Dishwasher won't drain. I own a Bosh dishwasher. A repair person took it out and drained the

Question

I own a Bosh dishwasher. A repair person took it out and drained the bottom. At that time, the dishwasher would not run water because the floats were pushed up not allowing any more water. The repair person could not find any leak in the bottom of the dishwasher, and he told me to just run it again to see what happened. I did, and now the dishwasher will not drain. What do you think the problem might be?