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A heat pump compressor doing heating work runs harder as temperatures drop, because capacity falls as the outdoor air gets colder. Homes in Washington County, KS run heat about seven months a year, from October through April. That physics is what a contractor is tracing when a Washington County heat pump comes in for repair: the compressor, the reversing valve, and the refrigerant circuit have been carrying a heating load through the coldest months, not the easier summer work. Worn contacts, low refrigerant, and a laboring compressor are the findings that point back to that cold-weather strain.

Half the homes in Washington County, Kansas were built in 1953 or earlier (2020-2024 ACS 5-year). A heat pump dropped into a house built for a different era of mechanical systems is usually newer than the structure around it, but that does not mean parts are easy to find. The generation of equipment that filled those houses as owners upgraded tends to draw on component lines that manufacturers have since narrowed, and when a contractor opens a unit here, whether the boards, sensors, or refrigerant-side parts it takes are still in production is what sets the price and the timeline. The house is not the constraint. The parts catalog is.
The Parts of a Heat Pump a Contractor Checks First

The outdoor unit is the piece most homeowners recognize, and it sits on a pad beside the house. Inside its cabinet are the compressor and the outdoor coil. The compressor is the heart of the system, and when a heat pump stops heating or cooling, that is where a contractor looks first. The outdoor coil works alongside it, and a damaged or dirty coil will drag the whole system down.
Inside the house, the air handler holds the indoor coil and the blower fan, moving conditioned air into the living space. The refrigerant lines connect the two units, and the reversing valve inside the system is what lets a heat pump shift between heating and cooling modes. A faulty reversing valve is a common reason a heat pump blows the wrong temperature air.
The drawing shows the general layout of a heat pump system, and a licensed contractor determines which parts apply to your specific home and situation.
Find a contractor in Washington CountyWashington County, Kansas, by the numbers
145 severe weather events were recorded in Washington County, Kansas 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 Washington County, Kansas were built in 1953 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesWashington County, Kansas holds 2,714 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 78.5% of the occupied homes in Washington County, Kansas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Washington County
Extreme weather puts heat pumps under stress, and the wear that follows is what drives most repair calls. Knowing what the climate here actually delivers is part of understanding why local equipment ages the way it does.
145 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.