Tell us about the job
Takes about a minute. No obligation.
A heat pump here earns its keep as a heating system well before it ever switches to cooling. Homes in Minnehaha County, SD run heat about nine months a year, from September through May. At low outdoor temperatures, the refrigerant circuit works harder to extract heat from the air, and the reversing valve cycles between modes more often than it would in a milder place. When a contractor opens the cabinet on a repair call, the compressor windings and the reversing valve solenoid show the accumulated load from that heating demand. A system with an undersized refrigerant charge or a slow leak reaches that point faster, because it has been working against its own deficit through every cold stretch.
Ductwork sized and routed for earlier equipment shapes what a contractor finds once a heat pump is opened in a typical Minnehaha County home. Half the homes in Minnehaha County, South Dakota were built in 1987 or earlier (2020-2024 ACS 5-year). That history means the refrigerant lines, the air handler connections, and the original duct configuration may not match what the current system needs, and a contractor working through a repair has to account for that gap before the diagnosis is settled. Parts that fit the unit on the wall sometimes conflict with what the house was built to carry.
The Parts of a Heat Pump a Contractor Checks First
The outdoor unit is the piece most homeowners recognize on sight. It sits outside the house and holds the compressor, which is the part that does the hardest work in the system. When a heat pump stops heating or cooling, the compressor and the refrigerant lines running out of that cabinet are where a contractor looks first.
Inside the house, the air handler moves conditioned air through the home and contains the coil and the blower motor, either of which can be the source of weak airflow, ice buildup, or odd sounds. The reversing valve, which tells the system whether to heat or cool, and the expansion valve that controls refrigerant flow sit between those two main assemblies and draw attention when the system runs but delivers the wrong temperature.
The drawing shows a typical heat pump layout, and a licensed contractor determines which parts and configurations apply to your specific home.
Find a contractor in Minnehaha CountyMinnehaha County, by the numbers
281 severe weather events were recorded in Minnehaha County, South Dakota 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 Minnehaha County, South Dakota were built in 1987 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesMinnehaha County, South Dakota holds 89,418 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 63.1% of the occupied homes in Minnehaha County, South Dakota (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesWeather Stress on HVAC Equipment in Minnehaha County
Heat pumps work against whatever the outside air throws at them, and in Minnehaha County that workload shifts hard with the seasons. Repair demand follows weather, which is why the storm record here is a useful backdrop for understanding what drives equipment wear in this area.
281 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.