My nest thermostat within the last week or so has started changing the temperature, usually 10+ degrees out of our regular range with seemingly no pattern. We live in michigan where it's currently FREEZING and we came home the other day to the house cold and the thermostat set to 58° when I specifically remembered putting it on 67⁰ before leaving. A couple days before that we thought it was warm and realized it changed itself to 80⁰. This has happened about 4 times now in about a week maybe week and a half.
I have no schedule on it, eco turned off, home and away is off. I do not control it from an app, we only manually change it on the wall. We have lived here for over 6 months and it has only just recently started. I've Googled and found no answers that fit. Please advise.
