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A contractor called out to repair a central AC system in Washington County has to decide what actually wore the equipment down before they can quote the job honestly. 74 severe weather events were recorded in Washington County, Alabama between 2015 and 2024. At that rate, severe weather is an event in this county, not a backdrop every system has been grinding against season after season. What that means for a repair diagnosis is concrete: a failed capacitor, a refrigerant leak, or a compressor that has given out is almost certainly tracing back to age or how well the system was maintained, not to storm load. A contractor who skips that accounting and blames the weather is skipping the real work.
Half the homes in Washington County, Alabama were built in 1984 or earlier (2020-2024 ACS 5-year). A house built that long ago has almost certainly had its original equipment replaced at least once, which means what a contractor opens today is a system installed well after the house was framed. The question a repair turns on is whether the components that system takes are still in production and available locally. When they are, the job is straightforward. When they are not, the contractor is sourcing substitutes or presenting a replacement case, and the repair scope shifts accordingly.
The Parts of a Central AC a Contractor Checks First
The outdoor condenser unit sits on a pad beside the house and holds the compressor and condenser coil. These are the parts a contractor heads to first when a system stops cooling, because a failed compressor or a coil choked with debris will shut down the whole system. The indoor air handler or furnace cabinet, set in a utility room, attic, or closet, contains the evaporator coil and the blower fan.
The refrigerant lines run between the two cabinets, and the expansion valve sits where the refrigerant enters the evaporator coil. The thermostat on the wall is also part of what a contractor tests, because a wiring fault or a failed sensor there can look like a much larger problem.
The drawing shows a typical layout, and a licensed contractor determines which parts apply to your house and where the problem actually sits.
Get matched in Washington CountyWashington County, Alabama, by the numbers
74 severe weather events were recorded in Washington County, Alabama 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 Washington County, Alabama were built in 1984 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesWashington County, Alabama holds 7,797 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 85.8% of the occupied homes in Washington County, Alabama (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Governing Central AC Repair in Washington County, Alabama9 sourced rules and standards
What HVAC Repair Looks Like in Washington 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 Rules for HVAC Repair in Washington County, Alabama
Alabama requires state certification to do heating, air conditioning and refrigeration contracting: nobody may advertise, bid, pull permits or do the work unless the person in responsible charge is a certified contractor.
Severe Weather Events in Washington County
Storm activity puts real strain on AC equipment: power surges, debris, humidity swings, and extended run times all wear on components between service calls. How much of that load a system carries depends heavily on local conditions, which is why weather history belongs alongside any conversation about repair needs in Washington County.
74 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.