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A contractor repairing central AC in Houston County has to settle one question before anything else: whether what failed did so under genuine climate load or simply ran out of life. 248 severe weather events were recorded in Houston County, Alabama between 2015 and 2024. At that rate, severe weather is a standing condition here, and the cumulative strain on a compressor, capacitor, or contactor is a live variable in any diagnosis. A part that quit last summer may have been running against years of hard demand. That distinction changes which component a contractor prices and whether a repair holds.
Half the homes in Houston County, Alabama were built in 1985 or earlier (2020-2024 ACS 5-year). A system that has been running in a house built that long ago has likely been replaced at least once, and the unit a contractor opens today is not necessarily the original. What matters is what that opened system actually contains: the specific components it takes and whether those parts are still manufactured. Discontinued compressors, obsolete control boards, and refrigerant types no longer in production can each turn a repair call into a sourcing problem before any labor begins.
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 is where heat gets shed to the outside air. The indoor air handler or furnace sits inside, often in a closet, attic, or utility room, and it pushes conditioned air through the house. When a system stops cooling, these two units are where a contractor starts.
The copper refrigerant lines run between the indoor and outdoor units, and a fault anywhere along them shows up as poor cooling or ice buildup on the coil. The evaporator coil sits inside the air handler itself, and the capacitors and contactor inside the condenser cabinet are the electrical pieces that tell the compressor and fan motors when to run.
The drawing shows a typical layout, and a licensed contractor will determine which components apply to your specific system and house.
Get matched in Houston CountyHouston County, Alabama, by the numbers
248 severe weather events were recorded in Houston 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 Houston County, Alabama were built in 1985 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHouston County, Alabama holds 50,158 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 63.8% of the occupied homes in Houston County, Alabama (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Covering Central AC Repair in Houston County, Alabama9 sourced rules and standards
What HVAC Repair Looks Like in Houston 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 Houston 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 Houston County
Storms put a hard load on central AC systems, and what the weather does in a given area shapes how much wear that equipment takes over time. Repair needs here follow local conditions, and local conditions are worth knowing.
248 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.