AC Maintenance & Tune-Ups in Ann Arbor, Michigan

Here is what a Ann Arbor AC maintenance visit looks like from Temprasure: the condenser top comes off and the coil gets washed from the inside, the run capacitor gets a meter on it and a number written down, the contactor gets inspected, the refrigerant charge gets verified by superheat and subcooling, the drain gets flushed and the float switch gets tested. Then you get a plain-English summary. We do this for homes around Nichols Arboretum, through Burns Park, and everywhere else in 48103, and we would rather see you once in spring than twice in July.

Ann Arbor houses and what that means for ac maintenance

Ann Arbor gives us almost every housing type in one zip code. The Old West Side and Old Fourth Ward are full of 1880s–1920s frame houses with stone or rubble foundations, fieldstone basements that stay damp, and furnaces that replaced boilers or gravity units sometime in the 1960s or 70s. Many of those homes still have cast-iron radiators fed by a boiler, and a surprising number have both a boiler and a separate forced-air system added for cooling. Burns Park and Ann Arbor Hills houses are larger 1920s–50s builds with plaster walls, so getting a second return or a bigger supply trunk in is slow work. The ranches and split-levels of the west side were built with 80,000 to 100,000 BTU furnaces that are now oversized for insulated versions of the same house. Condos near Briarwood and Pittsfield Village often have furnaces in closets or attics with tight clearances. Student rentals near campus run the oldest equipment in the city, and landlords routinely call us for emergency service and new-purchase inspections.

Tree cover is what makes Ann Arbor condensers so dirty by midsummer. Mature cottonwoods, maples and the lawn being mowed on the AC side of the house pack the coil fins with fluff and clippings by the end of June, and a condenser that cannot shed heat runs at higher pressure, draws more current from DTE Energy, and cooks its own compressor. We wash the coil from the inside out on every Ann Arbor maintenance visit rather than hosing the outside, which just drives debris deeper into the fins. For homes near Nichols Arboretum where the trees are oldest, we often suggest a second quick rinse in early July, and we show homeowners how to do it safely.

Ann Arbor sits 7 miles from our shop, close enough that a no-cooling call near Ann Arbor Hills or Michigan Stadium is often answered within hours. The pre-war two-stories and 1950s–60s ranches, with university-era infill on every side that dominate the housing here were built for furnaces, with central air added later on ductwork sized for heating, and that history shows up as frozen coils and short-cycling compressors every July. We check static pressure on every Ann Arbor cooling call because fixing the airflow is what keeps the next capacitor from dying. DTE Energy heats most of these homes; DTE Energy powers the condensers, and both matter when we size a replacement.

Local details we plan around in Ann Arbor

• Ann Arbor has its own building department with its own mechanical permit process, and inspectors here want to see combustion air, condensate routing and flue sizing done by the book.
• The large number of boiler-and-radiator homes means we see hydronic work here far more than anywhere else in our radius.
• Fieldstone foundations in the oldest neighborhoods sweat enough that furnace cabinets and water heater bases corrode early unless they sit on blocks or a pad.
• The Huron River cuts a deep valley through the north side of Ann Arbor, and the Northside, Lower Town and Gallup Park neighborhoods feel it as morning fog, heavier dew and basements that sweat in July. The downtown core holds heat with all its brick and pavement, so attics and upper floors there run several degrees hotter than the leafy blocks of Burns Park and the Old West Side, where mature oaks and maples shade roofs and cut peak cooling loads noticeably.