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A contractor called out to repair a heat pump in Madison County has to work out what the system has already been running against before they can say what failed and why. 121 severe weather events were recorded in Madison County, Indiana between 2015 and 2024. At that rate, severe weather is a standing condition, not a rare event, and it puts cumulative load on the components that handle sudden demand shifts. Reversing valves and capacitors take that load directly. A contractor checks those before writing off a compressor to age.
Ductwork in houses this old was sized and routed for heating systems that ran differently than a heat pump does, and what looks like an equipment fault sometimes turns out to be a restriction or a leak in the distribution side. Half the homes in Madison County, Indiana were built in 1965 or earlier (2020-2024 ACS 5-year). A contractor opening a heat pump here checks the refrigerant circuit, but the pressure and airflow readings push them toward the duct runs as much as the components. Parts availability is a separate question once the unit is open, and what the system actually contains decides whether the repair is a straightforward swap or a search.
The Parts of a Heat Pump a Contractor Checks During Repair
The outdoor unit sits outside the house and holds the compressor and the condenser coil. These are the parts a contractor goes to first when a heat pump stops heating or cooling properly. A failed compressor, a refrigerant leak at the coil, or a burned contactor in that cabinet accounts for a large share of heat pump repair calls.
The air handler lives inside the house, usually in a closet, attic, or basement, and it moves conditioned air across the indoor coil. The reversing valve, which sits inside the outdoor unit, is what lets a heat pump run in both directions, and when it sticks or fails the system gets stuck in one mode. The expansion valve and the refrigerant lines that run between the two units are also on a contractor's checklist when the system is underperforming.
The drawing shows the general layout of a heat pump system, and a licensed contractor will determine which components apply to the specific setup in your house.
Find a contractor in Madison CountyMadison County, Indiana, by the numbers
121 severe weather events were recorded in Madison County, Indiana 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 Madison County, Indiana were built in 1965 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesMadison County, Indiana holds 59,301 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 70.2% of the occupied homes in Madison County, Indiana (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Madison County
Every weather event that pushes a heat pump hard leaves a mark on the equipment. Repair needs in Madison County track with what the local climate demands of the system year over year.
121 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.