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No filament during print but not blocked  

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fMD
 fMD
(@fmd)
Member
No filament during print but not blocked

Hi all,

I have an MK3S that has been printing fine until recently. 

I can swap the filament and nozzles and it heats fine and filament extrudes well during the swap. But when I got to print nothing comes out. It asks me to unload and reload the filament at the beginning of the print and I do, and filament comes out again, but it still doesn't print. Using PLA at 210-220c. 

 

Any ideas? Thanks!

Posted : 09/02/2026 4:49 pm
fMD
 fMD
(@fmd)
Member
Topic starter answered:
RE: No filament during print but not blocked

 

Posted by: @fmd

Hi all,

I have an MK3S that has been printing fine until recently. 

I can swap the filament and nozzles and it heats fine and filament extrudes well during the swap. But when I got to print nothing comes out. It asks me to unload and reload the filament at the beginning of the print and I do, and filament comes out again, but it still doesn't print. Using PLA at 210-220c. 

 

Any ideas? Thanks!

I disabled the fil sensor and it's working now. But the sensor showed 1 so it was detecting filament. Is the next step to clean the sensor? Thanks!

Posted : 09/02/2026 9:30 pm
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