Put 4 cups in corners of upper and lower racks. Upper rack cups did NOT fill. Discovered manifold probe P# ap3082739 was broken. Replaced it problem still not fixed. At what angle should probe be inserted. Old one was at 4:30 10:30 angle is this right? Also discovered three small oblong holes in the bottom of the spray arm, each a different size Two on one end and one on the other end. Should they be there or are they cracks from spray arm hitting objects?