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Ultimaker 2 Extended rebooting while trying to start a print.

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I have come across an issue with my Ultimaker 2 Extended. Anytime a print is started, the printer begins to move the extruder head, but after about 2 second the entire machine shuts off and reboots itself. We have checked all connections and the machine seems to work fine until starting a print. Can anyone help me out with this issue?

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When it starts to print the current draw is higher on the power supply. It's probably the power supply. Well I have 2 theories:

1) You don't have the proper power supply or it's defective - it should be 221Watts. Maybe you have a um2go supply by accident?

2) The power cable is not on all the way and falls off when it moves. The connector is supposed to snap and lock the cable in (the outer sleeve slides) and sometimes the PCB under the machine is too close to the edge of the hole and you can't get the connector on without a huge effort.

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