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A heat pump in this county works both sides of the year, but the heating season is where the compressor and reversing valve earn their wear. Homes in Colleton County, SC run heat about five months a year, from November through March. Cold outdoor air forces the system to work harder to extract heat, and the reversing valve cycles every time the unit switches between heating and defrost mode. A contractor diagnosing a fault here checks refrigerant charge and reversing valve operation first, because those are the components that accumulate stress across a long heating season rather than standing idle through it.
Ductwork in a house this old has usually been asked to move air for more than one generation of equipment, and what it has collected along the way changes what a repair actually addresses. Half the homes in Colleton County, South Carolina were built in 1987 or earlier (2020-2024 ACS 5-year). A contractor who opens the unit and finds a stressed compressor or a weak refrigerant circuit has to decide whether the system is failing on its own terms or working against restricted airflow from ducts that were never cleaned or resealed between installs. Those are different repairs with different parts lists.
The Parts of a Heat Pump a Contractor Checks First
The outdoor unit sits on a pad outside the house and holds the compressor and condenser coil. The compressor is the part contractors look at early in a repair call because it drives the whole system. The condenser coil wraps around it and sheds or absorbs heat with the outside air, so dirt, bent fins, or refrigerant loss all show up there.
Inside the house, the air handler holds the blower motor and the evaporator coil, which is where the system exchanges heat with your indoor air. Running between the two units, the refrigerant lines and the reversing valve are what let a heat pump move heat in either direction. The reversing valve is a common repair point when the system blows the wrong temperature for the season.
The drawing shows a typical layout, and a licensed contractor determines which components apply and what condition they are in for your specific home.
Get matched in Colleton CountyColleton County, by the numbers
614 severe weather events were recorded in Colleton County, South Carolina 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 Colleton County, South Carolina were built in 1987 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesColleton County, South Carolina holds 20,083 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 73.3% of the occupied homes in Colleton County, South Carolina (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Covering Heat Pump Repair in Colleton County, South Carolina1 sourced rules & standards
Licensing and Legal Requirements in Colleton County, South Carolina
South Carolina requires a mechanical contractor license for contracting work whose total cost of construction is greater than ten thousand dollars.
Severe Weather Events in Colleton County
Weather puts hours on HVAC equipment. Every swing in conditions forces a heat pump to work harder, and that workload accumulates differently depending on what a given area regularly throws at it.
614 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.