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The first thing I recommend is checking for error codes. This washer has a way to recall error codes. If the control detects a problem it will identify it with an error code. I am including this information in a set of images below.
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
Please perform the diagnostic tests detailed here and report back with your findings. Be sure to record any failures and when they occur along with any error codes that are displayed.