Sometimes water would keep running into machine and it would overflow.

I took off the cover behind the selector knobs and looked for the part that looked like the part I ordered. I unplugged a wire, took off the little hose, then twisted the part free. Twisting it free and twisting the new one back on was the hardest part, I even bled all over the machine from a cut I got while twisting! Then you plug the wire back in, there's only one way it will go, and put the little hose back on. I think it took less than 10 minutes.