If the chime is powered by a transformer, and not batteries, (some can be
wired either way) it needs a constant 16 volts at the chime and a switch leg
from the chime to each push button. Once the push button is momentarily
pushed, the chime uses its self contained 16 volt power to continue the
melody until its finished. A standard ding-dong chime only requires a
momentary pulse of 16 volts to operate. If this device is replacing a
ding -dong chime, it may be wired incorrectly



wrote in message
oups.com...
We have a new doorbell with Westminster chimes that is hard wired.
When you push the door bell button and release it the door bell chimes
the first bell, but stops. If you hold the door bell button in, the
bell will ring through the entire 8-note chime. Does it sound like it
is miswired or defective. The brand is Heath Zenith. Thanks!