![]() Since you have changed the pump and the control panel but not the control board first try using an Ohmmeter to check the continuity of the pump power supply wires from the control board to the pump. ![]() If only the top spray arm hasn't moved then it may be a blocked pipe from the circulation pump to the spray arm as usually the lower spray arm is connected nearly at the pump housing If they haven't moved then you need to check if power is getting to the circulation pump or if both spray arms dispensing holes are all blocked which would seem unusual. It is the water pressure from the circulation pump that causes the arms to rotate, dispensing water. After it has filled and started to "wash" open the door and check the position of the spray arms. Try placing both spray arms in a position that you remember and then turn on the dishwasher. Have you checked that the spray arms are moving or have moved? What is the model number of the dishwasher? Plus, the noise, which isn't terrible, just not normal, sounds like something isn't functioning properly. My gut tells me it's pump related (despite it being able to be drained) since water isn't being pushed up into the spray arms. I'm assuming there's another heating element that may play a role in this? Where is the circulation pump located? Not being a technician, if I'm able to access the circulation pump, how would I know there's something wrong with it?Īs for the heating element, forgive me if my comment is stupid here, but the water is getting heated, when it runs I can feel the heat when I open and cancel the cycle. The test ran for about 5 minutes and it wasn't clear when it ended. When it entered, it showed "2" immediately, which seemed odd for the test to start out showing an error, that's why I wrote it off. It took a number of times to get it right. ![]() I ran diagnostics by pressing normal and rinse/hold then the power button. And I’d even do the repair myself if it was reasonable.Īny help would be greatly appreciated, thanks so much! What are some options causing the problem? I’m not finding much information online and before I call the handy man, I’d like to narrow down my options because their troubleshooting gets quite costly. Bosch told me to reach out to an authorized service tech. The Bosch manual is terrible and provides zero information on this. I’ve run the diagnostic, but I don’t believe that’s working properly (only showing the number “2” which isn’t an option online). And sometimes it will sit on the last minute until I cancel the cycle. It’ll run for the duration of the cycle, but it won’t cycle through the different modes. I’ll start it, hot water gets pumped in, and there’s a loud hum sound. The spray arms are clean and the filter is clean, so I don’t believe that’s the problem. My Bosch shu43c05uc/17 dishwasher isn’t spraying water or cycling through.
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