Kenmore Washer Won't Go Into Drain Spin Cycle?

We have a Kenmore front loading washer that won't go into the drain and spin cycle. When the washer is done we have to put the dial in drain and spin cycle. Then it works fine; it pumps out the water and then starts spinning. It just won't do it by itself in the run cycle. Can anyone help!

By Rod H. (PA. Fireman)