We have necht dishwasher from Kitchens as well. Does it always not stay closed or just sometimes? We found that if the top shelf does not go in straight, it does that sometimes. At the back there is a hole that the top shelf fits into - if it does not go straight back it misses the hole and the door will not shut.
Hope that helps.
Did you find a number for Necht as our dishwasher now has error message and won't stop beeping.
D K, October 2006