The bottom arm was spinning but slowly, and the top arm … Spray arm nozzles clogged. 4. There is no evidence of any blockage any where in the dishwasher, as water flows freely when I have the individual parts apart. I bought the tabs and have been using them for three days. After a bit of advice if possible. 2. They should spin freely. I called Bosch and the young customer service rep gave a standard reply: 1. use the Finish PowerBall tabs, and 2. clean it with dishwasher magic. 2. Improper use of detergents. If the arms do not spin, the unit might not finish the cycle or will only clean some dishes. Remove the spray arms and clean according to "Check/ Clean the Spray Arm Nozzles" 3. I know all the basics so I removed the filters and cleaned them, took all the spray arms off along with the riser tube, checked that everything was clean and clear and then ran a cycle with the filter parts in the rack and a heavy vinegar load. The water inlet valve was the root cause. Filters could be clogged. The key to any dishwasher’s ability to clean the dishes inside is the spray jets. Inspect the seams of the arms for splits. If your dishwasher has a spray tower or spray cap attached to the top of the arm, you must twist it off or unsnap it to access the nut. 4. My Bosch dishwasher stopped cleaning its loads a few days ago, and I determined that the spray arms were not turning. My dishwasher was not cleaning the top. What could be the cause? Lift up the spray arm from the end. I reassembled the whole thing and now the dishwasher is draining just fine and the bottom arm is rotating freely but the top arm is still not rotating. I hear it making sounds but everything is just getting wet but the spinning jets are not going around much and the soap tray doesn't em ... My maytag dishwasher's top spray arm does not spin or spray water. My smu2046uc/14 bosch dishwasher is not washing. I bypassed the door interlock, and ran the unit with the door open (likely not a good idea, but only for a few secs). There should some play in the arm allowing you to wobble it up and down. I bought the Bosch dishwasher two years ago, 2/2011, SHX68P05UC/63. Ensure that spray arm movement is not blocked by hand rotating spray arms. I could tell when I opened the door prior to cycle completion to add something that the arm is not spinning. Increase or decrease detergent depending on the water hardness. there is power. 3. JLayhew January 2013 My Bosch dishwasher hasn't worked properly today and it appears that the spray arms are not turning. I have just cleaned out the internal flow tube and found nothing. Clean the filter. 1. Ran the unit again with no top arm, and there appears to be water coming out of the connection, but looks at a low pressure. The top arm was not spinning, since the water pressure was too low. The top spray arm is not spinning on my Bosch dishwasher. 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