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HVAC Tips and Guides
Practical answers from a licensed Pinellas County HVAC contractor. If your system is broken right now, skip the reading and call (727) 477-3256.
Articles
Why Is My AC Running But Not Cooling?
Your AC is running but the house is warm. Here are the most common causes, what you can check yourself, and when to call a technician in Pinellas County.
Why Won’t My AC Turn On?
AC completely dead? Walk through the most common reasons your air conditioner will not start, from thermostat issues to tripped breakers.
Why Is My AC Leaking Water Inside?
Water pooling around your indoor AC unit is almost always a clogged drain line. Here is why it happens in Florida and what to do.
AC Making a Strange Noise? What Each Sound Means
Rattling, buzzing, screeching, banging, hissing — each AC noise points to a different problem. Here is what each sound means.
Why Is My AC Freezing Up?
Ice on your AC lines or coil means something is wrong with airflow or refrigerant. Here is why it happens and how to thaw it safely.
AC Keeps Turning On and Off? What Short Cycling Means
An AC that starts, runs for a few minutes, shuts off, and restarts is short cycling. Here is what causes it.
AC Blowing Warm Air? Here Is Why
If your AC is on but blowing warm air, the cause is usually a thermostat setting, a dirty filter, or a refrigerant issue.
Why Does My AC Smell Bad? What Each Odor Means
Musty, burning, rotten — each AC smell points to a different problem. Some are maintenance items. One is a safety emergency.
Why Are Some Rooms Hotter Than Others in a Florida Home?
One room is warm while the rest of the house is fine. The cause is almost always ductwork, not the AC itself.
AC Barely Blowing Air? Weak Airflow Causes
Weak airflow from your AC vents usually means a filter, duct, or blower problem. Here is how to tell which one.
House Still Humid With the AC Running in Florida?
Your AC should remove humidity, not just cool the air. If the house feels clammy at 74 degrees, something is wrong.
AC Not Working? 7 Things to Check First
Before you call for AC repair, walk through these 7 checks. Most take under a minute, and one fixes the problem about a third of the time.
How to Tell If Your AC Drain Line Is Clogged
Water near your air handler, the system shutting itself off, or a musty smell — all signs of a clogged condensate drain line.
What Is the Safety Switch That Shut Off My AC?
If your AC stopped running and there is water in the drain pan, the float switch did its job. Here is what to do next.
Get Your AC Ready Before Summer in Florida
A spring checklist for your AC: replace the filter, rinse the condenser, flush the drain line, and test the system before you need it.
How to Clean Your Outdoor AC Unit
Rinsing the condenser coil takes 15 minutes with a garden hose. Here is how to do it right without damaging the fins.
How to Thaw a Frozen AC Coil Safely
Ice on your AC coil needs to melt before the system can work again. Here is how to thaw it without damaging anything.
How Often to Flush Your AC Drain Line in Florida
Monthly during the cooling season. A cup of vinegar down the cleanout takes 30 seconds and prevents the most common AC service call in Florida.
How to Clear a Clogged AC Drain Line
A clogged AC drain line is the most common service call in Florida. Here is how to clear it yourself with vinegar or a wet/dry vacuum.
Where Is Your AC Breaker and Disconnect in a Florida Home?
Two power shutoffs control your AC — the breaker in the electrical panel and the disconnect box outside. Here is where to find both.
Do You Really Need an AC Maintenance Plan?
The honest answer: it depends on your system, your habits, and your willingness to do basic upkeep yourself.
Salt Air and Your AC in Coastal Pinellas
Salt air corrodes AC condenser coils faster. If you live near the beach in Pinellas County, here is the rinse schedule.
What Size Air Filter Do I Need?
How to read the size on your AC filter frame, understand nominal vs actual sizing, and find where the filter goes in your system.
Which Way Does the Air Filter Arrow Point?
The arrow on your AC filter points toward the blower — toward the direction the air flows. Here is how to get it right every time.
How Often to Change Your AC Filter in Florida
The 90-day interval on the filter box assumes dry climates and light use. In Florida, 30 to 60 days is realistic.
How to Tell If Your AC Filter Needs Changing
Two simple tests to check if your AC filter needs replacing — the light test and the visual test. Takes 30 seconds.
MERV Ratings Explained: Why Higher Is Not Always Better
A MERV 13 filter sounds better than a MERV 8, but on the wrong system it causes more problems than it solves.
Can You Run Your AC Without a Filter?
Running your AC without a filter lets dust coat the evaporator coil, clogs the drain line faster, and degrades indoor air quality.
Is a More Expensive AC Filter Always Better?
A $25 filter is not automatically better than a $5 one. What matters is whether it matches your system.
High Electric Bill? Your AC Might Be the Reason
A sudden spike in your electric bill often points to your air conditioner. Here are the AC problems that drive up energy costs.
Does Setting the Thermostat Lower Cool Faster?
Setting your thermostat to 60 does not cool the house faster. The AC runs at the same speed regardless.
Should You Close Vents in Unused Rooms?
Closing vents in unused rooms does not save energy. It increases duct pressure, causes leaks, and can freeze your coil.
Hurricane Prep for Your AC Unit
Before a hurricane hits Pinellas County, turn your AC off at the breaker, clear debris from around it, and know what not to do.
What to Check on Your AC After a Storm or Flood
After a hurricane or flood, do not turn your AC on until you inspect the outdoor unit. Here is what to look for.
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