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Nest Thermostat, no display

Community Member

Community Specialist
Community Specialist

Hello Metzger,


Thanks for visiting the Community.


Just to make sure we’re on the same page, is the Nest thermostat’s display not turning on? If yes, I have a few questions: what country are you located in? What model of Nest thermostat do you have? Is this a new installation? What kind of HVAC system do you have? Did you notice any error codes on the display? Also, are there any recent power outages or electrical work done in the house?


Please try the steps below:


  1. Remove the thermostat display from its base and check if any connector pins are bent.
  2. Check if the thermostat wires are secured in their terminals and all the buttons are down.
  3. Connect the thermostat display to a different micro-USB adapter and a USB charger.
  4. Leave the display plugged in for 1 hour, and then check if any light appears on the display.
  5. If the display turns on, connect the display to the base and check for any errors.
  6. If the display doesn’t turn on after charging for an hour, the battery isn’t taking a charge.

Here’s a guide on how to troubleshoot when your thermostat won’t turn on.


Let me know how it goes.




Community Member

First I Want to understand wiring connections. Have White to W and Red to R.Buttons pushed down. Not sure I under stand if used buttons should also be down. Thanks

Community Member

Typos. Have white to W and Red to red,  Those buttons pushed down. Do not understand if unused buttons should also be down. Thanks

Community Specialist
Community Specialist

Hi folks,


@Metzger, chiming in — what type of Nest Thermostat do you have? Also, you just have to make sure the buttons are pushed down for the terminals that have wire connected to them, which are the terminals of W and R, and then proceed to follow the remaining steps given by Lance above if needed.


I appreciate your help, Lance.