Our grinder suddenly stopped grinding one morning. The bean hopper
had a section cracked out at the bottom. So we replaced the hopper,
and it still didn't grind.

A miniature microswitch completes the power circuit when the hopper
is in place, and turned to a grind position. The nubbin no longer
sticks out far enough to be actuated. Jura carries no replacement
switches.

But the Philmore Sub-Mini Snap Action Switch with Pin Plunger
Part No. 30-2500, which I just bought at Frys, appears to be a drop-in
replacement. Its nubbin stands proud of the housing, which appears
to be identical. So for $2 I can get this thing going again.

(I know how to work with 120VAC, solder, use heat shrink tubing, etc.)

I will tack on a response to this when I have finished the repair.