The Fix-It Playbook — AC Running Nonstop Diagnostic Checklist

AC running around the clock and still not reaching the set temperature? Work down this list to the reason it can't catch up.

Eight things make an AC run without ever satisfying the thermostat. Four you can check and fix in an afternoon. Four are sizing, duct or refrigerant problems that need a pro's judgment. Knowing which group you're in is what saves the service call.

On one printable page: all eight causes in the order to check them, the tell for each, and exactly where the line sits between DIY and pro.

Free instant PDF download. Yours to print and keep.