Just installed new Honeywell RTH7600. All wires are correct and the unit displays fine. The issue is that heater and AC do not turn on at all. I even put the fan to ON instead of AUTO and that does not turn on either. not sure what the issue is.
THe unit will display "Heat on" or "Cool on" to indicate that something should be happening. I hear a click from the unit, but nothing actually happens.
So far I ihave tried power cycling at the circuit breaker. But im thinking about first re-seating all the wires and second reinstalling the old unit to make sure that still works and that my ac/heater didn't just go out at the same time somehow.