I just want to comment on fixing an F-20 error code on a Kenmore HE 2t front load washer. My washing machine was flashing F-20 every time I got 6 minutes into the cycle. The first thing I tried after making sure of the water flow is the pressure switch. Found a new one for $6.95. Still had an F-20 error. I then discovered that the drain plug had quite a bit of fluid in it and figured it was bad. Bought a new one for $78, put it in, didn’t solve the problem. We then noticed there was a little water leaking from somewhere. We discovered that the tube running from the pressure switch to the tub was flat on one side and had a pin hole leak (this was under the hose insulation. . .go figure). Replaced it with a piece of tubing from the auto parts store for about $1.50, and this fixed it.