Try unplugging the dishwasher, wait a few minutes then plug the machine back in. The reset buttons are usually inside the door, behind the control panels, but I'm not certain.
Yes there is a reset button, it should be behind the electrical panel where the buttons are. If that doesn't work try un plugging the unit and that will reset them most times.
Well i do not know for sure about your model but most have a reset button on the bottom panel that has a reset adjuster or button. May go to the fridgedaire site for help.