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Spring AC Tune‑Up Checklist: 11 Tasks We Perform That DIY Can’t Match

UAT technician checking AC refrigerant with homeowners

in Jacksonville and St. Augustine means longer days, blooming flowers—and the first hints of Florida heat. Before your AC is working overtime, now’s the perfect time to give it a little TLC. AC maintenance can help prevent surprise breakdowns, lower your energy bills, and keep your home cool when the real heat kicks in.

At United Air Temp, we see every customer as a lifelong customer, and we’re always willing to go the extra mile—and that includes making sure your HVAC system is ready to handle whatever Florida’s spring and summer throw your way.

So, what should you be checking off your list to get your system in shape?

1. Check Ductwork for Leaks

Leaky ducts can waste a significant amount of cooled air before it ever reaches your rooms. Inspect visible ductwork in attics, basements, and crawl spaces for gaps, disconnected sections, or crushed areas.

Sealing leaks improves efficiency and comfort—and helps lower your energy bills.

2. Clean Vents & Registers

Dust and pet hair can build up around supply and return vents, reducing airflow and circulating allergens.

Remove vent covers and clean them with a vacuum or damp cloth. Make sure furniture or rugs aren’t blocking registers.

3. Inspect & Clean the Blower

Your blower motor keeps air moving through your home, so it’s worth a quick check. Turn off the power, remove the panel, and inspect the belts for wear.

Clean the blower wheel with a soft brush or vacuum, and make sure the motor spins freely. Check the bearings and wiring for wear or loose connections to keep everything running smoothly.

4. Clean the Evaporator Coil

The evaporator coil absorbs heat inside your home. Over time, dust and grime can insulate the coil and prevent it from working efficiently.

Cleaning the coil helps your system cool faster and prevents strain on the compressor.

5. Clean the Condenser Coil

The condenser coil, located outside, releases heat from your home. Spring pollen, leaves, and dirt can clog the coil and reduce performance.

Gently rinse it with a garden hose — never a pressure washer — and remove any debris from around the unit.

6. Flush the Condensate Drain

The condensate line drains moisture from your AC system. If it’s clogged, you could end up with leaks or mold.

Flush the line with a vinegar solution or ask your tech to clean it during your AC maintenance visit.

7. Check Refrigerant Pressure

Low refrigerant levels can point to a leak or poor system performance.

A licensed HVAC technician can test the pressure, identify issues, and recharge your refrigerant if needed—helping your AC stay efficient and effective.

8. Check Electrical Connections

Loose or corroded electrical connections are a safety hazard and can cause your system to shut down unexpectedly.

During your HVAC system check, all electrical components should be inspected and tightened if necessary.

9. Lubricate Moving Parts

Proper lubrication is essential for parts like motors, fans, and bearings to avoid overheating or friction damage.

Spring maintenance includes oiling these components to reduce wear and noise.

10. Test the Thermostat

Check that your thermostat responds properly and holds the correct temperature.

If it seems off, try recalibrating it by checking the reading against a separate thermometer and adjusting the settings according to the manufacturer’s instructions.

If it’s still inaccurate—or if you want more control—consider upgrading to a programmable or smart thermostat for improved comfort and energy savings.

11. Test Humidity Levels

Too little or too much humidity can affect comfort and air quality. Your HVAC tech can test indoor levels and recommend options like whole-home humidifiers or dehumidifiers to keep your home balanced year-round.

Get  Reliable Cooling with UAT

Living in Jacksonville or St. Augustine means hot, humid summers—and when your air conditioning system acts up, you need a team that’s fast, reliable, and knows the local climate.

That’s where United Air Temp comes in. As your trusted HVAC company, we proudly offer 24/7 AC repairs, same-day service, and expert AC installation and replacement, so you’re never left waiting in the heat.

We make HVAC maintenance simple with upfront pricing and clear communication, including a written report after every visit. Partner with a team that puts your comfort first to make your HVAC system check this spring a breeze.

Is your air conditioning checklist complete? From Jacksonville to St. Augustine, United Air Temp is here to keep your home cool and your experience hassle-free—schedule AC maintenance today!

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