Google Nest Community

When my AC units kicks on, shortly after the outside unit makes a humming noise. It stops after a little bit but then will make it again every few minutes. It almost sounds like a timer going off on the unit. I have updated software, restarted thermo...

When my heat is on, it blows cool air and tries to kick the AC unit on. I do not have a heat pump though. I have a yellow, white, blue, green, and red wires. I assumed my blue wire was the common wire and put it in the location labeled c in an attemp...