Just read a long series of fixes for this problem (which just showed up on MY Bosch DW) over at www.reviewcentre.com
Read the reviews of ALL the Bosch DW, and you'll see a major theme of defective (yet DIY fixable) relay on the circuit board. I'll look at mine tonight and see if that's my fix, too. Good Luck.
Clark from Walnut Creek, California, December 2004