Heat Pump Maintenance in Ann Arbor, Michigan
Ann Arbor is about 16 minutes from our shop in Ypsilanti. A heat pump runs twelve months a year, so it needs two tune-ups: one before heating season to verify defrost and backup, one before cooling season to clean coils and check the charge.
Temprasure maintains every brand of air-source heat pump in Ann Arbor, from the dual-fuel systems installed on top of gas furnaces in the pre-war two-stories and 1950s–60s ranches, with university-era infill on every side around Bryant and Arbor Oaks to the standalone units with electric backup in the newer 48103 subdivisions. Two visits a year, both instrument-based, both ending with a written report of the readings. The service agreement bundles them with priority scheduling for the January night the unit ices over, and Washtenaw County homeowners on the plan get first pick of fall and spring dates. No parts get replaced that are still in spec.
Ann Arbor houses and what that means for heat pump 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.
Dual-fuel systems are the most common heat pump setup in Ann Arbor, and the balance point is the maintenance item that matters most on them. A heat pump paired with a gas furnace in a pre-war two-stories and 1950s–60s ranches, with university-era infill on every side home near Bryant and Arbor Oaks should hand off to the furnace at an outdoor temperature set by the equipment's capacity curve and the current DTE Energy gas and electric rates. Installers often leave it at a default that is either too high, so the furnace runs on days the heat pump should own, or too low, so the heat pump grinds through cold it cannot handle. On every fall visit in Ann Arbor, MI we check the outdoor sensor, review the balance point and reset it if the rates or the equipment say it should move. It is a ten-minute adjustment that changes the whole winter's bill.
Ann Arbor winters are long enough that a furnace runs more hours in a year here than an air conditioner runs in five. We maintain and repair the gas furnaces in the pre-war two-stories and 1950s–60s ranches, with university-era infill on every side near Nichols Arboretum and the Kerrytown Market, the hot-water boilers in the older houses around Burns Park, and the furnaces in newer subdivisions out toward Old Fourth Ward where builder-grade equipment hits its first real failures around year ten. The shop is 7 miles away, the truck carries the parts that fail, and a heating call in Ann Arbor ends with heat on the first visit far more often than not.
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.
- The city's water is treated at its own plant and softened, so water heater sediment is lighter here than in surrounding townships on well water.
- 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.
What Ann Arbor homeowners call about
Outdoor unit sitting in ice
Defrost water freezing under the unit and building up over the winter restricts airflow and stresses the fan. A fall visit checks clearance, drainage and the riser stand.
Weak cooling and a dirty outdoor coil
A coil that cycled through frost all winter is packed with debris by spring. Cleaning it before cooling season restores capacity and protects the compressor.
You are not sure what is normal
New heat pump owners often cannot tell a failing system from a working one. A tune-up explains what the equipment is doing and gives you a baseline.

Covered on a Ann Arbor visit
- Contactor inspection and compressor and fan amp draws
- Outdoor coil cleaning, washed from the inside out
- Reversing valve operation verified in heating and cooling
- Indoor coil inspection and condensate drain flush with float switch test
- Filter, blower and static pressure check
- Outdoor unit clearance, riser stand and defrost drainage inspection
How a heat pump maintenance call works
Fall: defrost, reversing valve and backup
Defrost board and sensor tested, a defrost cycle observed start to finish, reversing valve verified in both modes, heating-mode charge checked, backup strips or furnace and balance point confirmed, outdoor clearance and drainage checked.
Both visits: airflow and controls
Filter and blower checked, static pressure and temperature split recorded, thermostat mode switching and staging verified, low-voltage wiring inspected for rodent and weather damage.
Report and recommendations
The readings in writing, what is in spec and what is drifting, and flat-rate prices on anything we recommend. No parts replaced that do not need it.
Reviews from nearby homeowners
★★★★★Excellent quality service and a trustworthy company — honest inspections. You will definitely get your money's worth. An overwhelmingly great experience.
Heat Pump Maintenance questions from Ann Arbor
How long does a heat pump tune-up take?
About an hour to an hour and a half at a Ann Arbor home. The fall visit can run longer because we wait to observe a full defrost cycle. Anyone done in 15 minutes did not test the winter components.
Does maintenance keep my Ann Arbor heat pump's warranty valid?
Most manufacturers require documented annual maintenance for parts warranty claims, especially on compressors and reversing valves. The written report with readings we leave is that documentation.
Why is my Ann Arbor winter electric bill so high if the house is warm?
The heat pump has likely handed the load to the electric strips, which still warm the house at several times the cost. A tune-up finds the defrost, sensor or charge problem behind it and verifies the strips only run when they should.
Is it normal for my Ann Arbor heat pump to steam and blow cool air in winter?
Yes, briefly, during a defrost cycle. Defrost every few minutes, a cycle that never ends, or an outdoor unit that never clears its ice is a problem, and the fall tune-up is where we catch it.
Do you check the furnace on my Ann Arbor dual-fuel system?
Yes, on the fall visit. We confirm the furnace is healthy, verify the balance point on the thermostat, and make sure the two systems stage together correctly for current DTE Energy rates.
Serving every part of Ann Arbor
If nobody has checked the defrost cycle, the outdoor sensor or the balance point on your 48103 heat pump since the day it was installed, now is the time, before the next cold snap puts the house on strip heat. Call Temprasure and we will come out from Ypsilanti with the instruments to do it right, set what has drifted, and leave you the numbers in writing.
Neighborhoods and areas we run to regularly: Ann Arbor Hills, Lansdowne, Old West Side, Dicken, Kerrytown, Water Hill, and the rest of Ann Arbor.
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Heat Pump Maintenance nearby
Heat Pump Maintenance in Ann Arbor, quoted before we start
Call or text (313) 701-9471. Ann Arbor is a 16-minute run for us and we are open around the clock.