Nest Doorbell wired 2nd gen chime connector 2 chimes

[David1B988]

Hi,

I saw an article asking this question about a year ago that has been resolved but it didn't really give any answers. They posted some wiring diagrams for other situations but not for 1 doorbell with 2 chimes. So my question is for 1 doorbell with 2 chimes do I just hook the chime connector to either of the chimes and it just works for both or do I need a second chime connector for the second chime? I haven't tested yet because I don't want to hook up the doorbell and have it not working properly while I figure this out so I would like to know what to expect first. Thanks in advance to anyone who can help.

[MplsCustomer]

@David1B988 

It depends on how your two chimes are wired.

This post is for the older Google Nest Hello Doorbell, but you should be able to adapt it for the 2nd gen's "chime puck".

Note that this diagram assumes that the second chime (on the left) is wired in series from the first chime (on the right). Not every two-chime setup is wired this way.

https://www.googlenestcommunity.com/t5/Cameras-and-Doorbells/Need-wiring-diagram-from-wired-nest-doo...

[David1B988]

@MplsCustomer  Ok I will check and see how everything seems to be wired and I might have to study the diagram a bit and see how to make sense of it with the old 4-wire puck to my 2-wire puck. Why do they make this so hard? LOL I will report back. Thank you

[David1B988]

Ok so here is what I got. The two chimes are identical. The transformer has one wire on the left going to the doorbell and the other two wires on the right are going to the two chimes. And then I can only assume the other wire from the doorbell splits and goes to both chimes. So how do I properly place this chime puck?

[MplsCustomer]

@David1B988 

I'm not an electrician, but my guess would be that the one wire goes from the transformer to your doorbell, and the two wires go one each to your two chimes. Along with your comment that both chimes are wired the same would seem to indicate that your two chimes are wired in parallel. I don't know how to place the chime in this case. The chime's purpose is to provide continuous power for your doorbell and its camera without tripping your chime. Perhaps it would work if you place the chime puck on EITHER chime, but I don't know whether your other chime will work in that case. It might be you'd need to rewire your chimes to be in series rather than in parallel.

It's too bad Google Nest does not provide a wiring diagram for this particular case. (They only have 2-chime examples for when the chimes are wired in series.) Maybe a Google Nest Support Specialist or another customer will read this post and provide information.

Another issue is that your transformer is 16V 10VA. While this is within Google Nest's minimum requirements (https://support.google.com/googlenest/answer/12153643), many customers in this forum, including us, have had to upgrade to a 16V 30VA transformer to get either the Nest Hello Doorbell or the 2nd Gen Google Nest Doorbell to work correctly.

[David1B988]

@MplsCustomer Thanks for all the info. I was really hoping this project would not be so complicated. Didnt think a doorbell would be LOL. I might have to just try it and see what happens. And I was hoping not to have to get an electrician but It seems like I might. Maybe someone else will respond here with some other info. I wish Google/Nest had the wire diagram for this use case. If this stays open for a bit I will update it with my findings so It will be here for the next person having my issue. Thanks again.

[Lance_L]

Hi David1B988,

Thank you for posting in our community. I apologize for any inconvenience this may have caused.

While we don’t have any information available for wiring a Nest Doorbell (wired, 2nd gen) to two chimes, you may contact a Nest Pro to help you install the device.

If you are in the US, you can contact our installation partner, OnTech, to help you set up the Nest doorbell.

For all other countries, you can book an appointment with a Nest Pro. More information here.

I appreciate the help, MplsCustomer.

Best,

Lance

[David1B988]

Thanks. I was really hoping to do this as a DIY project as it's really not complicated minus the fact that Google/Nest doesn't have the proper wiring diagram for my use case as well as I'm sure many others. I'm going to keep searching for "Free" answers. And hopefully one day Google/Nest will put up the diagrams for this. Thanks again.

[Lance_L]

Hello David1B988,

We hear you. Our team is committed to providing the best possible experience for our users. We appreciate your feedback and will take it into consideration. If you have any other questions or concerns, please let me know. I will lock this thread in 24 hours if I do not hear back from you. You are welcome to start a new thread, and we will be happy to help.

Regards,

Lance