AC Maintenance in Miles City, MT
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 Custer County will get in touch.
Tell us about the job
It takes about a minute.
Three months of hard running, then months of sitting still
Your air conditioner in Custer County works hard for a short stretch. June through August, with afternoons averaging 84°F, it does nearly all its work for the year, then sits idle the rest of it. That kind of stop-and-start life wears on a system in its own way. The capacitor, the contactor, the fan motor, all sit unused for months and then get asked to carry a full summer load right away.
Custer County also sees its share of hail and wind. Ten years of records show 65 hail events and 94 damaging wind events in the area, with hail up to 2.75 inches. That kind of weather can bend the fins on your outdoor coil or knock the unit out of level, and it is not always obvious from the ground. A maintenance visit before the season checks the coil, the fan, and the electrical parts while there is still time to fix a problem before the first hot week.
- 3 months
- June through August, your air conditioner is on duty
- 84°F
- the average summer afternoon it cools against
- 65 hail events
- in ten years, and hail bends the fins on outdoor coils
- 94 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.
Montana requires HVAC contractors to hold a state license.
That license is held by the contractor, not issued job by job. Montana carves out one exception. Work under $2,500 does not need a licensed contractor, and routine maintenance on an air conditioner often costs less than that, so this visit may fall outside the license requirement entirely.
Whether or not this job needs the state license, the refrigerant side of the work is covered a different way. Any technician who opens that part of the system to check the charge has to hold EPA Section 608 certification. That rule comes from the federal government, not Montana, and it applies on this job no matter what the license threshold says.
Source: Montana Legislature
- What does AC maintenance include?
- A technician cleans the condenser coil, checks the refrigerant charge, and tests the capacitor and contactor in the outdoor unit. They also check the evaporator coil, change or check the filter, and make sure the condensate drain is clear. On top of that, they check that the thermostat is calling for cooling correctly and the system is pulling the temperature down the way it should. Anyone opening the refrigerant side of the system has to hold EPA 608 certification, which any licensed contractor's technician will have.
- How often does an air conditioner need maintenance?
- Once a year, before the season it will actually run. Here that means getting it checked before summer, since the unit only runs June through August. Summer afternoons average 84°F, so the system works hard in a short window and needs to be ready before it starts. A yearly check also catches wear before a hot afternoon turns it into a breakdown.
- Is AC maintenance worth it?
- Yes, mainly because it catches small problems before they turn into a system that quits on a hot day. A dirty coil or a weak capacitor can make an air conditioner run longer and harder without cooling as well, and neither is obvious until the unit struggles or stops. Hail and wind are common here too. This area has had 65 hail events and 94 damaging wind events over the last ten years, and an outdoor unit that took a hit is easier to catch during a routine check than after it fails.