Washer will not stop taking on water alt...

If the machine is takin on water when it is off aswell as on then its the solenoid at the back these are what the hot and cold water pipe are connected to. its will one of them not both.

IF its only takin water in on the wash then its the presurre switch.. most commonly what happends is that a small tube comes up from the bottom of the drum and goes up along the side of the drum and is attached to an electrical pressure switch. when a machine is filling it traps air in that tube and the pressure increases upon that air which force the switch to open and cut of the water

so its either the solenoid or faulty pressure switch or the little pipe is either disconnected or damaged.

hope that helps