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A contractor repairing a heat pump here looks at the compressor, the refrigerant circuit, and the electrical components, but they are not starting with the assumption that weather explains the problem. 99 severe weather events were recorded in Alexander County, Illinois between 2015 and 2024. That puts Alexander County in the middle of the national range, meaning severe weather is a real variable but not the dominant one bearing down on every system. Age and maintenance history are what a contractor weighs first when a heat pump stops performing, because a system that has been skipped on service fails in the same ways regardless of what the sky has done.
Older refrigerant systems and discontinued component lines turn up regularly in heat pump repair work here, and a contractor opening a unit cannot assume the part they find inside is still made. Half the homes in Alexander County, Illinois were built in 1969 or earlier (2020-2024 ACS 5-year). A house built then may have had its heat pump updated since, but the equipment running in it today still skews old enough that sourcing a failed reversing valve or a specific control board becomes its own problem. The repair scope a contractor can offer depends on what the opened system actually contains and what parts a supplier can still ship.
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 repair calls begin. When it fails, the system either runs constantly without moving heat or shuts down altogether. The condenser coil surrounds it, and a damaged or dirty coil drives the same symptoms.
Inside the house, the air handler contains the blower motor and the evaporator coil. The blower moves conditioned air through the home, and a failing motor shows up as weak airflow or no airflow at all. The reversing valve, which sits in the outdoor unit, is what lets the system heat in winter and cool in summer, and a stuck valve is why a heat pump sometimes blows the wrong temperature.
The drawing shows a typical layout, and a licensed contractor determines which components apply to your specific system and what work each one needs.
Get matched in Alexander CountyAlexander County, Illinois, by the numbers
99 severe weather events were recorded in Alexander County, Illinois 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 Alexander County, Illinois were built in 1969 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesAlexander County, Illinois holds 2,938 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 77.6% of the occupied homes in Alexander County, Illinois (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Heat Pump Repair in Alexander County, Illinois1 sourced rules and standards
Licensing Rules for Contractors in Alexander County, Illinois
Illinois leaves HVAC licensing to the municipality: state law lets the corporate authorities of each city or village examine, license and regulate heating, air conditioning and refrigeration contractors, and caps the licence fee they may charge at $50 — so who licenses you depends on the town you work in.
Severe Weather Events in Alexander County, Year by Year
Weather in this part of Illinois puts real stress on heat pump systems, which run year-round and absorb the pressure of every temperature swing and storm cycle. How often that happens locally shapes how hard the equipment works and how quickly repair needs build up.
99 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.