http://circuitboardmedics.com/whirlpool-duet-fdl-ccu-repair/
How to troubleshoot the F11 and FdL error codes on a Whirlpool Duet, Kenmore HE3, HE3T, HE4T front loading washing machine. The CCU commonly causes false F11, FDL, & F14 error codes but the MCU can play a part. Circuit Board Medics can eliminate these errors with upgrades to the CCU or MCU. Please visit our website at http://www.CircuitBoardMedics.com for more information or to have us repair your CCU and MCU.