topic Nest Power Connector in Nest Thermostats

Nest Power Connector

Bruiser — Mon, 29 May 2023 20:28:33 GMT

As per a previous post of mine, my 3rd Gen thermostat keeping loosing charge and I have no C wire.

I installed a nest power connector and all seems to be fine as far as HVAC is still working but the Nest is still running out of charge.

There is nothing in the app saying "you need a C wire" and as it's a 3rd gen there is no option for power check in the app.

In the device, under Equipment, there is no option for Power Connector or power check.

I did a multi meter check before and after and nothing seemed to change. I've also double checked the wiring...

Any help or advice?

Re: Nest Power Connector

Markjosephp — Tue, 06 Jun 2023 20:22:14 GMT

Hello Bruiser,

Thank you for taking the time to let us know about your inquiry. I'd be happy to take a look at this for you.

Please make sure that your thermostat's software is up-to-date. If so, gather the power readings in the Technical Info settings. Also, please share with us a photo of how you installed your Nest power connector. This is to check on how it was labeled.

Regards,
Mark

Re: Nest Power Connector

Bruiser — Wed, 07 Jun 2023 19:11:33 GMT

Thanks Mark!

Software is up to date (6.2-27) and voltage info is... (last USB charge about 2 days ago)

Battery: 3.787V

Voc 36.50V

Vin 33.78V

Iin 40 mA (i)

I cannot find a way to attach pictures...

It's a heating and cooling system.

Re: Nest Power Connector

Markjosephp — Wed, 07 Jun 2023 19:32:02 GMT

Hey there,

Thanks for the details. To upload a photo, try replying back here and clicking the camera icon to attach photos. Make sure to sign in with the same email associated with your Community profile.

I'll look forward to your response.

Regards,
Mark

Re: Nest Power Connector

Bruiser — Wed, 07 Jun 2023 21:14:53 GMT

Here you go!

Re: Nest Power Connector

Bruiser — Sat, 10 Jun 2023 15:16:07 GMT

Update - had the wiring inspected by HVAC engineer during routine servicing and all is good.

So I will return the Nest Power Connector as defective.

Re: Nest Power Connector

Bruiser — Mon, 12 Jun 2023 15:23:44 GMT

Latest power readings:

Battery 3.831V

Voc 37.22V

Vin 35.39V

Iin 40mA

Does this mean that it's getting power?

Re: Nest Power Connector

Markjosephp — Mon, 19 Jun 2023 19:32:31 GMT

Hi Bruiser,

I'm sorry to hear that the Nest Temperature Sensor didn't work. I see normal power readings your thermostat is getting from your system. How's it going so far? Are you experiencing any power issues?

Regards,
Mark

Re: Nest Power Connector

Markjosephp — Thu, 22 Jun 2023 21:16:44 GMT

Hey there,

I don't want to be a nudge, but I'd like to check if you were able to get your thermostat working. Feel free to reach back if you still need help.

Regards,

Mark

Re: Nest Power Connector

Markjosephp — Fri, 23 Jun 2023 21:40:41 GMT

Hello there Bruiser,

It has been a few days since your last reply, and we're going to lock the thread within 24 hours. If you have any questions, please feel free to create a new post.

Thanks,

Mark