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Before a contractor can tell you what failed and what it will take to fix it, they have to work out what the system has actually been running against. 94 severe weather events were recorded in Seminole County, Florida between 2015 and 2024. At that rate, severe weather is a genuine factor in a system's wear history, not a rare event a contractor can rule out. But it is also not frequent enough to be the default explanation for a failed component. A compressor or capacitor that has given out could reflect weather load, deferred maintenance, or original installation quality, and a good diagnosis separates those before anything gets quoted or ordered.
Ductwork and refrigerant lines in a house this old were installed for equipment that has since been replaced at least once, and the system running today inherited whatever the previous install left behind. Half the homes in Seminole County, Florida were built in 1988 or earlier (2020-2024 ACS 5-year). When a repair contractor opens a unit here, what decides the job is whether the part that failed is still being made. Compressor valves, control boards, and certain metering devices for older refrigerant systems go discontinued before the equipment gives out entirely, which turns a routine repair into a sourcing problem. A contractor who cannot get the part has to tell the homeowner that before the quote can go any further.
The Parts of a Central AC a Contractor Checks During Repair
The outdoor condenser unit sits outside the house and holds the compressor, the condenser coil, and the fan that pushes heat out. When the system runs but cools poorly, or stops running altogether, those are the components a contractor reaches first. A failed compressor or a fouled condenser coil is often where the diagnosis ends.
Inside the house, the air handler holds the evaporator coil and the blower that pulls warm air across it. The expansion valve and the refrigerant lines connect the two units, and the thermostat tells the whole system when to run. A problem in any of these shows up as uneven cooling, ice on the coil, or a system that short-cycles.
The drawing shows a typical central AC layout, and a licensed contractor will determine which components apply to your specific setup.
Get matched in Seminole CountySeminole County, by the numbers
94 severe weather events were recorded in Seminole County, Florida between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Seminole County, Florida were built in 1988 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSeminole County, Florida holds 199,565 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 66.2% of the occupied homes in Seminole County, Florida (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Behind HVAC Repair in Seminole County, Florida9 sourced rules and standards
What HVAC Repair Looks Like in Seminole County
Split-system central air conditioners rated below 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners rated at or above 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners manufactured between January 1, 2015 and December 31, 2022 had to meet 13 SEER, the metric that preceded SEER2.
Single-package central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Space-constrained central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 11.7 SEER2.
Federal efficiency standards for split-system central air conditioners and heat pumps are set on each certified combination of outdoor unit and indoor coil rather than on the outdoor unit alone.
Residential and light commercial air conditioning and heat pump systems assembled in the field, including mini-splits and unitary systems, may not be installed on or after January 1, 2025 using a refrigerant with a global warming potential above 700.
A field-assembled system whose specified components were all manufactured or imported before January 1, 2025 carries no installation compliance date under the refrigerant restrictions and may still be installed.
Licensing and Legal Requirements in Seminole County, Florida
Florida requires a person to be certified or registered in order to engage in the business of contracting in the state.
Severe Weather Events in Seminole County
Florida weather puts real stress on cooling equipment: heat, humidity, and storms all push systems harder and shorten the window between service calls. How much stress depends on where the unit sits, and Seminole County has its own record.
94 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.