Hi gq61nb,
Thank you for reaching out to the community! I’m sorry to hear that your Nest thermostat was offline when you were out of town and now is not receiving power. I'd be happy to help!
To better investigate the inconvenience, I’d like to ask the following:
- What is the model of your Nest thermostat? Here’s a helpful article about how to identify your thermostat model.
- Is there a wiring report or error message on your thermostat, Nest app, and/or Google Home app? If so, what exactly does the error message say?
- When did you install the thermostat?
- Do you see any blinking lights at the top of the display?
- Are the power breakers on, and is your home receiving power?
In the meantime, I’d suggest the following:
- Check that the wires are fully inserted into the terminal and the connector buttons are securely pushed down. This ensures proper wire connections. For reference, you can check out this article: Troubleshoot strange heating or cooling behavior. Important: Before touching any wires, turn off the power to your HVAC system at the breaker box.
Please feel free to share any additional details that might be helpful to assist you efficiently.
Best regards,
Jenniffer
