AC Maintenance in Winona, MN
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 Winona County will get in touch.
Tell us about the job
It takes about a minute.
Three months of work, then months of sitting still
Your air conditioner in Winona County works hard for a short stretch. It runs June through August, cooling homes through afternoons that average 80°F, then sits idle the rest of the year. A tune-up before summer checks it after months of standing still and catches what would otherwise show up as a breakdown once the heat sets in.
Winona County has also logged 83 hail events and 63 damaging wind events over the past ten years, with hail up to 3 inches recorded. The outdoor unit sits outside through all of that weather. A service visit is a chance to look over the coil and cabinet for dents or damage before the unit has to run hard against the summer heat.
- 3 months
- June through August, your air conditioner is on duty
- 80°F
- the average summer afternoon it cools against
- 83 hail events
- in ten years, and hail bends the fins on outdoor coils
- 63 wind events
- in ten years, and wind drives debris into outdoor units
NOAA nClimDiv, 1991–2020 normals
Book your AC tune-up in May, before homes here start needing cooling in June.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.
Minnesota has no state license for HVAC contractors.
There is no state record to check here. Minnesota does not license or register HVAC contractors, so no license number or exam sits behind the person coming to your house, and the state keeps no file on who does this work in Winona County.
What still applies is federal. Routine air conditioner maintenance can include checking or handling refrigerant, and any technician who opens that side of the system has to hold EPA Section 608 certification, no matter what state they work in. That rule covers the refrigerant itself, not the rest of the visit.
Source: Minnesota Office of the Revisor of Statutes
- What does AC maintenance include?
- A technician checks refrigerant pressure, cleans the condenser coil, and tests the capacitor and contactor in the outdoor unit. Inside, they check the evaporator coil and the condensate drain, since a clogged drain can back up and cause water damage. They also check the filter and look at electrical connections for wear. Because opening the refrigerant lines requires EPA Section 608 certification, that part of the job has to be done by someone who holds it.
- How often does an air conditioner need maintenance?
- Once a year, before it has to run hard. Here that means getting it checked before June, since the unit only carries the load from June through August. A yearly check catches a weak capacitor or a dirty coil before an 80°F afternoon finds it first.
- Is AC maintenance worth it?
- Yes, especially somewhere the AC only runs three months a year and then has to work right away. A unit that sat unused most of the year can have a coil caked with dust or a capacitor that has weakened, and the first hot stretch is a bad time to find out. Regular maintenance also gives a technician a chance to spot wiring or coil damage from hail or wind, which matters here given the storm history.