Hello my theromostat keeps changing to 76 degrees, despite turning off eco mode and learning, I have reset all settings and the temp is always set to 71 and never changed. Upon speaking to others they are having this same issue for the past few weeks! Help!
When you write, "the temp is always set to 71", do you mean that you've set up a schedule with a temperature of 71 at every set point time? That is the best way to tell the Nest to maintain 71.
If instead you set the temperature by twirling the dial to 71, the Nest will obey you only until the next set point of its schedule, and then it will revert to the schedule. I don't know whether the Nest comes with a built-in schedule that you might not have known about, but if that is set to 76 it would explain the behavior.
Also make sure that Home/Away Assist is off. I would also set the Eco temperature to 71, just in case it gets turned on mysteriously.