Nest Doorbell Wired Gen2 - Chime not Working

[Paulmcclellan]

I’m having issues with my Nest Doorbell (wired Gen 2) and the chime not working. I’ve checked all the wiring and based on what I’ve read it may be a transformer issue, but I want to confirm with this community. 
I’ve attached some pictures that show the transformer and the chime box. I did attach the puck to the front and trans, tried it with the cover off too to make sure no obstructions. On the settings I’ve selected mechanical. 
Questions:

• Have I wired everything correctly?
• Do I need to increase the size of the transformer (it’s a 16V 10VA)?
• Should I change the chime box to digital?

[Autogenerated]

I just installed my Nest Gen2 yesterday (did not have any smart doorbell previously) and having the same issue with what looks like the exact same transformer.... If I remove the puck everything works fine (including chime) but with puck installed mechanical chime will not ring.

There are other threads with users having same issues, some claim replacement puck, and few claim replacement transformer. I may install a 24V 20VA transformer this afternoon to rule out more power before seeking a new puck.

Have you tried without the puck?

[Paulmcclellan]

I have not tried without the puck. I read an article that it was not advised. Can you let me know how it goes with the new transformer?

I’ll also try without the puck to confirm we’re having the same issue. 

[Paulmcclellan]

I can confirm that with the puck removed the chime works. So that begs the questions:

• What is the purpose of the puck?
• Is it safe to run without the puck?
• Would the larger transformer solve the issue? 

[Autogenerated]

I took out the 16V 10VA transformer and replaced with a 16V 30VA Hampton Bay transformer from Home Depot ($20) and that seems to have solved the problem! The mechanical chime now works with puck installed and gives me the ability to enable/disable the chime in doorbell settings.

There seems to be some debate as to the exact purpose of the puck, but the best answer I've seen says it's there to allow the doorbell to receive constant power without doing any damage to the chime. Some people report a hum or random chime if using without the puck while others say they've had no issues... I personally was not comfortable without the puck so glad the new transformer worked. 

Hope this helps and good luck! 

[Brad]

Hi there, 

Sorry to hear you're experiencing this, as I can imagine it has been an inconvenience. I would love to look into this further for you. We definitely suggest using the Chime Puck that comes with your doorbell, but if it is not working with your current system, then you can always set up alerts to go to your smart speakers or displays instead. Please let me know if you still need help. 

Best regards, 
Brad

[aatienza]

Hey there,

I just wanted to follow up to see if you still need our help. Please let us know as we would be happy to answer any questions you may have. 
 

Thanks,

Archie

[Paulmcclellan]

I’m in the process of updating the transformer. I need a different junction box due to the different connection, but I’m getting to it this week. 
instead of messing around with the transformer and mechanical chime, are the not digital options that hook up inside the house - that aren’t Google Hubs? 

[Brad]

Hi there, 

Just checking in to see how the conversation is going. Please let us know if you have any further questions or concerns. We'll leave this thread open for a little longer for follow-up questions and concerns. 

Best regards, 

Brad

[Brad]

Hi there,

Just checking in on this thread and the activity on it. We'll leave this topic open for another 24 hours in case there are any follow-up questions or comments.

Best regards,
Brad