I have an Amana adb1400 awd1 dishwasher is stopping and draining after the cancel light would come on without being pushed. To me is seemed to go thru the 1:40 Fill and most of the 6:15 wash then auto stop and have red cancel light come on and drain. I did a service diagnostic test and came up with 5-1 locked door problem, 6-1 low water problem, 6-4 float switch open problem and 6-6 low water temp. i have torn into it and found no problems I could see yet. any ideas?