How to Find a Doorbell Breaker
How to Install Energizer Smart Video Doorbell Without Existing Doorbell 
Can't find doorbell transformer!
Should my doorbell transformer be hot?
So take a good long long near your furnace for your doorbell transformer.
If that is not the issue, you can try restarting or resetting the device.
Keep the adapter unplugged and start preparing the wiring for the rest of the setup.