L.D.P. for Model Number SHE55M12UC164 Around Xmas, I started my Bosch dishwasher before going to bed and when I woke up, it was still "running." It was humming but I believe was showing "0" on the timer. I opened it and could tell it had not washed the dishes although the soap door had opened up (and the soap chunk was still in it.) I couldn't get it to start filling with water. When troubleshooting it later, I saw someone online mentioned testing it with a gallon of water to see if it would run or drain. Much to my surprise, it started running like normal. It's been running perfectly until today (2/26). (I run it only a couple times/wk). My gallon of water trick did not resolve the issue this time. I did try waiting a few hours in case it needed to "cool down" (if some sort of overheating shutoff exists.) One thing I've noticed since I got it running again after Xmas is a mechanical smell. Not an over burning from what I can tell, just the smell of a "machine." Observations (most are similar to what was happening at Xmas): - It's not filling with water but hums. I can't tell if it's a draining hum or just the sound it makes when the cycle is running. - It continues to hum when I open the door, which is odd; normally opening the door shuts it off. (I can make it stop by resetting it and powering it off.) - When doing the gallon test this time, it drains immediately and completely (from what I can see.) There have been no draining issues while it's been working. - I don't have a visible float switch so I can't easily troubleshoot that to see if it's sticking. - There's no error code. I tried to find the method for running a diagnostic to obtain an error code but couldn't find one that worked for my model and the owner's manual does not speak on the topic. - Today, it again did not run at all. The soap door opened but the soap chunk was still intact. - Today, I started it at noon and realized at 4 pm it was still "running" (humming). It was showing 1 min left and had to be reset for it to clear the screen. 1 min left is possibly a drain error code? - Power and water are getting to the machine. I thought I had narrowed it down to either a faulty 1) water inlet valve or 2) float switch, but after reading other postings, esp with the "1 min left" indicator, could it be the control panel? I'm hoping the fact that I got it running again after filling it with the gallon of water at Xmas plus the mechanical smell might be clues to what is the root cause. Thank you
Answer Hello L.D.P., This sounds like the flood switch has been activated. The drain pump will run constantly, even with the door opened, because the dishwasher thinks the fill valve is stuck in the opened position. This will make it sound like it is running when the drain pump is the only thing running. You will need to remove the water valve and use the opening to clear the water from inside the base. Do this by using a towel with no fabric softener in it to wick the water from the bottom of the base. Use a screwdriver to push the towel down to the bottom to wick the water out. You will then need to replace the water valve 00622058 to prevent the problem from recurring. Read More... Answered by AppliancePartsPros.com | Thursday, February 27, 2020