Aerial view of a gray central air conditioning condenser unit on a concrete pad next to a house with vinyl siding.

AC Maintenance in Adrian, MI

Air conditioners here run from June through August, so May is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Lenawee County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An outdoor air conditioning condenser unit on a concrete pad next to the gray vinyl siding of a residential home.

Three months of heat, then a long rest

Your air conditioner in Adrian only has to work June through August, when summer afternoons average 81°F. That is a short stretch, and then the system sits unused the rest of the year.

A system that sits idle that long can be slow to start clean when the first hot day comes. A tune-up before summer checks the parts that matter, the refrigerant charge, the electrical connections, the condenser coil, so the first hot afternoon is not the day you find out something did not survive the winter.

3 months
June through August, your air conditioner is on duty
81°F
the average summer afternoon it cools against
11 hail events
in ten years, and hail bends the fins on outdoor coils
60 wind events
in ten years, and wind drives debris into outdoor units
Isometric grayscale illustration of a cutaway house showing interior rooms, ceiling ductwork connected to an indoor air handler, and an outdoor condenser unit linked by lines along the exterior wall.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

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.

Book your AC tune-up in May, before homes here start needing cooling in June.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.

Michigan requires HVAC contractors to hold a state license.

Michigan's Board of Mechanical Rules issues that license, and it covers the contractor, not each job. That is the state's record of who is allowed to do this work, separate from any single visit or any single home.

For a maintenance visit on your air conditioner, that license is what stands behind the person working on your system. If the technician opens the refrigerant side to check the charge or service the coil, they also need EPA Section 608 certification, which every technician in the country is required to hold for that part of the job, on top of whatever their state requires.

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

What does AC maintenance include?
A technician checks the refrigerant charge, cleans the outdoor coil, and tests the capacitor and contactor in the condenser. Inside, they check the evaporator coil and the condensate drain, since a clogged drain is one of the more common reasons an AC stops cooling. They also check the filter and confirm the system is cycling on and holding the temperature you set.
How often does an air conditioner need maintenance?
Once a year is enough for most systems, done in spring before the heat sets in. Here in Adrian that gives the unit a check before the three months it actually has to work, June through August. Skipping a year does not ruin the system, but a coil that stays dirty or a capacitor that is starting to weaken tends to get found the hard way, on a hot afternoon when the AC quits.
Is AC maintenance worth it?
Yes, mainly because it catches the small failures before they become a system that will not turn on. A weak capacitor or a dirty coil still runs, just worse, and that kind of wear is easy to miss until the day the AC does not start. It is worth asking about after a hard storm too. Adrian has had 60 damaging wind events and 11 hail events over the past ten years, and a unit that took a hit outside is worth having looked at.