Why is my AC running but not cooling?
The most common causes are a clogged air filter, a dirty outdoor coil, a tripped breaker or blown fuse, a failed capacitor, or low refrigerant from a leak. Some you can check yourself; others need a technician.
- Check the filter and replace it if it's dirty
- Make sure the outdoor unit isn't blocked by leaves or plants
- Check the breaker for both the indoor and outdoor units
- If there's ice on the lines or coil, switch to fan-only or off and call
Should I repair or replace my air conditioner?
Repair makes sense for a younger system with a single failed part. Replacement is worth pricing when the system is older, needs a major part like a compressor, or keeps breaking down.
Ask the contractor for both prices in writing so you can compare them properly.
Do you help with heat pumps too?
Yes. Heat pumps heat and cool with the same outdoor unit, so a fault can show up in summer or winter. We take calls about both.
For furnaces, see furnace repair.
Frequently asked questions
Is no AC an emergency?
It can be, especially for elderly people, infants or anyone with health conditions during a heat wave. Call 865-321-8269 and tell us who's in the home.
How often should AC be serviced?
Most manufacturers recommend yearly maintenance, usually in spring before the cooling season.
Updated 2026-10-07