Dishwasher would start, run for about 5-10 minutes, and then shut off. It would stay off for about 20 minutes, where it would then restart where it left off and finish the cycle. (after doing some research i found that some people with a similar issue reported that their washer would continue to run and never shut itself off at the end of the cycle)
I ran the test cycle by pressing and holding the REGULAR WASH and RINSE AND HOLD buttons at the same time while turning the washer on. Then press the same two buttons again at the same time to enter the test cycle. ( your buttons may be different )
Once the test cycle had finished it was displaying the error code on the 7 Segment Display. Mine was "1" which meant there was an issue with the "Aqua Sensor ("Sensotronic")".
I assumed this had to do with the heating cycle of the water, because it seemed like the washer would always shut off when it should be heating the water or immediately after heating the water.
I determined that there may be an issue with the main circuit board, and set up to disassemble the washers main panel.
The following will document each step I took.
Step 1: Remove the Front Panel
Step 2: Removing the Control Panel
The red and grey 2-Conductor clip in the middle was power. Even though we had disconnected the power in the beginning I disconnected this one first in case there was any stored power within the system. The rest are signal lines.
Step 3: Removing the Main Processing Board
Once the circuit board was removed we could analyze it a little better.
Step 4: Analyzing the Circuit Board
I re-melted the solder and removed it completely with a solder sucker.
I then re-soldered the pad with new fresh solder.
I also touched up a few other pads that looked a little messy (didn't want them going bad in another month)
Step 5: Putting It Back Together
We flipped the power back on and started some cycles
So far the shutting off issue hasn't happened again
To put this repair into perspective:
If we had called the company they would have sent a repair man, probably would have cost $50-$100. He would have then said it was a processing board issue and that he would have to buy a new one, that's another $200. He would also then need to come back out to put the new board in, another $50-$100.
In the end this 30-60 minute repair may have saved about $400.
Not a bad number to me!