Nest e wiring advise please

[rgaila]

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Original Poster: David Turnnidge 

Hi, can anybody please advise which cable goes where on a nest e thermostat heat link. I have old colour cables black , red and earth. 

Hopefully an image is attached of my exiting wiring

Thanks for looking and helping

[rgaila]

Hey David,

Thanks so much for reaching out and providing us with a picture of your current wire set up. I would be more than happy to take a closer look and see if you are compatible. Reviewing the picture, I am not showing that your wires are labeled. Do you know what each wire would be labeled as? In this case, I would recommend reaching out to a Nest Pro. They would be able to provide you with more details on your system as well as install the thermostat if compatible. Please let me know if you have any other questions from here.

-From Jake K,  Community Specialist.