My Nest E will not stay at the temperature I set it to. I have set it to 70 or 73 degrees since it's been extremely cold lately. It keeps dropping to 65 degrees and my house gets freezing cold. I'll turn it back up to 70 degrees it will tell me will be at that temp in an hour and 30 minutes, shows the heat kicks on but it doesn't and then drops back down to 65 degrees. Any suggestions?
