottonwood. Gently rinse from the inside out with a garden hose — not a pressure washer. A dirty coil can add 15–20% to your bill.
4
Check your home's envelope. Gaps under doors, unsealed attic hatches, and old weatherstripping let Florida heat pour in faster than any AC can fight it. A quick walk-around often reveals the culprit.
Call Us Filter, thermostat, and coil cleaning didn't reduce runtime? A failing capacitor, dirty evaporator coil, or low refrigerant are the usual culprits — none of which you can check yourself. Call 727-365-8461. A tune-up typically pays for itself in 1–2 months of savings.
💡

We help hundreds of customers avoid a service call every year.

A simple breaker reset, a new filter, or clearing the float switch — things you can do yourself in 5 minutes — save our customers hundreds or even thousands of dollars a year. That's exactly why we built this page. If the steps above fix it, great. If they don't, then you truly need a tech and we'll be there.

Action Air — saving you money, not charging you for a trip you don't need. If we helped, we'd love a Google review. ⭐

Still not fixed? Don't wait.

In Florida, a failed AC isn't just uncomfortable — it can become dangerous fast. We service all of Pinellas County, same day when available.

📞 727-365-8461

What Our Customers Say

Real reviews from Tampa Bay homeowners

5.0
★★★★★
Google reviews — Clearwater, FL
★★★★★

"AC went down at 2am. Repaired by Mike from Action Air before 2pm the same day. Professional, knowledgeable, and got us back up fast in the middle of summer."

Charles H.
August 2025
★★★★★

"The Action Air team did an excellent job installing our new Lennox heat pump. Everything was explained clearly and the installation was clean and professional."

Andrew T.
August 2025
★★★★★

"Angel and Isaiah did a great job — A job well done. Clean, on time, and they explained everything they did."

Michael M.
August 2025
★★★★★

"Dan was very informative and communicated well throughout the whole process. Great experience from start to finish."

George R.
August 2025
★★★★★

"Nothing but great comments for the installation crew headed by Angel. Professional, clean work, and they took their time to make sure everything was right."

Kenneth C.
August 2025
★★★★★

"Angel and Elijah were informative, knowledgeable and extremely helpful. Walked me through what they were doing and why. I'll be using Action Air going forward."

Barbara O.
August 2025
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