I have no experience in connecting thermostats. What to change all of mine thermostats connected with RS/RSB, SC, FL, FM, FH, L, VO1, C, R wires to the nest. Could you help with connection diagram?
Thanks for reaching out in the Google Nest Community forum. I'd like to take a closer look at it. To confirm, in what country are you located? Could you please take a photo of the wires connected to your system's control board? Ensure that the labels of the wires are visible. Sharing the photo of the wires connected to your thermostat is a plus. It will help us to further check the compatibility of your system to the Nest Thermostats.
To post a photo, click this link then scroll down to your response and hit reply. Check for the camera icon or click the three horizontal dots to expand the toolbar.
