^FINALLY - got the fridge the work. YES, it was the
   relay/overload switch. BUT I got fooled - the freezer fan didn't
   start up right away, and I was sure that "oh, crap, gotta
   replace the FAN" now. But an hour later ,I look in the freezer
   and "whirrrrrr" - spinning happily again. At least now I know
   that the replacement is $43 should the freezer fan go. Everybody
   seems happy to be filling the fridge up again.^