¶ Issue Description
The error message appears on the touch screen or Fluidd : mcu mcu:Unable to connect Once the underlying issue is corrected,use the FIRMWARE_RESTART command to reset the firmware, reload theconfig, and restart the host software.Error configuring printer
¶ Reasons
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Poor contact in components such as CAN bus or CAN bus adapters, extruder adapter boards, and chamber adapter boards.
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Damage to components including CAN bus or CAN bus adapters, extruder adapter boards, and chamber adapter boards.
¶ Troubleshooting Steps
¶ Tools Needed for Troubleshooting
- A 2.0 mm Allen key
¶ Step 1 Re-plug the cables.
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Turn the power switch OFF (symbol "〇") and unplug the power supply cable.
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Re-plug the three cables shown in the picture below.
¶ Step 2 Re-plug the Cables Connected to the Extruder.
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Unplug the adapter cable of the extruder.
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Release and remove the two marked screws shown in the picture below.
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Hold the extruder when removing the two marked screws shown in the picture below.
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Release and remove the two marked screws shown in the picture below.
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Remove the front cover of the extruder.
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Release the three marked screws shown in the picture below.
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Remove the pressure plate.
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Re-plug the cables shown in the picture below.
¶ Step 3 Re-plug the CANbus cables on the chamber adapter board.
¶ Step 4 Re-plug the CAN bus adapter cable connected to the motherboard.
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Remove the screws marked in the picture below.
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Unplug the cables shown in the picture below.
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Remove the cover of the motherboard.
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The motherboard is located in the marked area shown in the picture below.
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Re-plug the cables shown in the picture below.
¶ Step 5 Re-plug the CANbus connected to the back side of the chamber adapter board
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Locate the chamber adapter board in the marked area.
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Remove the two marked screws and turn the chamber adapter over.
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Re-plug the marked cable shown in the picture below.
¶ Still Have Issues?
Should you continue to encounter this error message after completing the steps, contact ELEGOO technical support team for further advice.