Can you post the model number of the washer please.
Ok theres no pressure filter in there you can clean.
If you set the washer going on a wash cycle does the water just carry on filling all the way up the door?
If you turn it off does it stop filling stright away?
Ok what you need to do is pull the washer out and remove the top panel.
From there you will see the pressure sensor on the righ hand side.
Going to the bottom of this is a thin rubber hose.
Check the hose is still attached to the pressure sensor as i have seen them come off in the past.
If the hose is still attached then you need to remove the hose and inspect it for any hole or splits. As it can rub on the side and it rubs a hole into the hose which causes it to over fill. If theres a hole in there then wrap a piece or tape around the hole and see how it goes. If its fine then you need to replace the hose.
If the hose looks ok then with it pulled off the pressure sensor you need to blow hard down it to clear the pressure chamber at the bottom and then refit it and see how it goes from there.
Try the above and see how it goes from there and let me know.
Yes just try a quick cycle and see if it fills and stops and starts washing.
If it does then thats fixed it. You can then just pause the cycle and turn the dial to the spin setting and drain it out from there.
But if the hose was off then im sure that will be fine from there.
Your very welcome.
If you could remember to rate the answer that would be great.