Hi, @dmajsl,
Thank you so much for reaching out to the community. I’m happy to assist you with your thermostat compatibility.
Thank you so much for sharing the picture of your thermostat. It’s very helpful information.
Based on the picture of your thermostat, you have a conventional system; therefore, it is compatible with the Nest Learning thermostat 4th generation. I just need to confirm: is the green wire connected to the G terminal? If so, for sure it is compatible.
To be completely sure, I would really appreciate it if you shared a picture where all the terminals are visible.
Please keep me posted.
Best regards,
Ana
