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Ultimaker 3 error code ER18


xuxueyan

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Posted (edited) · Ultimaker 3 error code ER18

The error code of ultimaker 3 is ER18, indicating the communication error with the print head. What is the cause of this? The print head has been checked and found to be correct.

Edited by xuxueyan
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    Posted · Ultimaker 3 error code ER18

    Particularly on Ultimaker 3 printers, the cable tends to slowly pull out of the print head.  So this might be the problem.  Remove the two screws towards the top rear of the print head.  Nothing will fall apart when you do this.  It's very simple.  Then the rear half of the top of the print head can be removed upwards.  Inside you will see the connector.  Try pushing it down better with some tool.  If you try to pull the connector out be very careful as you need to engage the release mechanism first and I forget how to do that but there are pictures and videos on ultimaker support pages.

     

    When putting it back together I recommend some paper as a shim so that the cover that you put back on holds the cable quite tight and prevents it from being pulled upwards while printing.

     

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