I am unable to find this manual online. Does anyone have any suggestion for sites where it might be?
ecowen:confused:
Looks like the only way you can get it is to call Bosch (1-800-944-2904) and order it from them.
Gene.
I’ll keep an eye out for one. I think my husband found one in German, but his high-school German is as about effective as a Google translation… lots of fun, but not very useful for the nitty-gritty details. 
We did manage to find the procedure to place it in its’ diagnostic mode, and yes, it let us know there was no heater function ( the infamous burnt board/cold solder joint/bad heater relay ). BTW, we found an overheated plastic splash shield inside the door cover that would suggest that the original oem relay was maginally sized by the designers. I would suggest that it overheats due to the load it’s carrying, and the heat passes into the circuit board.
Maybe the board is able to handle that much heat on a mock-up in the design lab, but installed, it is sandwiched between the cover insulation, and subject to the 140+ water temp. and just can’t dissipate the extra heat.
This things working out to be better than a cross-word puzzle! 