Kitchenaid Dishwasher - LOUD

Question

We purchased our dishwasher approximately 5 years and have been very happy with it. Except the past few weeks it seems to be getting louder and louder each time we run it. (I run the dishwasher approximately everyother day). It almost sounds like a grinding noise. It also appears to stop more often during the washing cycle.

Help! I can longer run the dishwasher at night because it so loud it keeps the childern up!

Maria