Create Fault Tree examples like this template called Fault Tree - Doorbell Failure that you can easily edit and customize in minutes.
Doorbell failed to ring
Bell-solenoid unit
fails to ring
Low voltage from
battery
Switch fails to
make contact
Contacts broken
High contact resistance
Clapper not attached
Solenoid link broken
Clapper stuck
Clapper broken
Positive pole broken
No electrolyte