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Mechanical chime not working with Nest wired, 2nd gen - is 16V 10VA the problem?

Community Member

Help! I have had this device for less than 2 weeks and am so frustrated that the only way I know if someone is at my door, is if I have my phone beside me for an alert. Considering returning it, the old fashioned doorbell was far superior.

Hours of troubleshooting here and finally consulted this forum. I see others have solved this by increasing amps from 10VA to 30VA. 

1. Why does the device indicate that 10VA is sufficient, if it is not?

2. How does one increase amps? 





You would have to replace your doorbell transformer to increase your power.

I can't speak to why Google Nest specifies 10 to 40 VA under power requirements needed for doorbell transformers ( But when we got our second Google Nest Hello Doorbell a few years ago, we had to upgrade from a 16V 10 VA transformer to a 16V 30 VA transformer.

Community Specialist
Community Specialist

Hi folks,


Checking in — I hope you've got the answer you're looking for. Let me know if you have more questions in mind. 


I appreciate your help, MplsCustomer.




Community Specialist
Community Specialist

Hi everyone,

@Marathon422262, we wanted to follow up and see if you are still in need of any help. Please let us know if you are still having any concerns or questions from here, as we would be happy to take a closer look and assist you further.

I appreciate the help, MplsCustomer and JT.


Amazon Alexa speaker has been the work around, and I now have a doorbell signal in my home….just not the way the device was intended to work!

Hi everyone,


@Marathon422262, the Nest Doorbell (wired, 2nd gen) has higher power requirements than most doorbells. For some installations, you'll need to replace the transformer for your doorbell. You need a transformer that is rated for 16-24 V AC, 10-40 VA to provide enough power to your Nest Doorbell. If you've already installed your doorbell and you see a blinking yellow light on the front, your doorbell isn't receiving enough power. Hit this link for more information.





Many customers in this forum have reported that a 10VA transformer is insufficient for the 2nd Gen Google Nest Doorbell and have upgraded to a 30VA transformer. We had to do the same when we got our 2nd Nest Hello doorbell.  Perhaps Google Nest should re-evaluate its stated requirements.

Community Specialist
Community Specialist

Hey everyone,

@MplsCustomer, I appreciate your effort and thanks for sharing your input in the Community — It's a big help!. Stay tune for updates.

Let me know if you have more questions.