I have a Kenmore Elite He4T washer that keeps stopping near the end of the wash cycle with an error of F11. It seems to not occur until 2 or 3 loads have been washed. It appears to be related to a final rinse cycle I think. The washer is a couple of years old.

I can usually press the Pause/Cancel button and then press the wash start button to restart the machine (after 4 or 5 tries). Sometimes, I have to unplug the machine and go through this process before it will finish.

When the Kenmore repair guy came out a couple of months ago to do an annual check-up, he couldn't find anything wrong.

Any ideas?