The Fix-It Playbook — AC Freezing Up Diagnostic Checklist

Ice on the coil or the copper lines? That's not your AC working hard — it means it has stopped working.

Almost every frozen AC comes down to airflow, and there are four places it goes wrong. This walks the safe way to thaw it first, then the order to check vents, filter, evaporator coil, blower and condenser coil — plus the one cause that isn't airflow at all and needs a licensed pro.

On one printable page: the thaw procedure, the four airflow causes with the tell for each, and the point where it stops being a DIY job.

Free instant PDF download. Yours to print and keep.