AC wont kick on

[Kvothe]

I have a ducted electric split system and the AC just stopped working. I made no changes to thermostats, etc and ensured the batteries are new and that its set to cool at a lower temp. The blower turns on if I put it in the On position but not in auto. The run capacitor in the outdoor unit tested bad so I replaced it. What are the possible problems that I need to troubleshoot?

Thanks!

 

[Stuff]

When is the last time you had the system serviced? Possible that it just needs cleaned

Sometimes thermostats fail. Try twisting the R, G, and Y together (add O if heat pump). That should turn cooling on.
Otherwise might be bad wire. Possible but not likely condensate overflow switch tripped.