Indesit dishwasher overfilling

There are two ways that dishwashers generally fill. One is a float inside the tub, the second is a tube which fills with water, loops and goes to a pressure switch below the machine. That switch is usually about 1.5 inches in diameter, two wires and a small hose going to it. The float witch is found below the float in the motor area. With the float, sometimes they jam with too much old detergent or food goo. Clean out. Both can have the switch weld closed. Change the switch in either case. Since the unit is not filling with the power off, I'm going to guess the water solenoid is okay.