I, went through the process of installing the Ring Video Doorbell Pro. The unit is Certified Refurbished. My home is built in 2015. I confirmed that the chime (BK125LWH-1) is compatible via the list on the website. I measured the NuTone c905 transformer voltate was 22V.
I have installed the ring power kit and camera/bell module. The blue light on the top portion is flashing but does not seem to be progressing. The included instructions state up to 30mins; however, it has been about 60min and nor progress. How long does this take. Phone support said 24hours.