Remove the bottom rack.<br><br>Inspect down in the bottom of the dishwasher to see if there is any broken pieces of glass or similar.<br><br>If there is no visible items, you will need to remove the bottom wash arm of the dishwasher and inspect for something that may be underneath causing the noise.
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Remove the bottom rack.<br><br>Inspect down in the bottom of the dishwasher to see if there is any broken pieces of glass or similar.<br><br>If there is no visible items, you will need to remove the bottom wash arm of the dishwasher and inspect for something that may be underneath causing the noise.