We've had this problems for ages, sounds like a design fault. The quick fix is to put less washing in the machine.
It seems that overloading the machine causes things to get jammed.
Since doing smaller washing loads, we've had no more clothing casualties.
However, our 1503 AS now doesn't spin every time time.
All in all, I don't recommend the BLOMBERG 1503 AS.
Rich Hayward, June 2007