¶ Issue Description
During the extruder switching process, the lifting motor drives the vertical movement of the left hotend and the switching of the flow blocker through a gearbox. Abnormal data from the hall sensor of the lifting motor can cause switching failure, which will pause the printing task until troubleshooting is completed.
Possible causes of this issue include:
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Abnormal internal communication of the TH board.
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Faulty TH board.
¶ Troubleshooting
¶ Tools, Equipment, and Materials
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H2.0 Allen key
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H1.5 Allen key
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Tweezers
¶ Solutions
Users may adjust the order of these solutions as needed.
¶ Step 1. Retry
Click the screen to retry extruder switching or restart the printing task. If the error persists, proceed to Step 2.
¶ Step 2. Power off and restart, then retry
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Power off and restart the printer.
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Go to the Nozzle & Extruder module on the screen, click on the left or right extruder, and check if the switching is normal.
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If normal, troubleshooting ends.
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If switching still fails, proceed to Step 3.
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¶ Step 3. Replace the TH board
Refer to Steps 1 to 8 in the Wiki Disassemble the H2D toolhead for TH board replacement.
After replacing the TH board, perform toolhead switching calibration.
If the above solutions do not resolve the issue, submit a ticket and upload the printer’s log files.
¶ Equivalent Codes
The following HMS codes represent the same type of issue.
| HMS Code | Description |
|---|---|
| 07FE-8000-0001-0003 | The hall signal of the Toolhead Lifting Motor is abnormal, possibly due to internal communication failure in the Toolhead module. |
| 07FF-8000-0001-0003 | The hall signal of the Toolhead Lifting Motor is abnormal, possibly due to internal communication failure in the Toolhead module. |
| 18FE-8000-0001-0003 | The hall signal of the Toolhead Lifting Motor is abnormal, possibly due to internal communication failure in the Toolhead module. |
| 18FF-8000-0001-0003 | The hall signal of the Toolhead Lifting Motor is abnormal, possibly due to internal communication failure in the Toolhead module. |
¶ End Notes
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, will answer your questions and provide assistance.
If you have any suggestions or feedback on this Wiki, please leave a message in the comment area. Thank you for your support and attention!