AC Maintenance and Air Conditioning Tune-Ups in Carrollwood

The University of Florida GeoPlan Center publishes a census report for the Carrollwood census designated place. It lists Hillsborough as the county jurisdiction and counts 35,682 residents in its 2019-2023 figures.

A mostly single-family housing stock

The GeoPlan report counts 12,756 housing units in 1990. Its 2019-2023 column counts 14,977.

In that 2019-2023 column, single-family houses number 10,985. The report also counts 3,835 multi-family units and 156 mobile homes. Owners occupy 9,857 homes and renters occupy 4,417.

Water inside the boundary

The Census Bureau's gazetteer counts 9.227 square miles of land and 1.048 square miles of water inside Carrollwood's boundary. If your outdoor unit sits near a lake edge or a planted bank, growth around the cabinet is worth watching between visits.

The useful local weather record is the NOAA 1991-2020 climate normals station at Tampa International Airport, south of Carrollwood. These are airport figures, not readings taken in Carrollwood itself. They show about 94 days a year reaching 90 degrees Fahrenheit.

The airport averages no 90-degree days from January through March. April averages one. May rises to 9.6, and June through September run from 17.9 to 22.4. October still averages 4.4.

ENERGY STAR, the federal efficiency program, recommends annual pre-season check-ups by a contractor. It notes that contractors get busy once summer comes, and that it is best to check the cooling system in the spring. At the airport, a March or April visit comes before 90-degree days become common.

Warm nights and the wet season

Normal lows at the airport stay at 75 degrees or higher from June through September.

The National Weather Service office for Tampa Bay puts the rainy season from May 25 to October 10 for the rest of West Central Florida. It says the season brings more humidity, with persistent dew points above 70 degrees. The dew point is the temperature at which moisture in the air turns to water. Your air conditioner removes some of that moisture indoors, and the water has to drain away.

A quick rinse of the outdoor unit is not a full visit. ENERGY STAR's maintenance checklist lists the core tasks a contractor should do. Here is what each one means in plain words.

Coils, inside and out

The indoor coil, called the evaporator, takes heat and moisture out of your home's air. The outdoor coil, called the condenser, releases that heat outside. ENERGY STAR says dirty coils reduce the system's ability to cool your home and make it run longer. Trane, an equipment manufacturer, recommends hiring a professional to inspect and clean the unit.

Electrical connections and controls

The checklist calls for tightening all electrical connections and measuring voltage and current on motors. It says faulty connections can cause unsafe operation and shorten the life of major parts. It also calls for checking that the system starts, runs and shuts off properly.

Refrigerant level

Refrigerant is the fluid that carries heat from inside your home to the outdoor unit. ENERGY STAR lists checking the refrigerant level and adjusting it if necessary. It says too much or too little makes the system less efficient. Blume's refrigerant work is done by EPA Section 608 certified technicians, who hold the federal refrigerant-handling credential.

Condensate drain and overflow switch

ENERGY STAR lists inspecting the condensate drain in cooling mode, and says a plugged drain can cause water damage in the house. If your system has a condensate overflow switch, Trane explains that when the switch detects a possible overflow, it shuts down the outdoor compressor and fan. If your system has one, the visit should cover the switch along with the drain.

Blower and airflow

The blower is the indoor fan that pushes air through the ducts. ENERGY STAR lists cleaning and adjusting blower components for proper airflow. Blume's installation standard is measurement, not rule of thumb: equipment sized by ACCA Manual J load calculation and Manual S selection. New systems are commissioned with measured static pressure, airflow and refrigerant charge, documented. Static pressure is the resistance the blower pushes against, and those readings give each later visit a baseline.

• Filter. ENERGY STAR advises inspecting, cleaning or changing the air filter once a month. It says a dirty filter can damage equipment and lead to early failure. Our guide to HVAC air filters explains how to choose one.
• Thermostat. Confirm the mode is set to Cool and the setpoint is where you want it. See thermostat settings for a starting point.
• Vents, returns and the outdoor unit. Keep furniture and rugs off supply vents and return grilles. Trane advises keeping plants trimmed at least two feet away from the outdoor unit on all sides. Pull leaves and debris away by hand, and do not open any panel.

Refrigerant, wiring, capacitors, the drain line and anything inside a cabinet belong to a licensed contractor.

Trane notes that a system with a condensate overflow switch may shut off suddenly in the heat of the day because of a clogged condensate line or pan. Treat a sudden afternoon shutdown as a reason to call, not a reason to keep restarting the system.

Also call if you notice any of these:

• Warm air from the vents while the system runs.
• Ice on the copper lines or the indoor unit.
• Water around the indoor unit or in its pan.
• A tripped breaker for the air conditioner. Leave it off and call a licensed contractor.
• A new noise or a burning smell when the system starts.

The Weather Service lists frequent lightning as a feature of the local rainy season. Our guide to AC surge protection in Florida is worth reading before the season starts. If your house feels damp even with the air conditioner running, see why a house stays humid with the AC on.

Blume Mechanical Service is a Class A licensed Florida air conditioning contractor, license CAC-1822618, and is fully insured. We work from Belleair Bluffs and serve Pinellas, Hillsborough and Pasco counties, which includes Carrollwood. We are brand-agnostic and service all major manufacturers as a licensed contractor.

Hillsborough County tells homeowners to make sure a contractor holds a valid license and is insured to work in the county. If a visit turns up work that needs a permit, the county says a hired contractor will obtain the necessary permits.

If a visit finds a problem that maintenance will not fix, you get the repair-versus-replace comparison side by side. Blume does not sell equipment a home does not need. Paid priority scheduling is available. For a system that stops entirely, Blume offers 24/7 emergency HVAC service, with same-day response available based on location and technician availability.

For the full seasonal list, see our AC maintenance checklist for Florida homes. Plan details are on the AC maintenance plan page. Our other local services are on the Carrollwood service page, and nearby homeowners can see AC maintenance in Tampa.