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On a repair call in Union County, a contractor starts with the reversing valve and the compressor, because those are the components the heating season has been working hardest. Homes in Union County, AR run heat about five months a year, from November through March. Capacity drops as outdoor temperatures fall, so the compressor cycles harder in the coldest weeks, and that cycling is where wear accumulates. A reversing valve that is sluggish or leaking across its seats will cut heating output before most homeowners notice anything wrong. The contractor establishes what those parts have already been through before pricing anything else.
Ductwork laid down for earlier heating systems carries its history in ways that show up during a heat pump repair. Collapsed flex runs, settled joints, and insulation that has long since lost its value all affect how a technician reads what the equipment is doing, because a fault at the air handler can look identical to a restriction in a duct run that has been losing capacity for years. Half the homes in Union County, Arkansas were built in 1979 or earlier (2020-2024 ACS 5-year). A contractor who opens the heat pump and finds a refrigerant charge that keeps drifting has to check what the duct system is asking of it before the repair call makes sense. The parts a unit of this vintage takes are the first question; what the duct system has been doing to its runtime is the second.
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. The compressor is where a contractor looks first when a heat pump stops moving heat altogether, because a failed compressor is a hard stop for the whole system. The condenser coil, wrapped around the unit, is the next stop when the system runs but struggles.
Inside the house, the air handler contains the evaporator coil and the blower. The evaporator coil is a common source of refrigerant leaks and icing, while the blower motor is what a contractor checks when airflow drops or disappears. The reversing valve, also inside the refrigerant circuit, is the piece a contractor examines when the system heats but cannot cool, or the other way around.
The drawing shows the general layout of a heat pump system, and a licensed contractor determines which parts apply and what needs attention in your specific home.
Find a contractor in Union CountyUnion County by the numbers
113 severe weather events were recorded in Union County, Arkansas 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, Arkansas were built in 1979 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesUnion County, Arkansas holds 18,649 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 72.7% of the occupied homes in Union County, Arkansas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Heat Pump Repair in Union County, Arkansas2 sourced rules and standards
Licensing and Legal Requirements in Union County, Arkansas
An Arkansas HVACR licence is good across the state: no city or county may require its own licence to do HVACR work, though local permits and inspections still apply.
Arkansas requires an HVACR licence or registration: it is unlawful to do HVACR work without the appropriate one unless the chapter exempts you.
Severe Weather Events in Union County
Extreme weather puts heat pumps under load they were not built to sustain indefinitely. Repair needs in Union County track closely with what the weather asks of the equipment, which is why local storm history matters here.
113 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.