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I am including the tech sheet for your dishwasher in the images below. The tech sheet includes a troubleshooting guide and the service cycle diagnostics. Run the diagnostic cycle and follow the diagnostics cycle time chart to see if all components are functional.
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services
Here is a link that you may use to view the parts list diagram or to purchase any parts needed;
Sears Parts Direct
I hope this is helpful. Check the things I have covered here, and if I may be of further assistance, include more details, in a reply to this post.