Have a GE dryer that is stopping mid cycle and then won't restart right away, but eventually will restart.

What we've done:
New door switch, due to error code

New drum glides and felt, they were worn and making noise

New drum bearing

Exhaust not clogged, unhooked dryer

from exhaust to test and it still stops, checked length of duct work within the dryer and that is clear as well

Drum turns with no resistance

New high limit thermostat

New motor

Blower wheel free of obstructions and was cleaned when we did the motor

No other error codes

Next step is main control board replacement, any other suggestions before we do?

Thanks.