AC Repair in Ames, IA
Air conditioners here run from June through August. If yours quits, tell us what it's doing and a licensed contractor who covers Story County will get in touch.
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Three months of hard running, then storms
Your air conditioner in Ames only gets three months to prove itself, June through August, and it works hard in that stretch. Summer afternoons average 82°F, so the compressor runs long hours to keep up. That steady load wears on the run capacitor and the contactor, the parts that keep the compressor starting and running through the afternoon heat. When one of those goes, the unit either won't start or runs and stops on its own.
Story County has also logged 113 hail events and 82 damaging wind events over the past ten years, with hail as large as 2.5 inches. Hail that size can bend the thin aluminum fins on the outdoor coil, and wind can rock the unit on its pad or throw debris into it. A coil with crushed fins can't shed heat the way it should, and you notice it as an AC that runs all afternoon without the house cooling down.
- 3 months
- June through August, your air conditioner is on duty
- 82°F
- the average summer afternoon it cools against
- 113 hail events
- in ten years, and hail bends the fins on outdoor coils
- 82 wind events
- in ten years, and wind drives debris into outdoor units

NOAA nClimDiv, 1991–2020 normals
A new air conditioner would save little on running costs in Story County, so the repair decision comes down to the unit's condition.
Estimates for a typical Story County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Iowa 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.
Iowa requires HVAC contractors to hold a state license.
The Iowa Plumbing and Mechanical Systems Board issues that license, and it attaches to the contractor, not to any single job. The board tested the contractor before granting it and keeps a record of who holds one, so the license is tied to the person or company doing the work, not to your address or your specific repair.
For an air conditioner repair in Story County, that state license is what stands behind the work. If the repair calls for opening the refrigerant side of your system, which most compressor and coil repairs do, the technician also needs EPA Section 608 certification. That is a federal requirement in every state, not something Iowa adds on top, and it exists because refrigerant handling is regulated at the federal level no matter who licenses the contractor.
Sources: Iowa Legislature · Iowa Department of Inspections, Appeals and Licensing
- Why is my AC not blowing cold air?
- The most common cause is a dirty air filter choking off airflow, so start there before anything else. A clogged filter can freeze the evaporator coil, and once that coil ices over, the air coming out feels warm instead of cold. Low refrigerant from a leak causes the same thing, but only a licensed contractor holding EPA 608 certification can legally check refrigerant levels or touch that side of the system. If the filter looks clean and the air is still warm, the compressor or a failed capacitor could be the reason, and that calls for a contractor to look at it.
- Why is my AC leaking water?
- Most of the time this means 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 season of running, and here that season stretches from June through August. It can also mean the evaporator coil froze and is now thawing, which points back to restricted airflow from a dirty filter or a fan problem. Either way, water where it does not belong means the AC needs to be shut off until someone looks at it, since it can damage the furnace or the floor below it.
- Why won't my AC turn on?
- Check the thermostat first. Dead batteries or a setting bumped off cool will stop the system before it ever starts. If the thermostat looks right, check the breaker, since a tripped breaker or a blown fuse at the outdoor unit will keep it from powering on at all. Ames has seen 82 damaging wind events over the past ten years, so a power blip or surge is a real possibility. If the breaker is fine and it still will not start, the capacitor or the contactor has likely failed, and that is a job for a licensed contractor to diagnose.


