i have a similar problem. had a power outage and when the power was restored the doorbell would continuously ring, escalating in volume. i just unplugged it! any suggestions?
If you push the buttons (try both front and back doors) does the doorbell reset itself and then work normally.
A doorbell power failure indicator that causes it to ring continuously is not a good idea because no one might be home and the sound would give away the fact the house is unoccupied.
When cleaning anything including baby diapers, it is better to sweep off or scrape off as much solid and semisolid material as you can first. (1) Less cleaning fluid or detergent needs to be used, (2) Less of a mushy mess which in turn means that bleaches or disinfectants will be more effective.