topic Re: Power test result in Nest Thermostats

Power test result

XC1 — Tue, 24 Jan 2023 02:30:14 GMT

I got an email from google:

We noticed that your Nest Thermostat isn’t receiving sufficient power, which will cause the thermostat’s batteries to drain rapidly. If this continues, your thermostat will work but may experience the following issues:

Reduced battery life, that may require replacements every few weeks
Disconnection from Wi-Fi
Disabled motion sensor
Unexpected activation of heating and cooling

This can be fixed by installing a Google Nest Power Connector or properly installing a common wire (also known as a C-wire).

Google Nest Power Connector
You can install a Google Nest Power Connector to ensure your thermostat gets enough continuous power to work properly. (Available for purchase on the Google Store only in the US & CA.) If available, you can have a trained pro fix your C-wire connection or install a Power Connector for you. Learn about Nest Pro installation services.

Common Wire (c-wire)
To see if you have a properly installed C-wire, open Settings on your thermostat display → Equipment → Wiring Info. If a C-wire is detected, it will be shown in blue. If it’s not detected, it’ll be greyed out. This could mean your C-wire isn’t fully connected to your thermostat or your heating/cooling equipment, or you don’t have a C-wire. To learn more about this issue and how to fully connect your C-wire, see this help center article.

For further questions, please contact our customer support team at 1 (855) 469-6378 or here. When speaking with support, please provide the thermostat’s 14-character serial number that can be found on the bottom of the device above the QR code.

- The Google Nest team"

At the time, nest shows an err message. Then i ran a power test, that err is gone. I do have the nest power connector installed the day before, Power test shows:

Vin: 26.537 V
lin: 385
PS: Y-385, YP-15

Can anyone shares how to read these output and whether I still have the power err? Thank you so much!

Best

Re: Power test result

Jenelyn_O — Tue, 31 Jan 2023 22:48:13 GMT

Hi XC1,

Thanks for checking this out and for sharing with us the power info of your Nest Thermostat. Running a power test would determine if the Nest Power Connector is connected. Also, It appears that your Nest Thermostat already received the power that it needs with the 385 voltage for IIN, which is a maximum voltage for the wires.

If you have other concerns or questions please let me know.

Best,

Jenelyn

Re: Power test result

EmersonB — Tue, 07 Feb 2023 22:07:53 GMT

Hi everyone,

@XC1 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.

I appreciate the help, Jenelyn.

Thanks,
Emerson

Re: Power test result

EmersonB — Wed, 08 Feb 2023 23:18:14 GMT

Hey XC1,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let us know.

Regards,
Emerson