Do I Need to Rewire My Nest Thermostat?

[GeoffG]

I have a first generation Nest learning thermostat and recently purchased a third gen model. Does anyone know if I can just swap the head units or do I need to rewire the whole thing again?

[MelbaDT]

Hey GeoffG, 

Thanks for reaching out.

You need to rewire your Nest Learning Thermostat 3rd generation as it has a different base compared to the 1st one.

Hope this answers your question. 

Best, 

Melba

[Ryan_G]

Hey folks,

I just wanted to follow up and see if you're still in need of help. Please let us know as we would be happy to answer any questions you may have. 

Thanks for the help, Melba.

Best regards,

Ryan

[Ryan_G]

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and make sure that you’ve seen our response.

Please let us know if you have any other questions or concerns as I will be locking this thread in 24 hours.

Have a great day.

Best regards,

Ryan