An outdoor air conditioning condenser unit installed beside the exterior wall of a blue vinyl-sided house at sunset.

AC Maintenance in Sisseton, SD

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 Roberts County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Aerial view of a square outdoor air conditioning condenser unit on a concrete pad beside a house wall with a sliding glass door.

Three months of hard running, then months of standing still

Your air conditioner in Sisseton only earns its keep from June through August. Afternoons average 80°F, so the system runs to hold the house steady, then sits idle the rest of the year. That long rest is where trouble starts. A capacitor weakens sitting unused. A contactor's contacts pit. Dust settles on the coil while the system is off, and none of it shows up until the first hot afternoon asks the unit to work.

Roberts County has also logged 115 damaging wind events and 21 hail events over the past ten years, with hail as large as 2.5 inches. Wind-blown debris and hail can bend the fins on the outdoor unit's coil or damage the fan, and that kind of damage is not always obvious from the ground. A maintenance visit checks the outdoor unit and the electrical parts together, so anything the storms or the idle months caused gets caught before the system has to carry the next stretch of summer.

3 months
June through August, your air conditioner is on duty
80°F
the average summer afternoon it cools against
21 hail events
in ten years, and hail bends the fins on outdoor coils
115 wind events
in ten years, and wind drives debris into outdoor units
Isometric line illustration of a cutaway single-story house showing interior rooms with furniture, ceiling ductwork, an indoor air handler, and an outdoor condenser unit connected by lines along the exterior wall.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

Aerial view of a gray outdoor air conditioning condenser unit mounted on a concrete pad next to a house with 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 South Dakota, HVAC licensing for homes is left to the cities and towns.

South Dakota does not license HVAC contractors at the state level. That choice is left to each city and town, so whether a contractor needs a local license depends on where the house sits, and there is no state record of who is licensed or tested to check either way.

For a maintenance visit on an air conditioner, the part that matters most is the refrigerant. Any technician who opens the refrigerant side of the system, to check the charge or recover refrigerant, has to hold EPA Section 608 certification. That rule comes from the federal government, not the state, and it applies the same way here as it does everywhere else in the country. It is not a license, and it does not cover anything else about the visit, but it is the one credential that holds regardless of what the city requires.

Source: South Dakota Legislature

What does AC maintenance include?
A technician checks refrigerant pressure, cleans the coils, tests the capacitor, and looks over the electrical connections. They also check the condensate drain to make sure it's not clogged and confirm the thermostat is calling for cooling correctly. Anyone working on the refrigerant side has to hold EPA Section 608 certification, that's a federal requirement no matter who does the work. The filter gets checked too, though that's something you can handle yourself between visits.
How often does an air conditioner need maintenance?
Once a year, before the season it works hardest. Here that means getting it looked at before June, since your AC only runs June through August. A yearly check catches a weak capacitor or a low refrigerant charge before an 80°F afternoon turns it into a breakdown.
Is AC maintenance worth it?
Yes, because it catches small problems while they're still small. A worn capacitor or a dirty coil makes the unit work harder without cooling any better, and either one can leave you without AC on a hot afternoon. With only three months of cooling season here, you want the unit working right for all of it, not fighting through the summer on a weak part.