An outdoor air conditioning condenser unit mounted on a concrete pad next to a blue-sided residential house at sunset.

AC Repair in Cheyenne, WY

Air conditioners here run from July through August. If yours quits, tell us what it's doing and a licensed contractor who covers Laramie County will get in touch.

Tell us about the job

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Step 1 of 3: Equipment
An outdoor central air conditioning unit mounted on a concrete pad beside a blue-sided house at sunset.

Cheyenne's cooling season is short but hard on an AC

Your air conditioner only earns its keep from July through August here, about two months a year. That short a season means the unit sits idle most of the time, then gets asked to run hard on the afternoons that hit 82°F and above. A capacitor or contactor that sat unused all winter is the kind of part that fails on that first real hot stretch.

Laramie County also sees a lot of hail and wind, 369 hail events and 1,869 damaging wind events over the last ten years, with hailstones as large as 4.25 inches. That kind of storm can bend the fins on your outdoor coil or knock the unit around enough to loosen a wire or refrigerant line. If your AC was running fine before a storm and struggling after, the outdoor unit is where to look.

2 months
July through August, your air conditioner is on duty
82°F
the average summer afternoon it cools against
369 hail events
in ten years, and hail bends the fins on outdoor coils
1,869 wind events
in ten years, and wind drives debris into outdoor units
Isometric line illustration of a cutaway house showing interior rooms, a furnace or air handler with ductwork, and an outdoor condenser unit beside the building.
Your air conditioner works hardest from July through August.

NOAA nClimDiv, 1991–2020 normals

An outdoor air conditioning condenser unit positioned on a concrete pad next to a blue-sided house, surrounded by green shrubs and flowering hydrangeas at sunset.

A new air conditioner would save little on running costs in Laramie County, so the repair decision comes down to the unit's condition.

  • A new one at the federal minimum, 13.4 SEER2$140 a year
  • An older air conditioner$160 a year

Estimates for a typical Laramie County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Wyoming fuel prices and NOAA climate normals. Your home will differ.

Repair makes sense when a part like a capacitor or contactor has failed.

Replacement makes sense when the compressor has failed or the system uses R-22 refrigerant, which is no longer made.

Why is my AC not blowing cold air?
The most common reason is a dirty air filter choking off airflow, so check that first. A low refrigerant charge from a leak will also do this, and so will a condenser coil outside caked with dirt or cottonwood fluff. If the filter is clean and the outdoor unit looks clear, the system likely needs a contractor to check the charge and the coil.
Why is my AC leaking water?
Usually the condensate drain line is clogged, and water is backing up instead of draining outside. Algae and dust build up inside that line over a cooling season and block it. A frozen evaporator coil will also cause a leak once it thaws, and that points to low airflow or low refrigerant rather than the drain itself.
Why won't my AC turn on?
Start with the thermostat batteries and the breaker for the outdoor unit, since both are easy to miss. If those check out, the capacitor that starts the compressor may have failed, which is a common reason a unit stays silent. Hail is common here, with 369 hail events over the past ten years, and a hard hit can damage the outdoor unit's fan or wiring, so it's worth a look after any storm.