Open the GE dishwasher door. Pull the bottom dish rack out of the dishwasher and place it on the counter out of your way.
Rotate the bottom spray arm into a position so that it points to the front and back of the dishwasher. This moves the arm away from the filter cover so you have unobstructed access to the mounting bolts.
Remove the two mounting bolts securing the filter cover to the bottom of the dishwasher with a 1/4-inch nut driver. There is a bolt on each end of the cover, with the heads of the bolts slightly hidden in a recessed hole.
Grab the sides of the filter cover with your fingers. Rock the filter cover toward the back of the dishwasher and back to the front of the dishwasher. This will break the seal between the bottom of the cover and the dishwasher. Lift the filter cover away from the dishwasher.