If your ring video doorbell pro isn't receiving sufficient power, it may not function reliably or experience poor video or audio quality. This should assist you in removing any difficulties or settings that may be prompting you to encounter such a difficulty, and then it will be resolved. Pin On Amazing Gadgets If it doesn't ring my guess would be the transformer as a 16vac transformer unloaded would normally be closer to 20v rms. Ring chime not working after power outage . Press the side button on the ring pro to put the device in setup mode. I would then take the chime directly across the transformer. If your doorbell won’t power up then it is probably not receiving enough power. According to the specs, the power should be at least around 16 volts of ac power for the ring doorbell to work properly. The breakers are all on.as one will probably be tied to the bell transformer. After power outage ring doorbell not working check the voltage. I installed a n...