https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-Thermostat-e298/m-p/668932#M131576 <P>Try these steps:</P> <P><STRONG><A href="https://support.google.com/googlenest/answer/10191637?hl=en&amp;sjid=11262546090193632703-EU" target="_blank">Troubleshoot a "No power" alert on a Nest thermostat (E298, E448 or M20 help code) - Google Nest Help</A></STRONG></P> Sat, 11 Jan 2025 15:31:11 GMT David_K 2025-01-11T15:31:11Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-Thermostat-e298/m-p/668692#M131575 <P>Both of my Google Nest Thermostats simultaneously got the e298 error saying no power. The wiring is fine. The power supply is fine. Not sure why this is happening.</P> Fri, 10 Jan 2025 07:11:46 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-Thermostat-e298/m-p/668692#M131575 goljuarez14 2025-01-10T07:11:46Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-Thermostat-e298/m-p/668932#M131576 <P>Try these steps:</P> <P><STRONG><A href="https://support.google.com/googlenest/answer/10191637?hl=en&amp;sjid=11262546090193632703-EU" target="_blank">Troubleshoot a "No power" alert on a Nest thermostat (E298, E448 or M20 help code) - Google Nest Help</A></STRONG></P> Sat, 11 Jan 2025 15:31:11 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Nest-Thermostat-e298/m-p/668932#M131576 David_K 2025-01-11T15:31:11Z