Either because you couldn't be bothered having it serviced regularly, or you've done something wrong to it or, it's just plain had enough of it all and conked out. Well look, it's not the end of the world because the Bamber Boys can nearly always fix a conked out sewing machine, it's what we've been doing since 1946 when Dad first came across a sewing machine on a bomb site in Salford. He repaired it and sold it and... well that's what we've being doing ever since. When we can't repair your sewing machine it's because it's so old we can no longer get the parts or we don't think it's worth spending your brass on it.