F02 is a motor related fault so it can be either the motor itself or the control board.
If you have a multi meter you can test the motor and see if its faulty.
Remove the wiring block and on the wiring block you will see 2 red wires and the reset will be black (this depends on the model unless its an older model)
You need to test the motor were the 2 red wires go which should be the top 2 tags.
Test between them and you should get contonuity.
Then do the next 2 and that will give a reading. Then test the one next to that and that should read with the other 2 wires you tested.
Then test the last 2 and that should give a reading.
So basically if the number the tags going down with 1 at the top its as below.
You should get contonuity between 1 and 2,
Then the same between 3,4 and 5,
Then the same between 6 and 7.
If they all test ok then the motor is fine and the fault is with the control board but if any of the reads fail then the motor is the fault.
Try that and see what you find and let me know.