Dishwasher made a humming sound but no water was circulating around. Searching around, I decided that it was either the inlet valve or the pump/impeller. I started with the inlet valve since it’s an easier repair. It didn’t work, no problem, now I have a spare. I then changed the pump and motor assembly. When I got the old one out, the impeller was broken along with a crack in the plastic housing. The repair took about 3 hours following along with the video. The dishwasher now works like new.