Do you need tools to remove the plastic face plate? Do you have to remove any of the screws? Do you have to remove the front of the door?
I can't figure out where the pressure points are to get it off?

I have a SHU5316UC/UC12 that must be about 7 years old. Got the 2H problem, got the same old vinegar and temp and authorized dealer song and dance from Bosch when I asked if any instructions are available for replacing the control unit. Tried the vinegar thing with no change. Ordered the AP2802870 (266746) unit from AppliancePartsPros.com, got it a few days later, works perfect. To replace the unit, I used a star (Torx) wrench to remove almost all of the screws in the back of the door (left 4 that look like they may be door hinge screws at the bottom). The big panel may fall to the floor, so careful. The new unit includes both boards and the plastic case, so it's just unplug the old, plug in the new. Don't force the old one out - find a few parts of the plastic case that act as clips and release them. Note - I first tried to just remove the top front door panel, but couldn't get it to re-attach to the bottom front door panel until I removed it too.

New update 7/22/09. I actually have two of these - the original owners liked to entertain and put two of these in the kitchen. The first one had the 2H problem a couple of months ago, though I didn't fix it until recently. Now, the other one has developed the same problem. Not going to try the fix-it-with-solder route. Tried the vinegar thing again, and it got rid of the 2H, but it still ran way too long the next time. I just ordered another control unit. Unbelievable.

We had same problem of Bosch dishwasher first starting with 2H, then counting down to 1, then suddenly being at 12, then just washing and washing without draining or ending. We pulled out the board and saw the burned out solder per notes somewhere here, soldered it with rosin core solder, & replaced it in the dw. Ran a cycle, it heated up much hotter than it had been, then it would go thru the cycle, altho it began at 62 instead of 72 for the count down. There was no jumping around with the count down, but it stayed stuck on 1 and still would not turn off. So I did a cycle with the 2 cups of white vinegar in a bowl on the bottom rack twice. (Just to be sure I really got whatever I was cleaning clean.) And it is now working just like new. It is 9 years old, so altho we've never soldered a circuit board before, it was worth the try. I'll add the vinegar trick to my yearly maintenance plan. I have heard of this before for clothes washing machines, especially those that do not have a manual lint collector. Thanks so much to everyone who posted this great information.:):):)

Read post by Michael V about halfway down. It may be the same two black wedges.

Bosch Dishwasher Control Module (266746) | ApplianceJournal.com

may you have a nice day