1.Foreign object has jammed the rotor
2.The rotor has failed
3.The hall sensor has failed
4.The electronic controller has failed
This from the F&P service manual for F2 fault.
So if rotor is free to turn by hand (check it and if not then find out why) and we know rotor is new, then it only leaves hall sensor or control module fault. I would swap the control module over from lower drawer and see if fault now appears on lower drawer that would confirm if it was the control board. The heater plate is around the plastic motor cover that may be why it was warm to touch.
Lincoln Appliance NZ, September 2016