Duet 2 Wifi won't on.

  • Hi,

    My 3 months old latest ver. duet 2 wifi worked perfectly since last night. Suddenly, the board went off. I switch off and on the power supply. The board is not turning on.
    Then I connect the board and PC with usb cable. The board works again. But as soon as I unplug the usb, the board goes off.

    With power supply connected only. Only the green VIN led is on. I can only detect always on fans have a reading of 24V. Nowhere else has voltage reading.

    I tried to connect the on-board micro usb with a 5v power source (Not a PC). The board works.

    What could be the problem with my board? And any suggestion for how to fix it?

    Thank you.

  • @markxu said in Duet 2 Wifi won't on.:

    What could be the problem with my board?

    If it works from USB it could be the black square chip labeled U3 has failed, take a close look at it, About 2cm in from the fuse between Vin and Bed output.

    and in general https://duet3d.dozuki.com/Wiki/What_to_do_if_your_Duet_won't_respond

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