Washer will go thru entire cycle but timer will continue to run - will not shut off 
Lets check the pressure switch first to make sure it is working properly. Unplug the machine and gain acess to the pressure switch.(water level switch) Unplug the switch and test where the yellow/black wire was to the violet wire was on the switch. With a multi-meter this should read closed continuity. If open you have a bad pressure switch. If closed you have a bad timer. I will list both parts on here for you. Hope this helps.
[part]AP2045895[/part]
[part]AP3191755[/part]