Hello. We have two Nest Learning Thermostats. The one downstairs is set to drop to 67F at night, but keeps dropping to much lower temperatures. Most mornings start at 64F, but I just woke to find it at 63F. We rebuilt the schedule, hoping it would take with fresh entry. I've turned off Home/Away Assist and Auto-Schedule. I've restarted the system.
Other thoughts are appreciated. I wonder if the unit is failing, which is odd since it's the newer of our pair by several years.
Thanks
