AC Maintenance in Mankato, 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 Blue Earth County will get in touch.
Tell us about the job
It takes about a minute.
Three months of real work, then a long rest
Your air conditioner in Mankato earns its keep from June through August, and that is it. Summer afternoons average 80°F, warm enough that the compressor runs long stretches most days in those three months, then the unit sits unused the rest of the year.
Blue Earth County has logged 44 hail events and 50 damaging wind events over the past ten years, with hail up to 2.5 inches. That kind of storm can bend the fins on the outdoor unit or knock debris into it without leaving damage you would notice from the ground. A tune-up before the season starts is when a bent coil or a refrigerant level that has crept down gets caught, before the first hot week asks the unit to run flat out.
- 3 months
- June through August, your air conditioner is on duty
- 80°F
- the average summer afternoon it cools against
- 44 hail events
- in ten years, and hail bends the fins on outdoor coils
- 50 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.
Minnesota does not license HVAC contractors, and it does not register them either. There is no state test behind the person working on your air conditioner, no state file with their name on it. Whatever confidence you have in the contractor is not backed by a state credential, because Minnesota does not issue one.
For a maintenance visit, the part of the job with a rule behind it is the refrigerant. Any technician who opens the refrigerant side of your air conditioner, anywhere in the country, has to hold EPA Section 608 certification. Minnesota does not administer that certification and does not check for it. It comes from the federal government, and it is the one credential this job requires.
Source: Minnesota Office of the Revisor of Statutes
- What does AC maintenance include?
- A technician checks refrigerant levels, cleans the condenser coil, and tests the capacitor and contactor in the outdoor unit. Indoors, they check the evaporator coil and confirm the system is pulling enough airflow through the return and ducts. They also check the thermostat calls for cooling correctly and the drain line isn't clogged, since a blocked drain can back up and cause water damage. Only someone with EPA Section 608 certification can open the refrigerant side of the system, so ask about that if refrigerant work is involved.
- How often does an air conditioner need maintenance?
- Once a year, before the weather turns warm. Homes here only run the air conditioner from June through August, so getting it checked in spring means it's ready before those three months of heat hit. A yearly check also catches a weak capacitor or a dirty coil before it causes a breakdown during the hottest part of summer.
- Is AC maintenance worth it?
- Yes, especially somewhere that sees the storms this area does. Mankato has had 44 hail events and 50 damaging wind events over the past ten years, and hail up to 2.5 inches can bend the fins on an outdoor condenser coil or knock it out of alignment. A yearly check catches that kind of damage early, along with normal wear like a weak capacitor, before it leaves you without cooling on an 80°F afternoon.