I have a nest hello installed on my side door and it works great. I’m trying to install a new one on my front door and when I’m disconnecting the old chime and putting it in the new nest chime the transformer wire is already in the existing nest. How do I install the second nest if the transformer wire is already in use?
This thread in this forum has a wiring diagram for connecting 2 Nest Hellos with one chime. It worked for us.
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