My dishwasher shows that it is washing, and even counts down, but nothing is happening. Ii have replaced the door switch and the control board.
If the unit is filling with water but not washing then you would want to take a voltage reading to make sure that the pump is getting 120 vac. If the pump is getting power but not rotating then you would need to replace the pump. If the pump is not getting power at the pump and the control board is sending power then you will need to check the wiring for breaks or damage.