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On a heat pump repair call in Richmond County, a contractor looks at the reversing valve early. Homes in Richmond County, NY run heat about seven months a year, from October through April. Heating mode pushes the refrigerant circuit through repeated pressure swings each time the outdoor temperature falls and the unit has to extract heat from cold air, and the reversing valve switches direction every time the system changes modes. A compressor working that deep into cold-weather operation runs closer to its limits than it does on a mild day, and a refrigerant charge that is even slightly low shows up as a real capacity problem rather than a marginal one.

Half the homes in Richmond County, New York were built in 1974 or earlier (2020-2024 ACS 5-year). A heat pump running in a house adapted from an earlier system is often carrying wear the adaptation itself created. When a contractor opens the unit, what they find reflects both what the equipment has endured and what the surrounding installation asked of it. Refrigerant lines routed to fit a retrofit, electrical connections sized for a different draw, mounting arrangements that were close enough to work but not built for the load: any of these puts stress on components that then show up as the repair call. Parts availability compounds this. If a system was fitted to a house rather than designed into it, the components it takes are specific, and sourcing them takes longer than a standard job.
The Parts of a Heat Pump a Contractor Checks First

The outdoor unit holds the compressor and the condenser coil. It sits outside the house, usually on a pad at ground level or mounted on a wall bracket. The compressor is where most mechanical failures start, and the coil is where refrigerant either releases or absorbs heat, so a contractor will look at both early.
Inside, the air handler contains the evaporator coil and the blower fan, and it delivers conditioned air into the home. The refrigerant lines run between the two units, and the expansion valve sits along that path controlling refrigerant flow. The thermostat and the reversing valve, which switches the system between heating and cooling, round out what a contractor will check when the system is not performing.
The drawing shows a general layout of these components, and a licensed contractor determines which ones apply and what condition they are in for your specific home.
Get matched in Richmond CountyRichmond County, by the numbers
55 severe weather events were recorded in Richmond County, New York 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 Richmond County, New York were built in 1974 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRichmond County, New York holds 184,621 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 67.7% of the occupied homes in Richmond County, New York (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesSevere Weather Events in Richmond County
Extreme weather puts heat pumps under stress, and Richmond County's climate is its own environment with its own demands. Repair needs here are shaped by local conditions, which is why the weather record is part of the picture.
55 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.