Hi sweating, thanks for posting a review. We are sorry to hear that you are experiencing power errors on your Nest Learning Thermostat.
Power errors usually occur if the HVAC system is not delivering enough power to the thermostat. Others could possibly be a wiring issue or a thermostat base issue. You can do the following to inspect your thermostat wires:
- Make sure to turn the powers off.
- Remove the C wire (if have) and inspect if the exposed part of the wire is ⅓ to ½ inch long, clean and straight.
- Cut and re-strip any crooked or corroded wire ends.
- Re-insert the wire. Make sure that the wire connector’s button stays down. If not, the wire isn’t fully inserted, and the thermostat won’t detect it.
We’d like to help you the best way possible, if we could learn more about what happened. Please reach out to our support team so we can work with you and isolate the recurring issue. You can reach out to our support team and improve your experience here: https://support.google.com/googlenest/gethelp