Troubleshooting and Test Functions 3
1100 Series WS MWS Reference Manual 87
Vessel Stuck to Needle
The vessel sticks to the needle when the needle moves up.
Possible causes
• Closing mat to rigid/thick.
• Bad X or Theta positioning and the needle sticks into the wall between two
holes.
• Defective encoder on the needle carrier assembly.
Suggested Actions
✔ Check that the closing mat is not too thick.
✔ Exchange the needle carrier assembly.
✔ Change the sample transport assembly.
✔ Change the MTP main board.
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