What does the F11 error code on my Kenmore Elite He 3t mean?

"F11" is a serial communications error. The following link explains the possible causes and how to troubleshoot:

http://www.fixya.com/support/r666194-f11_error_whirpool_duet_kenmore_elite

First, attempt to unplug the washer for AT LEAST 30 minutes in an attempt to reset the Central Control Unit (CCU). In many cases, this is all that is required in order to correct momentary glitches with the unit. If the error code reappears, follow the advice provided in the link. In the majority of the cases, I've experienced, it was the CCU that caused the problem.

If you have questions, or require additional assistance, please let me know. I hope this helps you.

Yupo, was getting F11, unplugged washer for 40 minutes, all ok now.....johngrunt1