Repairman came Thursday and determined it is the defrost switch that bit
the dust. One is on order and he said it is _around_ $20; but I bet
the service call will be over $100+. Part should arrive Monday or Tuesday.

He showed me the ice encrusted coils and said if I defrosted them, then
turned the freezer/refrigerator back on it would be fine for about 5-7
days then the compressor would stay on but no cold air for the 'frig.
I put my hair dryer in the gap where the ice maker was connected and left
it on for about 30 minutes. Then I switched to a small fan then back to
the hair dryer for another 30 minutes. F o r n o w, the refrigerator is
working like a champ but I know it will freeze up again but the switch
should be installed before it happens again.

Oh, he also completely removed the ice maker that never has been hooked up.
That freed up about a shoebox size area in there! Glad to see it gone. But
there sure was too much food and condiments that had to be trashed.