DU = Door Unlock code
Washing machine displays error code F/DU after six attempts to unlock.
-Door lock assembly failed.
-Test door lock switch
-Visually inspect wire harness connection on CCU, Door lock assembly, replace door lock assembly.
The door lock assemble on this washing machine can be replaced from either the top of the front. The door boot can be removed or the top of the washer can be removed.
Hope this helps.
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