Nest 2nd Gen Doorbell Puck Melted after Transformer Replacement

[KenzoH72]

Hi Team - former Googler here.

I have had a second gen nest doorbell for about a year and recently my transformer stopped working. I replaced the transformer properly with the exact same rated transformer (16V, 10VA) and turned the system back on.

I was out at the doorbell and it was blinking either an orange or a yellow light, the color looked like it was somewhere in the middle. I came back inside and I smelled some burning, I opened where my doorbell chime was and the puck was burning up and smoking. I went outside and cut the breaker immediately. I took off the puck and its got a couple of big holes burned in it.

It looks like there have been previous documented issues and lots of other comments on this doorbell.
Note I am not using the mechanical chime and have the chime ring via my Google Home devices.

Any suggestions on how to proceed?

Related Google Thread

Reddit Thread

[virnab]

Hi KenzoH72,

Thank you for providing such a clear breakdown of the incident with your Google Nest Doorbell (wired, 2nd gen) Chime Connector. I can see that after replacing your previous doorbell transformer with an identical 16V, 10VA model, the Nest Doorbell puck began smoking and burning. I understand your concern, and I'm ready to assist.

To help you with this, the team would like to learn more about this behavior. When you get a chance, please fill out this form and let us know when you’re finished. We’ll have someone reach out to you via email from there.

Please keep me posted.

Best regards,

Virna

[KenzoH72]

Thank you I filled out the form and are going through that process.

[virnab]

Hi KenzoH72,

We've received your form and appreciate the details you provided. Please keep an eye on your email, as someone from my team will contact you shortly to help. If you have any questions or concerns in the future, feel free to reply to this post.

Regards, 

Virna