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A central AC compressor in this area spends the bulk of the year off. Homes in Orange County, NY run cooling about two months a year, from July through August. The contactor, the condenser fan motor, and the capacitor all sit dormant through fall, winter, and spring, and that long rest creates its own failure modes: corrosion on electrical contacts, seized bearings, and capacitors that test fine in March but fail on the first hot day in July. A contractor diagnosing a repair here checks those components before assuming age or wear is the cause, because a part that never ran still degrades.
Ductwork and refrigerant lines in a house this age were sized and routed for systems that have since been discontinued, replaced, and discontinued again. Half the homes in Orange County, New York were built in 1975 or earlier (2020-2024 ACS 5-year). When a contractor opens a unit here, what decides the scope of the job is whether the failed component is still being made, and if it is not, whether a functional substitute fits the existing configuration. That is a different question from what the thermostat reads or what the outdoor unit looks like from the driveway.
The Parts of a Central AC a Contractor Checks First
The outdoor condenser unit sits outside the house, usually on a concrete pad beside the foundation, and it is where the system sheds heat. The indoor air handler or furnace blower sits inside, most often in a basement, closet, or utility room, and it pushes conditioned air through the house. When either stops doing its job, temperatures drift and the system runs but nothing changes.
The evaporator coil sits directly above the air handler and is where the air cools before it moves into the ducts. Refrigerant lines run between the indoor and outdoor units, and the expansion valve, the capacitors, and the contactor all sit at points along that path. A contractor working through a repair will trace the problem to one or more of these pieces before any work begins.
The drawing shows a typical layout, and a licensed contractor determines what applies to your specific system and home.
Get matched in Orange CountyOrange County, New York, by the numbers
197 severe weather events were recorded in Orange 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 Orange County, New York were built in 1975 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOrange County, New York holds 149,699 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 67.8% of the occupied homes in Orange County, New York (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Central AC Repair in Orange County, New York8 sourced rules and standards
What HVAC Repair Actually Looks Like in Orange County
Split-system central air conditioners rated below 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners rated at or above 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners manufactured between January 1, 2015 and December 31, 2022 had to meet 13 SEER, the metric that preceded SEER2.
Single-package central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Space-constrained central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 11.7 SEER2.
Federal efficiency standards for split-system central air conditioners and heat pumps are set on each certified combination of outdoor unit and indoor coil rather than on the outdoor unit alone.
Residential and light commercial air conditioning and heat pump systems assembled in the field, including mini-splits and unitary systems, may not be installed on or after January 1, 2025 using a refrigerant with a global warming potential above 700.
A field-assembled system whose specified components were all manufactured or imported before January 1, 2025 carries no installation compliance date under the refrigerant restrictions and may still be installed.
Severe Weather Events in Orange County
Weather puts a load on HVAC equipment. What that load looks like in Orange County shapes how hard the system works and how often it needs attention.
197 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.