A cause of the problem could be:

1. Overloaded washer.

2. Clogged drain or kinked drain hose.

3. A foreign object stuck between the inner and the outer tubs.

4. A bad drive block.

5. A bad clutch.

The first thing I would do is make a smaller load and see how it will work.

Check the drain hose behind the washer.

Remove the cabinet and check the drain hoses, the pump and look through the outer tub for a stuck clothes.

Check the drive block.

Post your findings.

Gene.