I just called Sears to get an appointment, and as soon as I get into the phone system and it registers what number I dialed from, the automated voice announces that my appointment is Thursday between 8 and 5. Yet again, the "customers must function for the convenience of Sears" attitude strikes--they set the appointment, and I should be here waiting. I suspect if I hadn't called, the first I would have heard of it would have been a robo-call Wednesday night.
I did talk to a real person and get the appointment window narrowed to 1-5 Thursday. I leave Friday morning for Disney, so that's the last chance at it for 10 days. If it appears to be fixed when I leave, I guess I'll put the non-perishables like my whole-wheat flour in it, and see if it's still working when I return. That should be long enough for any leaks to appear. I hope.