Question about Bosch 24 in. SHX33A02 / SHX33A06 Free-standing Dishwasher

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Under counter Bosch,grinding noise

When first turned on it sounds like a grinding noise, then stops and cleans as usual quite... toward the end of cycle it grinds stops grinds stops then dry cycle quite then it beeps and done. Where is this noise from? 4yrs old

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Re: under counter Bosch,grinding noise

It sound like a pump issue. Open the service panel, remove the pump and try to rotate its pulley manually, it should turn freely.In case it doesn't,check if it is clear from any foreign object or it should be replaced. Good luck !

Posted on Sep 06, 2007

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there is a screen filter in the hose end where it attaches to the supply valve. this is usually under your sink. turn off the water valve and undo the supply hose ( usually gray on a bosch). pull out the rubber washer, and then remove the filter. clean and reinstall it. the noise is usually due to the sediment in the filter causing the water pressure to fall. you can hear the fill valves flutter when it is trying to take water in.

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Loud grinding noise that should go way after one complete cycle. After 3 cycles it just gets louder and louder.

Remove the lower spray assembly and clean out the sump area.
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LGDishwasher makes grinding noise several times during cycle

Please confirm that you have an LG LDS 5811 dishwasher? Approximately how many years old is the dishwasher?
First things first: regarding the 'crud' Run at least one cycle, with no detergent powder added - and when you go put in the extra water, add up to two cups of vinegar plus more water and let it run until it errors. This will not fix the major problem, but staring with a clean sump area (and keeping it clean) is a good start. FYI: Stop using all gels and tablets, switch to a brand name detergent powder-like Electrosol or Cascade. Always use high quality powder in all dishwashers, especially energy and water conserving DWs like the modern LG models.
Next, given that you are getting an E! code, triple check that you do not have a leak, especially directly under the dishwasher. If not, start at the end of the DW drain hose (does it connect to a sink disposal?) follow it back to the DW. That hose must rise to at least the height of the bottom of the counter top or be connected to an Air Gap valve. If the hose does not have that rise in it, your problem is caused by natural siphoning out of the dishwasher into the drain. Either add an air gap (even if you don;t have a sink disposal) or suspend the hose high from the bottom of the counter.
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Pull the lower spray arm up and out. Remove the nine phillips screws that hold the filter down and then pull the filter. Wash out the "self cleaning" filter housing.
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Then inspect under the filter in the sump area for any debris. Remove it but watch out for broken glass! Use a flashlight and look real close for anything foreign.
Inspect the Impeller, look for damage and confirm that it spins easily but is securely attached.
Reassemble and test out.
Good Luck!

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Grinding Noise

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Our Bosch had a similar problem. I think something was stuck in the pump and causing the rattle. Remove the filter and clean out any gunk and/or water left in the sump. If your model is like mine, the pump cover is on the left and can be removed by unscrewing on Torx screw (I didn't have the right size torx wrench, but mine came out easily by turning it with needle-nose pliers). Lift the cover off and see if something in there is causing the rattle. Clean and reassemble

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