The situation is kind of confusing, because @matosw has posted in this topic and another one, where I’ve attempted to assist, and the last image shared over there appears to show the Chime Controller wired correctly in the standard configuration if the transformer, chime, and doorbell are wired correctly and if the wiring itself is as expected (i.e., 2-conductor wire from transformer to chime box and 2-conductor wire from chime box to doorbell button installation site).
I wonder if @matosw’s questions would be better served broken out into a new topic, because this one is specifically titled “without chime”, but that type of installation doesn’t seem to be @matosw’s goal. I’d like to offer more help, and I’m having some difficulty with that when follow-up questions remain unanswered across two separate topics and I don’t know how the doorbell and chime are behaving in the current setup or what the app settings are.
If I was in this situation, at this point I’d be inclined to use a multimeter to…
- Confirm the voltage at the transformer.
- Confirm the correct 2-conductor pairs at the chime (ensure that I know which pair are from the transformer and which are from the doorbell button’s location and that the wiring is all intact and routed as expected).
- Confirm the voltage at the doorbell button’s location with the chime wired in its original configuration (i.e., white wires connected together with a nut and correct red wires connected to the FRONT and TRANS terminals).
With the chime wired in its original configuration (Chime Controller disconnected), I’d also be inclined to connect the original doorbell button and test that (or just short across the two wires at the doorbell button’s location) just to make sure the chime itself is working correctly. If it’s not, then I would think that the problem wasn’t with the Duo Cam Doorbell or Chime Controller, and I’d want to solve whatever else was the issue before moving on. Once I knew all that was functioning as expected, I’d go through the Chime Controller and Duo Cam Doorbell installation steps to make sure I wasn’t missing something else.
That’s the approach I think I’d take, anyway.
@fmills1d, the answers to your questions are in the other topic linked above. Unless something else has changed in the setup, @matosw has a chime for a single doorbell installation (FRONT and TRANS terminals only; no REAR) and is using a transformer rated for 16 V AC, 10 VA. @matosw has also reported measuring 19 V with a multimeter. While that meets the minimum power output recommendation for Duo Cam Doorbell, I’m not quite ready to recommend a transformer upgrade yet, because I don’t think I know enough at this point about what the whole situation is, like I mentioned above. 