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A central AC system in Chatham County has been running against a weather record that shows up consistently in what contractors find when they open equipment. 343 severe weather events were recorded in Chatham County, Georgia between 2015 and 2024. At that rate, severe weather is a standing feature of life for any system installed here, and the wear it drives into compressors, capacitors, and condenser coils is real and cumulative. A contractor quoting a repair on this equipment is not guessing at what the system has been through. That history shows in the parts.
Ductwork laid into a house built for an earlier generation of equipment tends to carry the record of every system that has run through it since: flex connections patched at junctions, dampers adjusted and left, coil housings that reflect the footprint of something long discontinued. Half the homes in Chatham County, Georgia were built in 1986 or earlier (2020-2024 ACS 5-year). A technician opening a central AC unit in stock like this runs into that history at the parts stage, where what the system actually takes may no longer be stocked by a distributor and has to be sourced or fabricated. That gap between what the manufacturer still supplies and what the opened unit requires is where the repair scope gets set.
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 condenser coil. These are the parts a contractor goes to first when a system stops cooling, runs constantly, or makes noise it did not make before. A failed compressor or a fouled coil shows up fast in a diagnostic.
Inside the house, the air handler or furnace cabinet holds the evaporator coil and the blower. The evaporator coil is a frequent source of trouble when airflow drops or ice appears on the system. A refrigerant line set runs between the two units, and the thermostat on the wall is the control point a contractor checks whenever the complaint is that the system does not respond correctly.
The drawing shows a typical central AC layout, and a licensed contractor determines which components apply to your specific house and situation.
Get matched in Chatham CountyChatham County, by the numbers
343 severe weather events were recorded in Chatham County, Georgia 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 Chatham County, Georgia were built in 1986 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesChatham County, Georgia holds 137,532 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 56.8% of the occupied homes in Chatham County, Georgia (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards for Central AC Repair in Chatham County, Georgia8 sourced rules and standards
What HVAC Repair Looks Like in Chatham 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.
Severe Weather Events in Chatham County
Chatham County's climate puts real stress on central AC systems, and that stress compounds every time severe weather moves through. Repair needs here are shaped by local conditions, which is why the weather record for this area belongs alongside the service.
343 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.