[JDB4950]

the unit do not fill with water

[denman]

Here is a link to your dishwasher it includes a schematic
Maytag JDB4950AWP

It does not fill with water but does it continue to run through a cycle?
Does it do this on all cycle types re: rinse etc.?
Do any of the lights come on? If not there is a good chance the door switch is not working.
Have you checked to make sure the unit is getting power?

[kayakcrzy]

Check the float switch, some times it gets stuck. The float is on the left hand side, and it might have a cover over it. If it does take the 1/4" screw out, and pull the cup up and down, and see if you hear a clicking noise, that is the switch making contact. Then close the door, and put it in a clean cycle, and see if water comes out. If you hear the click, and you turn it on, and no water comes out, replace the water valve. Tom ApplianceEducator.com