water wont stop running?

I have a Kenmore 70 series washer and i have had this problem happen on 2 kenmores.
when it hit a certain point at the beginning the water keeps running and the cycle stops except for the water but it doesnt get any fuller.
How can i fix this or do i need some one to fix it for me,or is it not fixable?
On my other washer I could only do medium loads cause it would do this when i wanted to do full loads