https://www.googlenestcommunity.com/t5/Home-Automation/Thermostat-Nest/m-p/741192#M57813 <P><a href="https://www.googlenestcommunity.com/t5/user/viewprofilepage/user-id/783464">@Heyhoseh</a>&nbsp;Try these steps:</P> <P><STRONG><A href="https://support.google.com/googlenest/answer/9235307?hl=en&amp;sjid=12543678079468714100-EU" target="_blank">Troubleshoot thermostat power issues during hot weather (E3, E4, E23, E24, E73, E74, or E195 help codes) - Google Nest Help</A></STRONG></P> Sat, 06 Sep 2025 09:45:40 GMT David_K 2025-09-06T09:45:40Z https://www.googlenestcommunity.com/t5/Home-Automation/Thermostat-Nest/m-p/741096#M57809 <P>Question my thermostat is showing a Spanner and screwdriver, what does that mean? I check my app and saying error E73: No power to Rc wire</P><P>&nbsp;</P><P>what do I have to do?</P> Sat, 06 Sep 2025 01:14:57 GMT https://www.googlenestcommunity.com/t5/Home-Automation/Thermostat-Nest/m-p/741096#M57809 Heyhoseh 2025-09-06T01:14:57Z https://www.googlenestcommunity.com/t5/Home-Automation/Thermostat-Nest/m-p/741192#M57813 <P><a href="https://www.googlenestcommunity.com/t5/user/viewprofilepage/user-id/783464">@Heyhoseh</a>&nbsp;Try these steps:</P> <P><STRONG><A href="https://support.google.com/googlenest/answer/9235307?hl=en&amp;sjid=12543678079468714100-EU" target="_blank">Troubleshoot thermostat power issues during hot weather (E3, E4, E23, E24, E73, E74, or E195 help codes) - Google Nest Help</A></STRONG></P> Sat, 06 Sep 2025 09:45:40 GMT https://www.googlenestcommunity.com/t5/Home-Automation/Thermostat-Nest/m-p/741192#M57813 David_K 2025-09-06T09:45:40Z