Blinking red light and will power up

[Andre09]

Nest thermostat has a blinking red light and will not power on. We left it for hours and it did not charge then boot up. We removed it from its base and charged it with a micro-usb charger for hours then returned it to its base with no change. 

Is there anything else that can be done? Please advise. 

[GabrielaG]

Hi @Andre09,

Thanks for reaching out to the Google Nest community. I'm sorry to hear that your Nest Thermostat has a blinking red light and is not powering on, but there's no need to worry; I'm happy to help you right now.

I'd like to ask you a few questions in order to gather more information about the concern and find the best way to fix the problem with the Nest Thermostat.

• What type of Nest Thermostat do you have?
• When did the issue start?
• When was the Nest Thermostat installed?
• What type of HVAC system do you have?
• Are all the wires of your thermostat seated firmly in its terminals (with no loose or exposed wires)?
• Can you please send me a picture of the Nest Thermostat wiring?

Any additional details you can provide will be helpful.

Best regards,

Gabriela

[awoodert]

We have a third generation Google nest learning thermostat

the issue began last weekend 

the thermostat was already installed when we moved into our home nearly four years ago

we have a split HVAC system

all of the wires are firmly seated in the system (I had a video call with a nest representative to go over this) however we do not have a ground wire

As mentioned above, we had a video call with a technician from Google Nest. The item is out of warranty. We attempted to charge the unit with a new micro USB cable but after many hours of the light blinking red it still will not take a charge and power up. Is there a way to have the unit repaired?

[GabrielaG]

Hi @awoodert,

Thank you for your reply. I appreciate the time you have taken to contact us and troubleshoot your Nest Learning Thermostat 3rd gen with our team. I'm happy to continue assisting you.

I would like to see more details about this situation. Could you please provide me with the case number that was created with our team?

Any additional details you can provide will be helpful.

Best regards,

Gabriela

[awoodert]

The case number is 2-1389000038640

[GabrielaG]

Hi @awoodert,

Thank you for your reply. I appreciate the case number. I see in the case that you just charged the Nest Thermostat for hours. I'm glad to continue helping you.

I need to verify some info to give you a better resolution.

• Is the thermostat's display appropriately seated?
• Are all the wires of your thermostat seated firmly in its terminals (with no loose or exposed wires)?
• Can you please send me a picture of the Nest Thermostat wiring?
• Do you see error codes on the app or Nest Thermostat screen?

Any additional details you can provide will be helpful.

Best regards,

Gabriela

[awoodert]

The thermostat is seated completely as it has been since we moved into the home. All of the wires present are seated completely. The unit will not charge on the base or with a micro usb cable. When we attach either, there is a blinking red light and a blank screen. 

 

[GabrielaG]

Hi @awoodert,

Thank you for your reply. I appreciate the time to respond to my questions and the picture you provided me. I'm sorry to hear that the issue was not resolved. 

Since we have done all the basic troubleshooting steps, the team would like to know more about this behavior. When you get a chance, please fill out this form. Remember to include the link to this post. Let me know when you’re finished. From there, we'll contact you via email. 

Let me know when you're finished. Your confirmation is crucial to ensuring that I can follow up on your case effectively.

Regards,

Gabriela