You can always take the bells off the door and hold them for her to sniff and touch to show her there is nothing to be afraid of. Anything different in our house gets ours barking. Yesterday, the box on the floor from UPS might have been trying to kill us so they let us know!
You can put alittle peanut butter or cream cheese on the bells to get her to lick them and move them so they ring. She'll get it.
Molly and Murphy (tri), Katie (ruby), Casey (B/T),Spike the wonder pup (tri), Suzie (tri) and Penny (blen)