My A1 was down on May 6th after I sent a print home, then received an extruder error about 20 minutes later. I wasn't home to deal with it, so I cancelled. When I got home, this is what was on the print bed.
Print_Gone_Wrong_01.jpg
At first I wasn't sure what happened. But I was in a hurry to finish the print, so I moved the new roll of filament to the P1S and everything printed fine.
Print_Gone_Wrong_02.jpg
The ejector / deflector was wadded full of filament!
Bad_Hot_End_01.jpg
It took me several days to get back to this, and my first few attempts at cleaning the nozzle failed to yield results. Finally, I replaced the Hot End and now we're back up and running.