Screen says "Communication Error B3"

Please perform the troubleshooting procedure here

The procedure will not necessarily solve the problem. It was created to give more information to Technical Support, so they can resolve the issue. Please post the answers/findings for each step in the procedure by starting a new ticket on the Support page (



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    Linda Lovett

    A picture would be nice. Back of what machine. Which 3 wires? This kind of help is no help at all. Sorry, but it isn't.

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    Linda Lovett

    Well I found the black box mounted at the back of one of the rails. And 1 of 3 wires moved quite a bit when I pushed it in. Things are communicating again.

  • Avatar
    Zoltan Kasa

    Hi Linda,

    Thank you for the feedback.

    The outdated post was replaced.

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