Thanks to CorinthWestMissileBase for their diagnosis steps and solution to a circuit board problem with a Kenmore 90 gas dryer. The board is only available used, if you can find one that is the right model. The problem was three diodes that had failed. I would not have had a clue and would have ended up spending $700 for a dryer instead of $5 for the diodes and $5 for a roll of desoldering braid. And thanks to applianceblog! I have donated to the board.