ER11 - An unspecified error has occurred

This is an error that is not recognized by the Ultimaker 3. Something went wrong, but the Ultimaker 3 cannot provide a more accurate error.

These are quite rare, but can usually be resolved easily.

Reboot printer Turn off the Ultimaker 3 using the power switch at the back. Wait a few seconds before powering it on again.
Update firmware

Update the firmware to the latest version. Older firmware may contain bugs that have been resolved in later versions. Learn more here:

Update the Ultimaker 3 firmware

Note: If problems persist after taking the steps on this page, contact support or your local reseller. Ensure to include the error number and the log files of your printer.

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