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A heat pump in Crook County spends far more hours moving heat into a house than out of one, and the components that strain under heating demand are different from those that fail in a long cooling season. Homes in Crook County, WY run heat about ten months a year, from September through June. The reversing valve cycles with every mode switch, the refrigerant circuit runs under higher pressure differentials in cold air, and the auxiliary heat strips cover the gap when outdoor temps drop below what the unit can match. When a contractor opens a unit here for a repair diagnosis, refrigerant charge and reversing valve function are the first things they test, not the condenser fan or the contactor. A system that was undersized at installation shows those failures sooner.
Ductwork that has been in place for a long time collects debris, develops gaps at the joints, and loses whatever seal it once had, and all of that shapes what a heat pump repair actually costs once work begins. Half the homes in Crook County, Wyoming were built in 1986 or earlier (2020-2024 ACS 5-year). A contractor opening a system in housing of this vintage often finds that the refrigerant lines and the duct connections around the unit have deteriorated in ways the thermostat never reported. The repair ticket that looked straightforward from the outside grows once those conditions are visible.
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 most repairs begin. When it fails, the system runs but moves no heat. The condenser coil wraps around it, and a bent or fouled coil forces the compressor to work harder than it should.
Inside the house, the air handler pulls indoor air across the evaporator coil and pushes conditioned air into the living space. The reversing valve sits within the refrigerant circuit and is what allows the system to heat and cool. The expansion valve and the refrigerant lines connecting both units round out what a contractor will trace when something is off.
The drawing shows a typical layout, and a licensed contractor determines which parts apply and what condition they are in for your specific home.
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388 severe weather events were recorded in Crook County, Wyoming 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 Crook County, Wyoming were built in 1986 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCrook County, Wyoming holds 3,685 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 78.1% of the occupied homes in Crook County, Wyoming (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Crook County
Extreme weather puts real stress on heat pump components, and how hard a system works over time shapes what repairs it needs. This chart shows the local pattern, because a heat pump in Crook County operates under conditions that a contractor here will recognize.
388 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.