I have a sensi thermostat about 5-7 years old. I guess they just updated the wifi operating system and I can no longer control it with my phone. My phone android system is to old.
So no way to change the program. Lucky the program is okay heat on at. 5:30 am off around 7:00. and on a few hours around 6:00. No longer have remote control to turn the heat or ac on right before we get home.
Really not as good as a 30 year old clock thermostat would be.
I am not going to rush out and buy a new phone every few years to make it work. I could get a free phone upgrade from verizon. But free costs an extra $20 A MONTH!
BILL D