<< Any Ideas? >>
Likely not related to potatoes. Check the leveling screws, any coils on the
back touching a hard wall surface, shelves missing a support peg, things like
that. Vibration has to start with something out of kilter, so inspect the
workings at the bottom for a misplaced compressor, evaporator fan that's in
trouble, flapping shrouds...you get the picture. Good luck.