No power to thermostat

[dgregwer]

My old thermostat didn’t have a C slot. Now my Nest says No Power to C. 

[dgregwer]

How do I upload photos to this forum?

[kronosport]

I replaced my 2nd Gen with a 4th Gen Nest Learning Thermostat and get a No Power warning every few days. Nest won't give me a refund. 

[jenniffert]

Hi @dgregwer,

Thanks for posting in the community! I understand your Nest Thermostat is indicating "No Power to C," even though your previous thermostat didn't have a C-wire connection. No worries, I can definitely help you with this.

To answer your question about sharing a picture, you can upload images by clicking the camera icon before sending your reply or by sharing a public link via Google Drive.

To better investigate this situation, I’d like to ask for a few details:

• What is the specific model and generation of your Nest Thermostat? Here’s a helpful article on how to identify your thermostat model.
• What is the make and model of your HVAC system?
• Are you getting any error codes besides the "No Power to C" message?
• Could you send photos of your current, previous, and HVAC control board wiring?
• Have you tried any troubleshooting steps so far?

@kronosport, I know how inconvenient these persistent power issues with your Nest Learning Thermostat (4th gen) are, and I’d like to look into this further to see what options are available. Could you please provide me with your case number? This will allow me to review the details of the situation.

Please feel free to share any additional details you think might be relevant.

Best regards,

Jenniffer

[kronosport]

Jennifer - These power issues are more than inconvenient; they're expensive.  I paid my HVAC company $400 to install the new NEST thermostat and an additional $75 for a follow-up service visit.  They're coming again tomorrow because I keep losing heath to the part of the house that's heated by this thermostat. I never had any issues with the 2nd gen thermostat.  My case number is 3-6011000040523. 

If you search my account, you'll several service calls that I made to google tech assistance.

[jenniffert]

Hi kronosport,

Thank you for your response and for sharing those details. I apologize for the trouble you've had since the installation of the new Nest Learning Thermostat (4th gen). It’s understandable that you feel this way, given the cost of the service visits and the fact that your previous thermostat worked without issue. I also appreciate you taking the time to contact our support team.

After reviewing the case, I see that a replacement has already been processed. If you have any questions regarding the process or need specialized assistance during the installation, I recommend replying to your specialist's email. They’re dedicated to your case and have all the tools to help with it.

Keep me posted.

Best regards,

Jenniffer

[dgregwer]

I don’t see the camera icon

[jenniffert]

Hi dgregwer,

Thanks for your reply! The camera icon is usually hidden for new members until their account is verified. Please check your inbox for a confirmation email. Once you’ve confirmed your account, your upload permissions will be activated automatically.

Alternatively, you can share pictures using Google Drive or Google Photos. Note that the picture will appear as a clickable link rather than a visible image. Here are the steps:

• Google Photos: Open the image, click Share, and select Create link. Paste that link into the reply box.
• Google Drive: Right-click the file, select Get link, set access to "Anyone with the link," and copy the link. Paste it into the reply box.

Keep me posted.

Best regards,

Jenniffer