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A contractor quoting a heat pump repair in Union County has to settle one question early: what actually wore this system down. 32 severe weather events were recorded in Union County, Indiana between 2015 and 2024. At that rate, severe weather is an occasional event in a system's life rather than a grinding constant, which means the compressor that quit or the reversing valve that failed has almost certainly been working toward that point for years on its own. A contractor checks refrigerant charge, electrical connections, and the condition of the coils because those are where age and original installation quality show up, and in a county with this record, that is where the answer sits.

Housing built for one era of heating and cooling carries those choices forward into every repair call. Half the homes in Union County, Indiana were built in 1970 or earlier (2020-2024 ACS 5-year). A heat pump sitting in a house that old was almost certainly installed well after the walls went up, and when it fails and a contractor opens it, what they find inside shapes whether the job closes in a day or stretches while parts are tracked down. Refrigerant fittings, control boards, and compressor components from older production runs are not always in ready supply, and that gap between what the system needs and what distributors stock is where repair timelines actually get decided.
The Parts of a Heat Pump a Contractor Checks First

The outdoor unit sits outside the house and holds the compressor and the condenser coil. These are where a contractor starts when a heat pump stops heating or cooling properly. A failed compressor, a refrigerant leak at the coil, or a seized fan motor in that cabinet are among the first things they rule out.
Inside, the air handler sits in a utility space, closet, or attic and pushes conditioned air through the house. Alongside it is the expansion valve, which controls refrigerant flow between the two units. The refrigerant lines that connect the outdoor unit to the air handler run through the wall, and a fault anywhere along that path can show up as reduced output or ice on the coil.
The drawing shows a typical heat pump layout, and a licensed contractor determines which components are at issue in your specific home.
Find a contractor in Union CountyUnion County, Indiana, by the numbers
32 severe weather events were recorded in Union 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 Union County, Indiana were built in 1970 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesUnion County, Indiana holds 3,255 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 79.8% of the occupied homes in Union County, Indiana (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Union County
Extreme weather puts real stress on heat pump systems, pushing them through temperature swings and power disruptions that wear components down faster than ordinary use. How much of that stress a system absorbs depends on where it sits, which makes local weather history a practical part of understanding repair demand in Union County.
32 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.