I recently finished my basement and ran a wire in the wall (where I wanted my new door bell to my current doorbell transformer. I've been unsuccessful in getting both my upstairs and downstairs doorbells to work.
Currently, I can get both doorbells to DING, but not dong.
I followed this YouTube video and have mine wired up the same as the diagram in the video.
Additionally, I upgraded my transformer from a 16va to a 24v 20va I bought from Lowes
I am wondering if I am still under powered and that is why I am not getting a ding a a dong from both doorbells? If so, what V and/or VA transformer is recommended for two Chime style (with the plungers and actual bells, not just a speaker or buzzer). I would have thought that the upgraded transformer would have been enough for the two to run.
Additionally, I get really inconsistent rings when I push the doorbell from the doorbell. When it's pushed sometimes one rings, other times both (ding, but won't dong), etc.