Thank you for submitting a question to Manage My Life.
I am sorry you are having problems with your dishwasher.
Most likely you have a bad door switch or blown thermal fuse. I have included an image below that details these components.
The diagnosis of this issue will require the use of an ohm/volt meter and you will have to perform ohm checks and/or live voltage checks. If you have an ohm/volt meter and are confident in your technical abilities, please reply below and I will be happy to give you the checks.
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 for parts purchases or to view your parts list diagram
Sears Parts Direct
Thanks again for using Manage My Life.