My aunt's Duet threw an F06 E02 fault code a couple days ago -- communication failure between the UI and CCU. The door wouldn't unlock. She followed the user guide suggestions to no immediate fruition but it did unlock after a while. She said the drum seems to have more "drag" then usual when rotated. It powers-on and all the selectors work but she's leery to run it now for further issues, asked me to investigate (1 hr 20 mins drive), which I'm going there on Wed. I'm hoping it's a one-off glitch and reseating the harness connectors will ward-off further occurrence. I'm asking if anyone here has had a similar experience.
Parts diagrams and service manual indicates the control panel has a board at the right side for the options buttons, which ties to a separate UI board for the rotary cycle selector, which plugs into the CCU board. The panel and UI board are NLA (for a 6yo machine!) but the CCU board is available.