Wrap up: It wouldn't have been one of my plastic bags over a vent (I thought the intake might be near the bottom at the coldest area--it's not, it's near the top). The diffuser motor was not working, or was working only intermittently. If I'd had a manual I'd have known how to confirm this with the fridge's little computer (hit on/off and reset at the same time then click through the lights for the freezer and each one represents yes/no on various motors.) The module for the blower motor was tidy and easily replaced. I could have done it myself, though for the time it would have taken to order it and then to get myself to the point of doing the job myself we'd have spent the $229 on eating out. I can now go get my frozen food back from the neighbor's house (I could have left it in my freezer, but it was nice to be able to totally clean out the compartments).

If I'd bought and repurchased the annual warranties companies offer over the years I'd have paid more out than this repair cost. I buy appliances because they have a reputation for durability and quality. I this I seem to be "self-insured."

SRS