Aerial view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding and a sliding glass door.

AC Repair in Detroit, MI

Air conditioners here run from June through August. If yours quits, tell us what it's doing and a licensed contractor who covers Wayne County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Overhead view of a gray outdoor AC condenser unit on a concrete pad beside a mulched garden bed and a house with vinyl siding.

Three months of hard running, then storms on top of it

Your air conditioner in Wayne County only gets three months to prove itself, June through August, and summer afternoons averaging 82°F push it to run long stretches during that short window. That kind of steady demand wears on the capacitor and the compressor, the parts that carry the load every time the system cycles on.

Wayne County has also logged 142 damaging wind events and 23 hail events over the past ten years, with hail up to 1.75 inches. Wind can knock the outdoor unit's cabinet or fan out of alignment, and hail that size can dent the fins on the condenser coil. When the coil is bent or blocked, the system struggles to release heat, and you notice it as warm air inside or a unit that runs constantly without catching up.

3 months
June through August, your air conditioner is on duty
82°F
the average summer afternoon it cools against
23 hail events
in ten years, and hail bends the fins on outdoor coils
142 wind events
in ten years, and wind drives debris into outdoor units
Isometric line illustration of a cutaway house showing interior rooms, ceiling ductwork connected to an indoor air handler, and an outdoor condenser unit linked by refrigerant lines.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

Aerial view of a square outdoor air conditioning condenser unit on a concrete pad beside a house wall with a sliding glass door.

A new air conditioner would save little on running costs in Wayne County, so the repair decision comes down to the unit's condition.

  • A new one at the federal minimum, 13.4 SEER2$270 a year
  • An older air conditioner$290 a year

Estimates for a typical Wayne County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Michigan fuel prices and NOAA climate normals. Your home will differ.

Repair makes sense when a part like a capacitor or contactor has failed.

Replacement makes sense when the compressor has failed or the system uses R-22 refrigerant, which is no longer made.

Michigan requires HVAC contractors to hold a state license.

The Board of Mechanical Rules is who tests and licenses HVAC contractors in Michigan, and the license belongs to the contractor, not to any single repair. That means the same license covers a small fix and a full installation alike, so the record you'd be checking is on the business itself, not on this particular job.

For an air conditioner repair, the part that matters most is the refrigerant line, and that's covered separately. Any technician who opens the refrigerant side of your system, in Michigan or anywhere else, has to hold EPA Section 608 certification. That's a federal requirement, not something the state license replaces or repeats. Between the two, the state license accounts for the contractor's standing to do the work, and the federal certification accounts for the handling of the refrigerant itself.

Sources: Michigan Legislature · Michigan Department of Licensing and Regulatory Affairs

Why is my AC not blowing cold air?
The most common reason is a dirty air filter choking off airflow across the coil. When that happens, the coil can freeze over and the air coming through the vents turns warm. A refrigerant leak causes the same thing, but that's not something you can check yourself. Check the filter first. If it's clean and the air is still warm, have a contractor look at the refrigerant charge.
Why is my AC leaking water?
Your AC makes water as it cools the air, and that water is supposed to drain outside through a condensate line. If that line clogs, the water backs up and drips inside instead, often near the indoor unit or furnace. A frozen coil that's thawing out will do the same thing, so if the air wasn't cold beforehand, that's likely the cause. Either way, a contractor can clear the line or find out why the coil froze.
Why won't my AC turn on?
Start with the thermostat. Check that it's set to cool and the temperature is below the room temperature, since a dead battery or wrong setting is a common cause. If the thermostat looks right, check the breaker for the outdoor unit, since a tripped breaker will keep it from starting at all. Detroit has had 142 damaging wind events over the past ten years, and a power surge during a storm can trip a breaker even after the power's been restored. If the breaker keeps tripping, have a contractor check it out rather than resetting it repeatedly.