I have a BOSCH SHU3505/UC/U12 and it also shows 2H and basically takes forever to finish a wash cycle - 3-1/2 hours. And we have had issues with all the wash cycles for a while. By reading the posts I also am looking to replace the control module and would like some specs of the unit.

Thanks for the post. In the same boat.

- BO'C

I have a Thermador Dishwasher (Made by Bosch) and have a similar problem. I found on this web site under dishwasher repair a PDF titled trouble shooting bosch dishwashers. In that document it has several trouble shooting tips and several testing proceedures. I found that the solder Joint on the control board got hot and now has a cold solder joint.I thought that I found the problem which was a problem also. After finding that problem I decided to look at the other things that were connected with the long run times and luke warm tempratures. Before I found the troubleshooting guide I thought that the problem was surely the heating element but when I tested it I found it to be good. The test that I did that was recomended was to check the resistance of the NIC which is a thermocouple. The resistance changes as the temp increases. The test was to check the resistance when it was room temp. At room temp it should have registered 55 ohms, mine registers nothing. It is open and the heating element cannot work if the NIC is open. I priced a new NIC at AppliancePartsPros.com and it is about $35 bucks. The file I downloaded is bosch%20dishwasher%20troubleshoot[1].pdf. It might help you determine the problem so you can order the correct part you need.

I, too, replaced my control module and the dishwasher is back to working again. Part was about $125 and installation took me no more than 15 minutes. Very simple and easy fix.

No, the NIC did not solve the problem. I ended up replacing the control module because after I found the bad solder joint on the old control unit and soldered it and reinstalled it, it still wouldnt work. The funny thing is or I should say the embarrasing thing is, When I installed the new control panel it still wouldnt heat. I was so frustrated by then. I started testing some more and found the NIC was open again. So I tested the old one again and it was closed. Somehow during the process of my installing and replacing parts I stuck the old (Bad) NIC back in. I put the good NIC back in and the dishwasher worked. Then I thought my old control panel must not have been bad. So I tried it again but it didnt work correctly. The LED's lit up but not like they were supposed too.

Actually that was the easiest thing to replace. Be carful though when you take the face plate of the front of the dishwasher You can easily break the little plastic tabs off that hold it on. I broke 2 off but was able to glue them back on with Black ABS glue. I had it off once before with no problem but the second time I took it off I forgot how it came off and pried too hard and broke them. Good Luck.