Hi Jim,
Yep, we've had the non working doorbell problem. It's n ot working now but I fixed a broken wire inthe handle once and replaced the button.
I've heard of a place where you buy the handles and perhaps they would have the doorbell hardware too. Try:
Source
Fleming Sales
2101 Industrial Parkway
PO Box 277
Elkhart, IN 46515
574-295-0234 Audie si great help (so I'm told)
Please let me know what you find out. Thanks
kixrock@Gmail.com