Nest E fhermostat won't power up

[LEidens]

Thermostat won't power up. Charged with usb port and lite turns green. Message says attach to base, but when I do, red lite starts blinking and eventually goes off but thermostat never turns on. System has 24 vac and old thermo works fine. Help?

[CoolingWizard]

When the Nest E Learning Thermostat is chewing the little green led will slowly flash. It takes about 4-hours to get an 80% charge.  How long did you charge the thermostat for? Does your HVAC system thermostat have a C wire?

AC Cooling Wizard

[LEidens]

charged for about 1 hr. Does not have c wire

[Jake]

Hey LEidens,

I wanted to check in and see if you are still in need of any help. Please let me know, as I would be happy to assist, and answer any questions you may have.

Best regards,
Jake

[Jake]

Hey there,

I wanted to check in with you, and let you know that I will be locking the thread in 24 hours.

Best regards,

Jake

[CoolingWizard]

You might want to try charging it for four or more hours. I normally tell Customer to charge it for 24 hours.

[zoeuvre]

Hi LEidens, 

Thanks for reaching out to us, and I’m sorry to hear about the situation. How's it going with your Nest Thermostat? Were you able to read the information that CoolingWizard has shared? Also, a few questions: For how long does your Nest Thermostat E lasts after you charged it, and can you help me with your Nest Thermostat E's power reading?  

1. To open the Quick View menu, press the thermostat’s ring.
2. Choose Settings.
3. Turn the ring to highlight Technical Info then press the ring to select it.
4. Select Power. 
   • VOC
   • VIN 
   • IIN

I'll look forward to your response.

I appreciate your help, @CoolingWizard. 

Best,

Zoe