Bosch Dishwasher SHP65T55UC has no power after E:15 error

[zofiava]

Last week, my garbage disposal backed up, and plunging the sink seems to have forced even more water into the dishwasher than was already there.  Got the E:15 error, got all of the water cleared out.  The float is down, so flood switch is not activated.   The problem is that now that nothing is lighting up in the control center.  I thought there was no power at all, but the "info light" blinked somewhat faintly at some point while the rest of the machine looked DOA.  

My husband wants to get rid of it, but it's less than two years old, and I want to at least try to save it.  All of the wires seem to be in place, as far as I can tell.  

Is there anything glaring that I should check?  

Thank you in advance for any help you can offer!