I have this washer and it is flashing FL. I no longer have the appliance book. What does this mean.

From the technical page

OVERFILL CONDITION

FL - This message occurs only if the machine control board sees an open circuit at P17. If this is the case:

* Press STOP/CANCEL to clear the display
* With the power dosconnected, check the upper harness connection to P17 on the machine control. Look for any contaminants on the contacts. There should be a cclosed circuit in there harness between P17 contacts 1 and 3
* Replace the upper harness or machine control as necessary

There is a technical booklet inside your front panel on the washer.