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TMC driver shorted #04324 (MMU)

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Relevant for:
MMU2SMMU3
Last updated 2 months ago
This article is also available in following languages: 
ENCSPLDEESITFR

What happened?

The Original Prusa MMU3, and MMU2S are equipped with a control board containing Trinamic (TMC) drivers to manage the motion from each of the connected motors. 
With firmware 3.0.0 or higher, in case a short circuit is detected on the Idler TMC driver, the printer will show the message "Short circuit on the Idler TMC driver. Check the wiring and connectors. If the issue persists contact support".

Error name: TMC driver shorted 

Error code: #04324

How to fix it?

Do not touch, move, connect, or disconnect any cables or electronic components while the printer is on. This can result in irreversible damage! 

Access the MMU control board, and inspect it visually to spot any incorrect assembly, or damage on its surface, on the cables, and attempt reseating the cables to ensure their connection. In particular, make sure that the PD-board add-on is attached to the control board. 

If the issue is not solved with these checks, please contact our customer support. 

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