The installation was performed by a professional contractor about a year and a half ago, so I believe the wiring and connections were all installed properly and when I was taking everything apart it all seemed as it should be and properly grounded. That said, I will check the voltage at the outlet. The control board seems more likely given that a reset (breaker shut-off) solved the problem a few months ago but doesn’t this time.
I replaced control board EBR3657, pictured here:
Here is a picture of the other control board:
I am not sure which one control the dryer or if both do.