Question about Bosch 24 in. SGS43C12 Classixx Free-Standing Dishwasher

Bottom Dishwasher arm not turning

I have a Bosch SGS43A52GB/04 dishwasher and the bottom arm is not turning and no water is entering the arm. I have cleaned the arm, checked the impellor and sump filters and there was nothing to be found. Is there a mechanism in the sump that controls the flow between the top and bottm arms as the top arm has water flowing and is turning?

Ben Heptinstall Jun 17, 2007

As far as I can see there is no water coming out of the bottom suplly tube. The model I have does not have a half load switch.
There is a single outlet from the impellor that divides somewhere to the supply for the top and bottom arms. Before I start trying to clear a possible blockage does anyone know if this is a simple Y type split in the pipe or is there a control mechanism that may be damaged by forcing a flexible rod through?

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236 Answers

Have you seen whether water is pouring out of the bottom supply tube with the lower arm removed? not 100% sure on this model but some units have a half load switch but that should turn off the top one. there may be a blockage in the lower water supply tubeways.

Posted on Jun 16, 2007

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