Removing the filter module

A mounting bolt fell out and went into the drain where the filter module and motor are. I can see it but I cannot get to it. I am concerned the bolt will clog the drain eventually. I cannot figure out how to get the filter module/motor out so I can remove the bolt. I have removed the nozze cap, washer, lower spray arm and the top of the filture moduel but that is as far as I have been able to go. Any thoughts? I don't want to pay over a $100 for service when the dishwasher is not broken! Appreciate the help.

Steve