My Horizon says E3 :(

I was innocently sewing along when all of a sudden my machine gave a long "beeeeeeep!" and stopped. Then the screen said "E3" and wouldn't sew.  I did all the things you do when your machine acts funny.

First I turned the machine off, waited a few minutes and then turned it on again. Still "beeeeep!" and E3.

I re-threaded top and bobbin threads.

I took out the bobbin and the bobbin case, got out my little vaccuum  and cleaned everything out really well.

I put a little drop of oil on the wick.

I flossed the tension disks.

Still every time I turned it on there was the "beeeep!" and E3 error message.

So I unplugged everything and went away and banged my head on the wall and ripped out all of my hair in frustration. Surely that would help, right? To distract myself I played a little Sudoku on my Ipad.   Hours later I went back in and timidly plugged it all back in and turned on my machine. "Beeeeep!" and E3

I called my dealer and took it in. I guess there is something called the "Step Motor" that is broken. I asked them if it was something I did wrong, and they said no, it just happens sometimes. They are trying to order the part for me and have it shipped overnight, but although I went in yesterday morning, they said they couldn't reach Janome all day yesterday (?!!).

I finished all the piecing yesterday on my trusty old Featherweight. I talked to my dealer this morning. The part is supposed to be shipped today. For some reason I can't fathom they decided to have it shipped 3-day shipping instead of overnight - GAAAA! I am getting on an airplane next week to fly to CT, and I need to take these two quilts with me!

If we all cross our fingers maybe it will get here sooner?  Please join me.