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A contractor working a heat pump repair here has to account for what the equipment has been running against before they can say what failed. 78 severe weather events were recorded in Claiborne County, Tennessee between 2015 and 2024. At that rate, the outdoor unit, the refrigerant lines, and the electrical components have all been under recurring stress, and a technician checks those first rather than assuming the problem is age or a simple refrigerant loss. What the weather record cannot tell you is which specific part gave out and whether it was pushed past its limit by load or installed wrong from the start. That distinction lands differently on the parts list and the final bill.

Ductwork in houses this old has usually seen at least one system come and go before the current one. Half the homes in Claiborne County, Tennessee were built in 1987 or earlier (2020-2024 ACS 5-year). That history matters most when a contractor opens the unit and identifies what failed, because the repair lives or dies on whether the part is still in production. A compressor or reversing valve from a system installed as a retrofit into older construction may belong to a line that has since been discontinued, which changes the repair from a parts order into a decision about what path forward is actually available.
The Parts of a Heat Pump a Contractor Checks First

The outdoor unit is the piece most homeowners recognize: a metal cabinet sitting on a pad outside the house, holding the compressor and one of the two coils. The compressor is where most repairs begin. When it fails, the system runs but moves no heat. The outdoor coil is the other common trouble spot, prone to damage and refrigerant leaks.
Inside the house, the air handler holds the indoor coil and the blower fan that pulls air across it. The expansion valve sits between the two coils and controls refrigerant flow. A contractor also checks the reversing valve, which is what lets a heat pump heat in winter and cool in summer. When that valve sticks, the system gets locked into one mode.
The drawing shows a typical layout, and a licensed contractor determines what applies to your specific system and home.
Find a contractor in Claiborne CountyClaiborne County, by the numbers
78 severe weather events were recorded in Claiborne 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 Claiborne County, Tennessee were built in 1987 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesClaiborne County, Tennessee holds 15,512 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 72.2% of the occupied homes in Claiborne County, Tennessee (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Heat Pump Repair in Claiborne County, Tennessee1 sourced rules and standards
Licensing Rules for HVAC Repair in Claiborne 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 Claiborne County
Extreme weather puts heat pumps under stress they were not sized to handle on calm days. How hard the equipment works over its lifetime is a local fact, and the record of weather events in this area is part of that picture.
78 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.