topic Re: Wiring a Nest Power Connector in Nest Thermostats

Wiring a Nest Power Connector

Kulwell1 — Wed, 11 Jan 2023 22:07:06 GMT

Hoping someone can give me some advice here. Ive connected the Nest thermostat and connects the two wires, its a heat only system. The error code Im getting is lack of power and I need to install a Power Connector. When I go to the handler, the thermostat wire is connected to the unit via two terminals, an R and a W. Nothing else. The Power Connector has three wires on it, the last one requiring a C terminal which doesn't exist on this unit. So on the Power Connector, there's no where to put the C wire. The thermostat is working but I assume it'll just drain its own batteries until its dead. So obviously, its not working properly and Im not sure what to do...

Nest Thermostat

Kulwell1 — Wed, 11 Jan 2023 21:49:10 GMT

Re: Wiring a Nest Power Connector

ExBexTexMex — Thu, 12 Jan 2023 17:36:15 GMT

Hi. If you download the Power Connector "Pro" Installation Guide from Google... https://storage.googleapis.com/support-kms-prod/k5rpNEXV1F0aVYhr8jN1L2GAxhcAPDXhk39r

And go to pages 10-11, it shows how to wire a heat only system that only has R and W at the handler. It shows that you will need to install a separate 24v external transformer to feed power to the C on the Power Connector.

The instructions that come with the Power Connector don't show this setup. You have to get the "Pro" instructions from the website.

Re: Wiring a Nest Power Connector

Jake — Tue, 17 Jan 2023 17:37:35 GMT

Hey there,

Thanks for the helpful reply ExBexTexMex.

I wanted to check in and see if you managed to see ExBexTexMex's post. Please let me know if you have any questions from here. I would be happy to assist, and make sure you are good to go.

Best regards,
Jake

Re: Wiring a Nest Power Connector

Jake — Fri, 20 Jan 2023 17:35:29 GMT

Hey there,

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

Re: Wiring a Nest Power Connector

Jake — Tue, 24 Jan 2023 19:03:52 GMT

Hey there,

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

Best regards,

Jake