Home Air Conditioning FAQs

Determining the correct size requires a professional Manual J load calculation performed by a certified technician. Factors such as home square footage, layout, insulation ratings, window placement, ceiling height, and sun exposure dictate cooling requirements. Installing an oversized unit causes short-cycling and leaves excessive humidity indoors, while an undersized unit runs continuously without reaching your target temperature.

Key efficiency and performance ratings include:

• SEER2 (Seasonal Energy Efficiency Ratio 2): Measures cooling efficiency under updated testing standards. Higher numbers indicate lower monthly electric bills.
• AFUE (Annual Fuel Utilization Efficiency): Rates gas or oil furnace efficiency as a percentage of fuel converted directly into heat.
• HSPF2 (Heating Seasonal Performance Factor 2): Measures heating efficiency for heat pumps during cooler months.
• MERV (Minimum Efficiency Reporting Value): Rates air filter density and particle capture capability (higher ratings trap smaller airborne allergens).

Check the manufacturer’s data label on the side of your outdoor condenser or indoor air handler to find the model number, serial number, and manufacture date. Most major brands offer a standard 5-year base warranty, which expands to 10 years if registered within 90 days of installation (or 12 years for Mitsubishi systems installed by an authorized Diamond Dealer like ABS Heating & Air). You can verify coverage on the manufacturer’s warranty lookup portal or by calling our office with your serial number.

Yes. Modern indoor air handlers and outdoor condensers are engineered as matched AHRI-certified systems. Pairing a new outdoor unit with an aging indoor coil leads to mismatched refrigerant controls, reduced SEER2 efficiency, frequent breakdowns, and potential voiding of the manufacturer’s warranty.

• Central AC: Uses a central air handler and ductwork network to distribute cooled air across the entire building.
• Ductless Mini-Split: Connects an outdoor unit directly to individual indoor wall handlers without ductwork, allowing independent room-by-room zone control.
• Heat Pump: Operates similarly to a central AC in summer, but reverses operation in winter to deliver efficient heating without relying on energy-intensive electric heat strips.

In Central Florida, central air conditioners and heat pumps typically last between 10 to 15 years due to heavy year-round operation and high humidity. Regular seasonal maintenance and timely filter changes are critical to reaching the upper end of this lifespan.

For optimal balance between comfort and energy efficiency during Florida summers, set your thermostat to 78°F while at home. During winter cool snaps, setting the system to 68°F maintains indoor warmth efficiently. Installing a programmable or smart thermostat allows automated temperature setbacks when you are away or sleeping.

Frequent cycling (short-cycling) indicates an underlying operational fault. Common causes include an oversized system, dirty air filters restricting airflow, a malfunctioning thermostat, low refrigerant levels, or failing electrical capacitors.

Water around the indoor air handler usually points to a clogged condensate drain line, a cracked drain pan, or an overflowing condensate pump. While minor condensation near the outdoor drain line exit is normal, standing water inside the home requires immediate attention to clear the drain line and prevent ceiling or floor damage.

Ice formation on refrigerant lines or indoor coils is caused by restricted airflow (severely clogged filters, closed vents, dirty blower wheels) or a refrigerant leak. Turn off the cooling mode immediately, run the system fan to thaw the ice, and schedule a diagnostic call.

Refrigerant replacement must be handled by an EPA-certified HVAC technician. Because air conditioning systems are sealed loops, losing refrigerant means there is an active leak that must be diagnosed, isolated, and repaired before recharging the unit with R-410A or newer R-454B refrigerant.

Routine maintenance removes dirt accumulation from coils, checks electrical connections, clears condensate lines, and verifies proper refrigerant pressures. Regular tune-ups restore cooling capacity, lower energy consumption, prevent unexpected summer breakdowns, and satisfy warranty compliance requirements.

We recommend professional preventative maintenance twice a year: a cooling tune-up in spring and a heating inspection in autumn. Heat pumps work year-round in Central Florida and benefit significantly from bi-annual service.

Standard replacement filters are available at local home improvement stores. For specialized media filters, custom sizes, or high-MERV allergen options, ABS Heating & Air supplies factory-fit filters directly during maintenance visits.

When leaving your home for several days or during seasonal travel, set your thermostat between 81°F and 83°F. Never turn the system completely off during Florida summers, as continuous air circulation is required to control indoor humidity and prevent mold growth.