Bosch dishwasher keeps filling and overflows - Bosch 23 in. SHU33A Built-In Dishwasher

SOURCE: dishwasher fills with dirty water after finish

CHECK TIMER AND WATER OULET SOLENOID

SOURCE: BOSCH dishwasher SHU5302UC12 water will not fill

was the safty tab on the inside of the units water receiver removed?

SOURCE: Bosch SHU 4000 series dishwasher; Water keeps on filling

Follow-up: I was able to fix the problem on Bosch model # SHU 4002UC. Purchased water inlet valve (part number 425458) from Sears Parts Center. I required the Sears unit number from the original invoice as Sears computer system apparently cannot identify the Bosch model number. The valve is as described by meyerjr above; however it is located at the bottom front of the machine so could be replaced (not so easily) without removing the machine. Cost of part was $30.50 Cdn including tax.
lwou

SOURCE: My Bosch dishwasher keeps back filling from the sink or garburator.. Is there a p-trap in it?

there is a p - trap sort of, your drain hose is meant to work as one, when properly installed the hose will have a hole drilled for it to come ththat is slightly higher than the drain of the sink

SOURCE: dishwasher keeps running

Open up the door, get out the control unit. Pry open the unit's plastic case and look at the board. Burnt spot? If so, the heater circuit burnt out (happens a lot on Bosches) and the control is waiting for the water temp to rise, but of course it dosn't. Thus- long wash times.