Yes there was another thermostat before and no I do not have a picture
of that configuration. I will post pics of the control block in the
furnace handler. And yes there are just 4 wires.I had a professional
come out today and he wanted me to ask if ...
I had my furnace replaced 12/2021. I bought the Nest thermostat then and
installed it at that time. It worked fine for the heat. This is the
first time I have tried to use it with the a/c. I have a photo of the
wiring, but am unsure how to attach it ...
