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A heat pump in this area has been running against a real and recurring weather load, and that history shows up inside the equipment when a contractor opens it. 82 severe weather events were recorded in Gibson County, Tennessee between 2015 and 2024. At that rate, refrigerant lines, capacitors, and contactors carry wear that a contractor has to account for before they can say whether a single failed part tells the whole story or whether adjacent components are close behind. A repair scope drawn up without that read risks missing the next failure before the first bill is cold.
Half the homes in Gibson County, Tennessee were built in 1976 or earlier (2020-2024 ACS 5-year). Housing built that long ago was designed around equipment that no longer exists, which means the heat pumps running in these houses are not original installs. They are replacements, sometimes more than once over. When a contractor opens a unit in Gibson County, the refrigerant circuit, the contactor, and the reversing valve carry the wear of years of heating and cooling seasons, and that wear does not follow the age of the house. It follows the age of the equipment itself, and whether the parts it requires are still in production.
The Parts of a Heat Pump a Contractor Checks First
The outdoor unit sits on a pad beside the house and holds the compressor, which pressurizes the refrigerant, and the coil that either sheds or pulls in heat depending on the season. When a heat pump fails to heat or cool, the compressor and that outdoor coil are where a contractor looks first.
The air handler lives inside, usually in a closet, attic, or utility room, and contains the indoor coil and the blower that moves conditioned air through the house. The refrigerant line set runs between the two units, and the reversing valve inside the system is what lets it switch between heating and cooling modes. A fault in the reversing valve is a common reason a heat pump will heat but not cool, or the other way around.
The drawing shows a general layout of how these pieces relate to each other, and a licensed contractor determines exactly what applies to your house and your system.
Find a contractor in Gibson CountyGibson County, Tennessee, by the numbers
82 severe weather events were recorded in Gibson County, Tennessee 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 Gibson County, Tennessee were built in 1976 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesGibson County, Tennessee holds 22,617 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 68.8% of the occupied homes in Gibson County, Tennessee (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Covering Heat Pump Repair in Gibson County, Tennessee1 sourced rules & standards
Licensing Rules for HVAC Repair in Gibson County, Tennessee
Tennessee licenses contractors by classification, and HVAC, refrigeration and gas piping is one of them — a sub-classification of mechanical contracting on the licence the Board for Licensing Contractors issues.
Severe Weather Events in Gibson County
Heat pumps in Gibson County work against whatever the climate throws at them, and that workload shows up in how often equipment needs attention. Weather history is part of understanding why repair demand here looks the way it does.
82 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.