My washer suddently began to stop a couple minutes into the cycle and is flashing a fault code F50. It is a Kenmore Elite Oases HE.

This site seems to have the answer.

kenmore elite oasis getting code f50 - JustAnswer

Here is the answer from that site:

"Thank you. I have seen this many times. The manual says "F50 = Motor Stalled" so first thing you want to do is just take the tub and make sure you can spin it freely. If it does, then I have found that the control board is at fault. Replace it and you should be good to go. Here is the part number W10189966 "