Support Center

Yellow light not blinking when trying to provision

Last Updated: Oct 25, 2014 02:55PM UTC
After the thermostat is wired to your HVAC and powered back up with the Wi-Fi module in the thermostat the yellow light should start to blink.

If it does not blink check to see that you have a Wi-Fi tower on the screen with radio waves coming off of one side. 
  • If not please make sure the module is seated good in the slot.
  • Next reset the thermostat by pressing the reset button.

If you still do not have a blinking yellow light and you have any other thermostat other then a CT80 or CT80b please check the following;

Make sure you have a working C wire attached to the thermostat
  • If you have a C wire then remove the batteries for 5 minutes and see if the thermostat stays powered up
  • If not then your C wire is not working correctly.

You will need to correct the C wire issue to get the yellow light to blink

If the C wire is working correctly and you still do not have a yellow light - try the following
  • Preform a reset to factory function for both the thermostat and the Wi-Fi module
  • Then press the reset button

If still having issues remove and reinstall the Wi-Fi module
  • Then press reset
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