Tell us about the job
Takes about a minute. No obligation.
A heat pump in Overton County has been running against genuine weather pressure, and a contractor doing repair work here treats that as part of the diagnostic picture. 107 severe weather events were recorded in Overton County, Tennessee between 2015 and 2024. At that rate, a failed reversing valve or a compressor that is struggling does not automatically trace back to neglect or age. A contractor will check what the system has been carrying before settling on a cause, because the weather load here is real enough to show up in the components.
Housing built for an earlier era of mechanical systems carries a repair history that compounds. Half the homes in Overton County, Tennessee were built in 1983 or earlier (2020-2024 ACS 5-year). A heat pump running in a house that old has likely seen at least one major component swap already, and when something fails today, a contractor opening the unit has to confirm whether the part it needs is still in production or has passed out of the supply chain. Refrigerant lines, control boards, and reversing valves tied to discontinued platforms can turn a straightforward repair into a sourcing problem before the labor question is even on the table.
The Parts of a Heat Pump a Contractor Checks First
The outdoor unit sits outside the house and holds the compressor and the outdoor coil. These are the parts a contractor reaches first when a heat pump stops heating or cooling correctly. A failed compressor, a refrigerant leak at the coil, or a burnt contactor inside that cabinet accounts for a large share of heat pump calls.
Inside the house, the air handler contains the indoor coil and the blower that moves air across it. The reversing valve, which lives in the outdoor unit, is the part that lets the system switch between heating and cooling. A bad reversing valve is a common reason a heat pump blows cool air when it should be warm, or the reverse.
The drawing shows the general layout of these components, and a licensed contractor determines which parts apply and what condition they are in for your specific home.
Find a contractor in Overton CountyOverton County, by the numbers
107 severe weather events were recorded in Overton 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 Overton County, Tennessee were built in 1983 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOverton County, Tennessee holds 10,406 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 76.9% of the occupied homes in Overton 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 Overton County, Tennessee1 sourced rules and standards
Licensing Rules That Apply in Overton 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 Overton County
Extreme weather puts heat pumps under load they were not sized to run at continuously, and that stress shows up as repair calls. How hard the weather pushes equipment here shapes what a local contractor sees most.
107 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.