What's actually wrong?
Not sure what's going on with your system? Start here — plain-English explanations of the most common issues, and when it's time to call.
Running but not actually cooling your home? Here's what's likely going on.
The most common causes when your AC is blowing warm instead of cold.
Grinding, squealing, or clicking — what different sounds usually mean.
No heat at all? Common causes before you call for an emergency visit.
Water around your indoor unit is common — here's what's usually causing it.
Blank screen, unresponsive, or not controlling your system correctly.