I replaced the doorbell chime with a heath zenith 2735 from the approved list same issue.
Ring pro doorbell chime buzzing.
No more annoying hum.
Looking online there seem to be plenty of reports of people having trouble with buzzing chimes usually when they first connect the doorbell and sometimes after a month or two.
My ring video doorbell 2 is buzzing non stop after working well for 6 months.
But then one of the ring pro s started going offline due to low voltage.
Disconnecting power causes two major problems.
That worked successfully for a couple of weeks.
Furthermore they informed me that i need a 30va transformer for my mechanical door bell.
The internal mechanical doorbell works perfectly the ring does not.
First the ring device will no longer charge.
Your ring pro requires a power source that supplies a minimum of 16 volts ac.
Problems can arise however when a doorbell mechanism draws so much power that there s not enough left over to power your ring video doorbell pro.
When the ring pro was setup initially months ago i disconnected the downstairs chime box because the doorbell can only be setup to receive power from one transformer.
Was getting 12v out but only 6v at both chimes and ring doorbell.
When i contacted ring support they informed me that ring doorbell 2 does not have the doorbell chime type setting.
When i originally installed my ring doorbell pro i upgraded my transformer to a 16v 30va.
So as a sanity check i tested the downstairs chime box i left the upstairs box disconnected and still received buzzing.
Your ring video doorbell pro is designed to draw power from the same 16 volt ac power transformer as your internal doorbell mechanism.
Very good article for ring doorbell pro.
I then replaced the transformer with a new 16v 30va transformer recommended for ring same issue.
Disconnected the ring doorbell and reinstalled old doorbell button.
I ran brand new doorbell wire to support this installation.
Mine is only 10va so they are sending me a replacement one that is 30va.
No more buzzing 12v at both chimes and button and doorbell button and chimes work again.
Second the indoor chime won t ring when someone hits the doorbell.
For ring pro to function correctly the voltage needs to be listed as good or when you tap it at least 3 900mv.
I hung my old indoor chime cover over the exposed wires and pro power kit t hen i ordered a wireless chime from ring that i ll configure into my system.
To check the voltage of your ring pro open the ring app select your ring pro and tap device health.
Ring doorbell guide working about 10 15 days ago and guessing from low voltage and not enough to keep the battery charged.
