"RBM" rbm2(remove wrote in message
...
You are correct, you have a closed circuit on the switch leg. The two
wires to the button are in contact with each other somewhere along their
length and you must find that connection and repair it or replace that
piece of wire

Easier solution. My doorbell broke 23 years ago. I disconnected it.
Friends come to the family room door. Anyone that actually rings the front
bell is not someone I want to see anyway.