Choose all settings at the very bottom. Your nest thermostat has detected a g 2 fan wire in the y 2 connector and an emergency heat wire in the connector.

Accuracy Of Nest Room Thermostat Humidity Indicator
How to fix nest thermostat. Scroll all the way to the right and select reset. Remove the base plate disconnect each of the labeled wires from the thermostat by pushing in the terminal tab and pulling out the wire. Give it a restart. 4 ways to fix it check nest services. The nest thermostat does not support multiple stages of heat and multiple fan speeds at the same time. First check that services are online with this tool.
Start by clicking on the nest thermostat unit to bring up the main menu. Scroll to settings and select it. Gently pull the thermostat wire cable out from the wall a few inches if possible to prevent the cable from slipping. Restarting your thermostat can resolve some issues like a slow or frozen display or help it get reconnected to the internet. Contact a local pro if you need more help. If there is an outage its on nests end.
The first thing to try probably not surprisingly is turning the thermostat off then turning it on. Heres how to restart the nest thermostat if it ever becomes unresponsive. G 2 wire detected. The nest thermostat is a piece of hardware with circuitry and an operating system just like any computer. If you need to clear out some or all of the learning about your home. That means its also susceptible to crashing freezing and other problems.
Remove the screws securing.