Why does dishwasher not fill with water?
Herein, how does a dishwasher fill with water?
Although dishwashers are watertight, they don't actually fill with water. Just a small basin at the bottom fills up. There, heating elements heat the water to 130 to 140 degrees Fahrenheit. Then a pump propels the water up to the water jets, where it is forced out and sprayed against the dirty dishes.
Similarly, how do I know if my dishwasher water inlet valve is bad?
Signs that point to an inlet valve problem include leaks that fill the dishwasher when not running, the dishwasher filling too slowly when in use, or the dishwasher not filling at all. Leaks that end up outside of the dishwasher also can indicate an inlet valve problem, and this must be addressed immediately.
Locate your dishwasher's water inlet valve. It should be located behind the lower kickplate panel in either the right or left corner. There will likely be two screws either on the top of the panel, or on its bottom.