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UM2+ keeps rebooting/power-failing


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Posted · UM2+ keeps rebooting/power-failing

After 3.5 yrs of extremely reliable operation, my UM2+ recently started to quit printing due to a power fail and reboots. This happens when

- printing from SD as well as USB

- pre-heated as well as cold

- using different models

- using different slicers (Simplify3D & Slic3r/PrusaSlicer)

- using different filament


It happens either directly after heating bed and nozzle, or a few minutes into the print. (I have a video of the failure if that helps, but didn't attach it here)


Can anyone help me? Thanks in advance

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    Posted · UM2+ keeps rebooting/power-failing

    This is pretty common.  The power bricks are running close to their limit and can age.  I'd get a new one.  There are software solutions as well.  MUCH more info here:



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