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Wiring might not be compatible

Ceanothus
Community Member

My existing thermostat had red to D, white to C, yellow to B and green to A. The nest has totally different letters for each connection but some online tutorials said to connect red to R, white to W, green to G and red to R, so that’s what I did. It comes up saying to complete setup in app but I can’t get it to set up. Are these wiring connections correct?

1 ACCEPTED SOLUTION

Thanks but I gave up and returned the thermostat.

View solution in original post

5 REPLIES 5

MelbaDT
Community Specialist
Community Specialist

Hey Ceanothus, 

 

Thanks for reaching out. 

 

Based on the description of your current thermostat, you have a proprietary system. This isn't compatible with Google Nest thermostats. However, some proprietary systems can be rewired by a pro installer to be compatible.

 

You may check this out for more information: https://goo.gle/3Q3jQs8

 

Best, 

Melba

MelbaDT
Community Specialist
Community Specialist

Hey there, 

 

How's it going? Still have some questions here? 

 

Best, 

Melba

Thanks but I gave up and returned the thermostat.

MelbaDT
Community Specialist
Community Specialist

Hey Ceanothus, 

 

I understand — should you decide to give our Nest thermostats again a try in the future, you know where to find us. 

 

Cheers, 

Melba

MelbaDT
Community Specialist
Community Specialist

Hi, 

 

We haven't heard from you in a while so we'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.

 

Best, 

Melba