Question about Siemens 24 in. SL84A305UC Built-in Dishwasher

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Dishwasher doesn't run there is a hummmimg

Dishwasher doesn't run there is a hummmimg noise behind where the water enters the bottom of the washer

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There are a few possibities...
if you remove the lid (no screws on lid, there are two clips at the rear, release them and the whole lid wil slide back and then off) and take the two t20 screw off the left side panel at the front you should check the pressure chamber and its hose are not blocked. Use the link and go to page 4, part 0428 and 0426. You can also remove 0420 (remove t20 screw via the sump after all filters are removed) this will expose the pump impellor and you can check for any obstruction. There may be water in the base of the d/w (base as below the tank, not under the filter) this will activate the flood safety and give the scenario you have described, so check valve, hoses etc for leaks
https://www.bosch-eshop.com/eshop(bD1lbiZjPTAwOQ==)/bosch/gb/prodp.htm?prod=SL84A306UC%2f26&ESHOPTYPE=S
I appreciate that this is not you model but the parts should be in the same position.
Best of luck. (check the pump first as I think this is more likely from description.

Posted on Jul 11, 2010

  • Roni Davey Jul 12, 2010

    PS- I forgot to add the most obvious possibility...

    have you checked that the water tap that feed the d/w is on as the humming could be the valve being energized but no water available.

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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