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A compressor that has been sitting off since late August is the first thing a contractor checks when a Putnam County system fails to cool on a July afternoon. Homes in Putnam County, NY run cooling about two months a year, from July through August. Contactors corrode, capacitors drift, and refrigerant leaks that would show up quickly under sustained load can hide through a long off-season. The fault was already there before the heat arrived.
Ductwork in a house this old carries the history of every system that has run through it. Seams seal, then open. Runs get extended, capped, or rerouted as equipment changed. Half the homes in Putnam County, New York were built in 1968 or earlier (2020-2024 ACS 5-year). By the time a contractor opens a failing central AC unit, the duct system behind it may be the reason the repair quote goes one direction or another, because a leak or a blockage upstream changes what the equipment is actually being asked to do. The unit gets opened first, but the ductwork decides how far the job goes.
The Parts of a Central AC a Contractor Checks First
The outdoor condenser unit sits outside the house, usually on a concrete pad at ground level, and it sheds heat collected from inside. A refrigerant leak, a failed capacitor, or a seized compressor inside that cabinet are where a contractor often starts when the system stops cooling. The indoor air handler or furnace coil lives in a utility closet, attic, or basement and moves cooled air into the home.
The refrigerant lines run between the two units, carrying the fluid that makes the exchange possible. A contractor will also check the expansion valve, the electrical contactors, and the thermostat, each of which can stop the whole system even when every larger component is intact.
The drawing shows a typical layout, and a licensed contractor determines exactly which components apply to your house and its setup.
Get matched in Putnam CountyPutnam County, by the numbers
75 severe weather events were recorded in Putnam 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 Putnam County, New York were built in 1968 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesPutnam County, New York holds 38,450 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 83.8% of the occupied homes in Putnam 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 Putnam County, New York8 sourced rules and standards
What happens during HVAC repair in Putnam 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 Putnam County
Extreme weather puts real strain on central AC systems, and that strain accumulates over years of hard summers and sudden shifts. Repair needs in Putnam County are shaped by local conditions, and the history below shows what the equipment here has been working through.
75 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.