Nest Learning Thermostat low battery & power

[halconespiritu]

Yesterday my electrician attempted to install and set up the new Nest Learning Thermostat only to have a low battery warning. I let it heat the house for 2 hours then tried to charge it via USB. There is a blinking green light on at all times. I do not know if the USB charge even worked, or how to check.

For now we reinstalled the old thermostat and are awaiting the nest power adapter before attempting to do this again.

Are the batteries in need of recharging so quickly? Do they really need a c wire for power? How do I check my battery level?

[Houptee]

How many wires are connected to the Nest now? Take a pic and post it.

And are there any spare wires you can use for C wire in the thermostat cable?

You really do need a C wire for the Nest to operate properly.

The electrician should have pulled a new cable if there are no spare wires to use for C

What kind of system do you have? Heat and AC or just heat?

[Jhonleanmel]

Hey folks,

We appreciate your help here, @Houptee.
@halconespiritu, I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Thanks,
Mel

[Jhonleanmel]

Hey there,

Checking back in should you still have some questions here. Let us know by replying to this thread. 

Best, 
Mel

[Jhonleanmel]

Hi everyone,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

Thanks,
Mel

[halconespiritu]

I am waiting for my electrician to come back for a 2nd attempt.  I purchased the power connector as a back up option in case the battery did not fully charge or does not receive power.  Once the electrician returns I will follow up here.  I was able to use it for 2 hours & loved it!  Hopefully it works on the 2nd attempt 

[Jhonleanmel]

Hi halconespiritu,

Thanks for letting us know. Take your time, I'll be waiting for your update.

Best,
Mel

[EdwardT]

Hey halconespiritu,

I wanted to follow up and see if you are still in need of any help. 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.

Thanks,

Edward

[EdwardT]

Hi halconespiritu,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

Thanks,

Edward

[halconespiritu]

My electrician is coming tomorrow for another attempt at installing.  If the nest does not have power, or does not receive power once hooked up, I will return the device.  This malfunction occurred during freezing temperatures and was extremely problematic

[Houptee]

A HVAC technician would be better than an electrician. The HVAC tech will know how and where to connect the C wire inside the furnace and also test the system is working correctly.

Electricians are for house wiring problems and normally do not have experience with HVAC control wiring.

[EdwardT]

Hi folks,

@Houptee, thanks for the help!

@halconespiritu, how's it going with your Nest Thermostat? Were you able to get it installed?

Thanks,

Edward

[halconespiritu]

Thank you for your advice & help everyone.  We successfully installed the thermostat on Friday & a new power terminal on the furnace so the system works now.  The nest is now continuously powered 

[Markjosephp]

Hello halconespiritu,

Awesome! We are relieved that your problem has been resolved. It appears that we can mark this one as finished; therefore, barring any additional assistance, I will lock the thread in 24 hours.

Regards,

Mark