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

AC Maintenance in Michigan City, IN

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 LaPorte County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
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.

Three months of hard running, then months of sitting idle

Your air conditioner in Michigan City works three months a year, June through August, with summer afternoons averaging 81°F. That's a short season, and the unit has to run hard and steady through it. The rest of the year it sits idle, and dust settles in the coil while moisture works on the electrical connections.

LaPorte County has also seen 32 hail events and 60 damaging wind events over the past ten years, with hailstones as large as 3.5 inches. That kind of weather can bend the fins on the outdoor coil or jar the unit out of alignment without you noticing right away. A tune-up before the season starts catches a bent coil, a weak capacitor, or a corroded connection before it turns into a system that won't start on the first hot day.

3 months
June through August, your air conditioner is on duty
81°F
the average summer afternoon it cools against
32 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 illustration of a cutaway single-story house showing interior rooms, ductwork running from an indoor air handler, and an outdoor condenser unit on a pad beside the building.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

Overhead view of an air conditioning condenser unit on a concrete pad next to a house with asphalt shingle roofing and vinyl siding.

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.

In Indiana, HVAC licensing for homes is left to the counties and cities.

Indiana leaves HVAC rules to local government, so whether LaPorte County or the cities within it license, register, or say nothing about who can do this work depends on the address. There is no state exam behind the person coming to your door, and no state record of them either. Whatever protection exists here comes from whatever the county or city has put in place, not from Indiana.

For a maintenance visit on an air conditioner, the one protection that holds everywhere in the country is federal. Anyone who opens the refrigerant side of your system has to hold EPA Section 608 certification, which means they were tested on handling refrigerant safely and are legally allowed to do it. A routine maintenance visit does not always involve opening that side of the system, but when it does, this is the credential behind it, regardless of what LaPorte County does or does not require.

Sources: Indiana Department of Workforce Development · State of Indiana

What does AC maintenance include?
A technician checks the refrigerant charge, cleans the condenser coil outside, and tests the capacitor and contactor that get the compressor running. They also check the evaporator coil, clear the condensate drain so it doesn't back up, and change or check the filter. Then they check that the system is actually cooling to the temperature you set, and look at the electrical connections while everything is open.
How often does an air conditioner need maintenance?
Once a year, in spring before the heat sets in. Here that means getting it done before June, since your cooling season runs June through August. A yearly check catches a weak capacitor or a low refrigerant charge before it fails on the first 81 degree afternoon.
Is AC maintenance worth it?
Yes, because most of what fails in an air conditioner shows warning signs before it quits. A weak capacitor, a dirty coil, a clogged drain line, these all get caught in a maintenance visit instead of turning into a no-cool call in August. With only three months of real cooling weather here, you want the system working on the days you actually need it.