I'm on my 2 Bernina. She is 7 years old, I have had troubles with this one, it is the quilter's edition.
I had something go wrong with the back up button, which I seldom use. it went into the housing and got stuck. Which when I did use it, would push it further back. Then it shorted out the circuit board, which I had replace around a year ago, and was told I was " hard on machines".
I ended up taking it to a Non authorized repair man, because i was having problems with it again.
He said something interesting, " you either dropped your machine on the floor, or when someone took it apart they tightened the screw so much they broke where your screw and the housing came together.
that is a lot of money later.
I just purchased a Viking and had my Bernina fixed again. So I have well over $2000 into a machine that still has loose housing unless I replace the complet out side cover..
My light fixture hangs down, but my back up button now works.
I should have dropped it, i wouldn't continue to pour money into it.
sue