"F09" is a "Flood Condition" error code. The following link explains this:

http://www.fixya.com/support/r805532-f09_error_whirlpool_duet_kenmore_elite

Read through the information thoroughly and verify all the recommended steps. More than likely you have a drainage issue with the drain pump as a possible culprit.

If you need to check the drain pump for obstructions, the next link explains how:

http://www.fixya.com/support/r385844-checking_drain_pump_kenmore_elite_front

Let me know if you require additional assistance. I hope this helps you.

PS All the fault codes are normally in a tech sheet provided by the manufacturer. This tech sheet is usually placed inside the washer behind the lower panel, or affixed to one of the interior cabinet walls.