Looking to update our transformer so we can install the Nest Hello. I believe I found it but wanted to verify if this looks correct?enter image description here

  • Hello, and welcome to Home Improvement. What do you mean by "update our transformer"? And, you should probably take our tour so you'll know how best to participate here. Commented Dec 11, 2019 at 23:24

1 Answer 1


That is not a transformer. It is a simple junction box with 3 cables.

This is what a doorbell transformer looks like. Notice the brown cable on the right. That is the type of cable you should be looking for to locate your transformer.

enter image description here

  • That is great, I’ll keep looking. Thanks for the quick answer and helpful picture!
    – Matt Blair
    Commented Dec 11, 2019 at 21:28

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