My nest thermostat doesn’t seem to be charging. I have the technical info. What’s next?

[rgaila]

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Original Poster: Blake Hartgraves 

I’ve charged the thermostat enough to take a picture of the technical info> power screen: 

Battery: 3.447 V 

Voc: 38.73 V

Vin: 7.13 V

Lin: 20 mA(a) 

According to the help guides it looks like my thermostat may not be getting enough power to charge sufficiently. This happened suddenly this evening and it hasn’t had this problem ever before. 

What do I do next? How can I fix this quickly?

[rgaila]

Hi Blake,

We're sorry to hear about your charging issues! I can understand the frustration behind the inconvenience. I'm happy to look into this issue for you.

Can you clarify a few details for me?
- What type of Nest thermostat do you have?
- When did the issue first occur?
- If the thermostat was recently installed, what is the make and model of your heating, ventilation, and air conditioning (HVAC) equipment?
- Are the power breakers on, and do you receive power to your home?
- Is the thermostat's display seated properly?
- Are all the wires of your thermostat seated firmly in its terminals (with no loose or exposed wires)?
- Does the thermostat charge with a USB cable?
- Do you have a C-wire or Power Connector?

I look forward to your reply and hope we can resolve this together.

-From Garrett DS, Community Specialist.

[anengineer]

Same-ish problem,  

Since an update on November 2nd my less than one year old gen 3 Nest Learning Thermostat has now stopped working three times now due to a battery /charging issue.  The first two times it actually charged on my desk using its USB port. 

When connected to its base and I check its "Power" readouts though its settings menu it shows:

Battery - 3.852 V

Vin - 32.45 V

Vout - 32.45 V

lin - 200 mA(c)

Are these expected readouts?

It will no longer charge at all. A green LED blinks constantly and the screen displays "Please attach the display to its base". (Which I've done several times but it won't charge its battery.)

Prior to Nov 2nd it worked flawlessly.

(I do have a 'C' wire)

[Jake]

Hey anengineer,

Sorry for the late reply. I wanted to follow up and ensure you are good to go. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further. 

Best regards,
Jake

[anengineer]

Thanks for the response.  Google has agreed to replace my thermostat with a new one.  I expect it in a day or two.

[Jake]

Hey anengineer,

Glad to hear you were able to get the issue resolved, and your new device is on the way. With that being the case, I am going to lock the thread at this time. If you run into any questions, please feel free to create a new post. 

Best regards,

Jake