Did some online research and found this type of problem is typically a "control board" problem. Ordered a new control board from AppliancePartrsPros.Com. Arrived in two days with standard shipping. Installed the new board (found a YouTube video that showed all the steps). Took about 20 minutes total to install and reassemble the door assembly. Have run several loads and the problem looks to be solved. AppliancePartsPros had the best pricing for a new board. Shipping was very reasonable and very fast. I'm a happy camper!