Heat Pump Repair in Ann Arbor, Michigan

Not every HVAC company in Washtenaw County is comfortable with heat pumps, and some will tell a Ann Arbor homeowner to replace a unit that needs a defrost sensor. Temprasure is not one of them. We repair air-source heat pumps throughout Ann Arbor, MI, we understand the balance point on a dual-fuel system and why it matters for your DTE Energy bill, and we show you what failed before quoting a flat-rate repair. The owner answers the phone, the truck is stocked with defrost boards, sensors and contactors, and Ann Arbor is about 16 minutes away from our shop.

Ann Arbor houses and what that means for heat pump repair

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.

Most heat pumps in Ann Arbor were installed as replacements for central air in the pre-war two-stories and 1950s–60s ranches, with university-era infill on every side around Pittsfield Village, paired with the existing gas furnace as a dual-fuel system. That setup is a good fit for a Washtenaw County winter, but it depends on a changeover that a lot of installers never set correctly. If the thermostat or outdoor sensor hands off to the furnace at 45 degrees, the heat pump barely runs and the DTE Energy rebate math never pays off. If it hands off at 15, the heat pump grinds through cold nights it cannot handle. On every dual-fuel repair in Ann Arbor, MI we check the balance point against the equipment's capacity and the current rates and set it where it belongs.

A no-heat call from 48103 gets priority in winter, and the drive from Ypsilanti to Ann Arbor is about 16 minutes. The houses here, from the pre-war two-stories and 1950s–60s ranches, with university-era infill on every side around Burns Park and Dicken to the newer builds near Water Hill, run almost entirely on DTE Energy, and the failures we see are the same ones we see everywhere in Southeast Michigan: dirty flame sensors, failed hot-surface ignitors, stuck pressure switches, cracked exchangers on furnaces that should have been retired. We diagnose with a combustion analyzer and a manometer, not a flashlight, and we show you the reading before we quote the repair.

Local details we plan around in Ann Arbor

• The city's two historic districts, the Old West Side and the Old Fourth Ward, regulate exterior changes, so condenser placement on a street-facing wall often needs Historic District Commission sign-off.
• 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.
• A lot of pre-1950 houses have been converted to duplexes or student rentals, which means two systems crammed into one basement and undersized gas lines serving both.
• 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.