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A compressor cycling through a full summer has a short list of parts that take the hit: the contactor, the capacitor, and the condenser fan motor. Homes in Florence County, SC run cooling about five months a year, from May through September. Each startup and shutdown loads those components, and by the time a homeowner notices the system has stopped cooling, the contactor has likely logged more switching cycles than it was ever rated to ignore. A contractor diagnosing a failed unit here pulls the electrical components before anything else, because those are the ones that carry the season's runtime.
Central AC systems running in this county's older homes have cycled through heat and humidity for long enough that what opens up matters more than what the service call was dispatched for. Half the homes in Florence County, South Carolina were built in 1986 or earlier (2020-2024 ACS 5-year). A contractor pulling apart a unit in stock like this finds components that have been stressed hard, and the real question is whether the manufacturer still supplies what the repair requires. Aftermarket availability on older refrigeration parts and control boards is uneven, and that gap decides whether a repair closes the job or extends it.
The Parts of a Central AC a Contractor Checks First
The outdoor condenser unit sits outside the house, usually on a concrete pad along an exterior wall, and it carries the compressor and the condenser coil. When a system stops cooling or runs but does nothing useful, those two components are where a contractor looks first. A failed compressor or a coil that cannot shed heat will kill the whole system's output.
Inside the house, the air handler holds the evaporator coil and the blower that pulls air across it. The refrigerant line set runs between the two units, and the expansion valve sits at the evaporator end, controlling how refrigerant enters the coil. A refrigerant leak, a frozen coil, or a weak blower motor each points a contractor to a different part of this indoor assembly.
The drawing shows a typical central AC layout, and a licensed contractor determines which components apply to your specific house and what work each one needs.
Get matched in Florence CountyFlorence County, by the numbers
120 severe weather events were recorded in Florence County, South Carolina 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 Florence County, South Carolina were built in 1986 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesFlorence County, South Carolina holds 62,090 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 64.5% of the occupied homes in Florence County, South Carolina (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Central AC Repair in Florence County, South Carolina9 sourced rules and standards
What the repair visit looks like
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 Florence County, South Carolina
South Carolina requires a mechanical contractor license for contracting work whose total cost of construction is greater than ten thousand dollars.
Severe Weather Events in Florence County
Storm activity puts direct stress on central AC systems, driving compressor strain, refrigerant line damage, and electrical faults that add up over time. How much weather a county sees shapes how hard that equipment works and how often repair calls happen.
120 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.