We have a 2000 Intrepid and sometimes when you turn the fan on for ac or heat it does not do anything. When this happens the power windows also dont work. Weird. Then you sometimes can turn the car off and on a few times and it will start working. Or it can sit all night and is fine the next morning until it decides to act up again. Anyone have any similar issues or a clue what it may be besides replacing the control unit.