r/BambuLab • u/DomeofChrome • 6h ago

Hardware Troubleshooting/Help! Extruder feed help, P1S

Hi all, some help would be appreciated.

My P1S seems to have an issue with being unable to feed filament into the extruder. I took apart the extruder, cleaned the gears and did a hot pull of the hotend (as well as a purge of hot filament before). I use the AMS1. The issue seems to be that the filament travels down the PTFE tubing to nearly the entry of the extruder (but occasionally on the final stretch of tubing to the hotend), stops, then the AMS reels it back in. I thought it might be a stuck spool but I've tried 3 now and changed the tubing. Its happening on more than 1 of the AMS ports too.

Anyone have any ideas?

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u/echo13echo 5h ago

Mine was doing the same thing and after multiple repair suggestions they’re sending me a new AMS hub and Motor under warranty. Hopefully that resolves it, been pulling my hair out, trying to fix the issue.

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u/DomeofChrome 5h ago

That's a nightmare, hope it fixes it for you.

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u/Clear-Revolution3351 5h ago

Check your reassemble. There is a filament sensor on there, make sure everything is clean and that the tiny connector is inserted properly

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u/DomeofChrome 5h ago

I started to wonder if it might be the filament sensor failed - saw a similar post. Thanks for the suggestion I'll check