Thank you for submitting a question to Manage My Life.
I know how frustrating it can be when appliances do not function properly.
Thank you for giving your model and serial. The "F" should be followed by a number, this is important for knowing what fault the control board detects. This washer has a test routine that will help in diagnosing any potential issues, and will reveal the entire fault code. I am including this testing information in the images below.
This washer is driven directly by the motor it does not have a belt.
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. I am looking forward to assisting you again in the near future.
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 and for parts purchases;
Sears Parts Direct
Thanks again for using Manage My Life.