Maytag mah3000aww overfills

My washer overfills. The water cuts off when I shut off the machine. When I blow into the pressure hose I hear watter bubbling so I assume it is not clogged. Should I assume the pressure switch is bad and replace it or should I look for another problem?

It norally is either thr pressure switch or the tube. Make sure there are no cracks/holes in the tube as well as no water inside the tube.
Nat

How do I make sure there is no water in the tube? It is solid black not clear.