Update time. My brother let me know he bought the extended warranty. So - he called Lowes, the sent out their "certified repairman" and he pushed the energy saver and lighting button for eight seconds (taking it out of test mode) and said, "Problem solved..." Yeah, right.
So, two months later his little magic trick of skipping out of test mode doesn't work - the display is now locked on the flashing 8s screen. This time I called for my brother. Spoke directly to the tech's wife (found out they run their shop out of their garage - husband and wife tag team. Found out he didn't have access to the tech sheets, so I read them what Samsung said to do when that part of the digit was flashing. He ordered the main PCB board and installed it two days ago. No joy - still flashing the same digit as before.
He called a buddy and he told him the flashing light meant the heater element was bad. So, he said he would order one and try that. I'm not sure how they arrived at that, unless he didn't correctly communicate which segment was flashing. Anyone have any real ideas? Thanks.