He posted the information a while ago. Here is his
post.https://www.googlenestcommunity.com/t5/Cameras-and-Doorbells/Nest-Hello-Doorbell-cuts-out-when-button-is-pressed/m-p/62975#M12084
Having the exact same issue in Arizona right now. Push the button,
doorbell powers off and powers back on after 20-30 seconds. Got my
multimeter and tested the wires to the back of the doorbell, at the
chime, and at the transformer. Roughly 18-19 vol...