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A heat pump here runs its compressor and reversing valve hard through a long heating season, and those are the parts that show it first. Homes in Garfield County, WA run heat about ten months a year, from September through June. Cold outdoor air forces the refrigerant circuit to work harder to extract heat, which loads the compressor repeatedly across months that most residential equipment was not sized with enough margin to handle quietly. When a contractor opens a unit for diagnosis, worn valve seats and compressor windings are what they find, not incidental faults but the direct product of sustained cold-weather cycling. Refrigerant charge and defrost controls get checked in the same visit, because both degrade under the same conditions.
Ductwork in a house carries the history of every system that ever ran through it. Half the homes in Garfield County, Washington were built in 1957 or earlier (2020-2024 ACS 5-year). When a contractor opens a heat pump here, what they find inside the unit is only part of the picture. The duct runs behind the walls tell a different story, one of patches, resealed joints, and sections that were sized for equipment long gone. A repair that looks straightforward from the outside can turn into a longer job once a technician traces a pressure problem back to a duct connection that has been leaking for years.
The Parts of a Heat Pump a Contractor Checks First
The outdoor unit sits outside the house and holds the compressor and condenser coil, which are the pieces that do the heaviest work in any heating or cooling cycle. When a heat pump is not heating or cooling properly, the compressor and the coil inside that cabinet are where a contractor starts.
The air handler sits inside the house, usually in a utility closet, basement, or attic, and it holds the indoor coil and the blower fan that moves conditioned air through the home. The refrigerant lines run between the two units, and the reversing valve inside the system is the part that lets a heat pump shift between heating and cooling modes. A failed reversing valve is one of the first things a contractor checks when the system runs but delivers the wrong temperature.
The drawing shows a general layout of these components, and a licensed contractor determines which parts apply and what condition they are in for your specific house.
Get matched in Garfield CountyGarfield County, by the numbers
48 severe weather events were recorded in Garfield County, Washington 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 Garfield County, Washington were built in 1957 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesGarfield County, Washington holds 1,221 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 76.9% of the occupied homes in Garfield County, Washington (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules and Standards Governing Heat Pump Repair in Garfield County, Washington1 sourced rules and standards
Licensing Rules for HVAC Repair in Garfield County, Washington
Washington requires contractor registration rather than an HVAC licence: every contractor must register with the Department of Labor and Industries, and advertising, bidding or working as a contractor without that registration is a gross misdemeanour.
Severe Weather Events in Garfield County
Weather puts a measurable load on heat pump equipment, and that load varies by where you live. The repair picture in Garfield County is shaped in part by what the climate here asks of the equipment year after year.
48 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.