On 6 Jul, 14:11, wrote:
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!

It one note enough to get you to answer the door? If so, leave it be.
Who needs 8 notes to tell if there is someone at the door?