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.
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.