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A heat pump in Franklin County has been running against real weather pressure for years, and that history shows up in the parts. 109 severe weather events were recorded in Franklin County, Tennessee between 2015 and 2024. At that rate, compressors, reversing valves, and capacitors accumulate stress that quiet climates don't produce at the same pace. A contractor here checks those components against the full picture of what the system has been through before settling on a cause, because a surface failure in this area often has a harder-worked underlying part behind it.
Ductwork and wiring that were put in for something other than a heat pump carry the system through every heating and cooling cycle, and what they impose on the equipment shows up once a contractor opens the unit. Half the homes in Franklin County, Tennessee were built in 1985 or earlier (2020-2024 ACS 5-year). A heat pump running in a house like that works against conditions its designers did not specify, and the wear a technician finds inside the refrigerant circuit or on the electrical components reflects that history. A part that looks like a straightforward replacement may turn out to need a different answer once the contractor sees what the surrounding infrastructure has been doing to it.
The Parts of a Heat Pump a Contractor Checks During Repair
The outdoor unit sits on a pad beside the house and holds the compressor and the condenser coil. The compressor is the part a contractor reaches for first when a heat pump stops moving heat altogether. The condenser coil, the fan motor, and the capacitor that starts the compressor are all housed in the same cabinet and each one is a common source of failure.
Inside the house, the air handler contains the blower motor and the evaporator coil, which is where refrigerant does its work on the indoor air. The reversing valve, which tells the system whether to heat or cool, sits in the refrigerant line and is another piece a contractor examines when the system runs but delivers the wrong temperature. The thermostat and the refrigerant lines that connect both units round out what a contractor works through on a repair call.
The drawing shows a typical layout, and a licensed contractor determines which components apply to the specific system in your home.
Find a contractor in Franklin CountyFranklin County, by the numbers
109 severe weather events were recorded in Franklin 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 Franklin County, Tennessee were built in 1985 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesFranklin County, Tennessee holds 20,110 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 77.4% of the occupied homes in Franklin County, Tennessee (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Licensing That Govern Heat Pump Repair in Franklin County, Tennessee1 sourced rules and standards
Licensing Rules for HVAC Repair in Franklin 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 Franklin County
Weather puts real stress on heat pump equipment. Every temperature swing and storm event is a load the system has to absorb, and over time that workload shows up as wear, strain, and repair calls.
109 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.