The washer stopped DEAD in the midst of a wash cycle. Upon inspection, a trace on the PCB that brings in the AC line to the heater relay and beyond was burned clean off around the relay pin with signs of arcing around it. The trace seems awfully narrow to be handling heat coil level current. This looks like an undersized trace problem to me. There was a pinhole in one of the smaller chips as well. indicating it's destruction.
SOURCE: Smelled like burnt board
reove screws holding on outer panel and unplug all the leads ( they are all coded so you cannot cross them ) open up plastic cover on module to reveal circuit boeard
SOURCE: Bosch SHU43C
My SHU43C is just over 3 years old. I had a similar problem recently. First, there were a few floods. Then, the Bosch only drained non-stop. Even when I used the Cancel Drain buttons the drain pump would run without stopping. When I tried to run one of the cleaning cycles, no water entered the machine. Corrective: I removed the base plate, and saw that the red plastic floatation device was in the up position. Using a flashlight and a wooden spoon, I lightly toggled the red float stem down. I pushed regular clean cycle and kept toggling with the red float stem until the rinse water started to enter the machine (turning the red stem seems to also actuate a step in the program). Now the dishwasher runs normally. Voila!
SOURCE: When the washer gets to 1 in the cycle, it doesn't stop washing.
try running the test cycle or running delicate economy in that cycle it gets up to 150 degrees in the very first cycle let it run 15 or 20 min see if the water is screaming hot it is not and Luke warm it is not heating it is most likely a control board heaters very rarely go out
SOURCE: SHU5315UC control panel
My bosch dishwasher finished a load and noticed for a period of time it was making a humming noise,i opened the door and it contnued until i pressed off.With the power button on the noise continues with door open or closed,maybe its the pump the continues working.It shouldn't activate any cycle until you close the door.What could be the problem.
SOURCE: completed solder proceedue about 2 months ago.
Hello
Welcome to FixYa.
Based on your post, the solder may not have been sufficient to hold, or as you alluded to, the relay itself has failed now.
The best thing to do at this point may be to remove the control, clean up the point of soldering really well and retry thr repair to see what results.
If this is indeed the SHU43 series dishwasher, there are two different diagnostics possible, one of them is presented at this link from my profile...
http://www.fixya.com/support/t6347232-shu_4322_dishwasher_fills_water
...you`d have to provide the complete model number to identify which one applies to your machine.
The other opton I`ll leave with you is the possibility I can email a guide which includes the tests and other service tips.
Contact me at [email protected] if interested and provide your FixYa username so I can identify who you are.
I`ll watch for your reply, good luck.
Regards,
Macmarkus :)
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