Thanks, Renata! I don't have (and have never had) any lights at all, green, red or yellow. I'll try your hard reset procedure and see if it gets me the blinking yellow. I gather that I should do this with the radio module out of the unit.
[quote="Renata5"]Press the tiny Reset button under the top cover of your thermostat. If the blinking light is green, your thermostat is functioning correctly with your home network. If the blinking light is yellow, you may have to reconnect your thermostat to your router which is also called provisioning. A yellow blinking light means that the thermostat is broadcasting to your router.
[b]To re-provision: [/b]If you are using a Windows wi-fi enabled computer, download and install the program from [i]Setyourthermostat.com[/i] to your desktop. Connect to your thermostat and open the program. The program will lead you through provisioning and registration.
[b]If you do not see a yellow blinking light,[/b] press the Menu button, then press and hold your finger against the blank space in the middle of the screen till the screen changes, press the Up Arrow icon once (you’ll see a countdown). Press the Down Arrow icon once. Press the House twice to return to the main screen. The yellow light should be blinking now.[/quote]