Google Nest Community

So, my Nest thermostat says 2+ hours to cool 2 degrees. It cools sooner than that. Any reason, the estimated time is so off? Thanks!

So, just installed a NEST thermostat and I am getting this error message, N72. Was just on the phone with Google support and to be honest, they didn't really help me out. Now, I should note that I have a previous edition thermostat upstairs in my hou...