Hi Lynn, that is a sigh of a bad main control board. Unfortunately on this model the only way to fix this is to replace that board. Its easy enough if you are handy. It only requires a few basic hand tools as well. And I will help you if you decide to do this.
PLEASE RATE KINDLY BEFORE CLOSING THIS PAGE, so your question will NOT close or TIME OUT ;-)
No additional cost to you to rate and then I will stick with you until this is fixed and working as it should.
Thank you and have a great day!