I have the same issue. Usually if I were to reach in and jiggle the bowden tube while the filament was feeding forward it would successfully enter the toolhead, If I didn’t the machine would try 3 times and then quit as you described.Then I installed an extruder bracket (Bambu X1 / P1S / P1P PTFE Extruder Bracket AMS Error Fix by OurAngryBadger - MakerWorld) and that fixed the issue for about a week, then it started up again. Finally I attached a rubber band (a wimpy one) from the cable chain to the Rt Rear of the glass top. That fixed it. I don’t have a more permanent solution.
You could remove the PTFE tube and make sure the end is cut square. Then reinsert fully.
I did that when i got my printer and AMS. It fixed two feeding problems and still on the original PTFE tubes. 2500hrs and i dont use mods of any kind.
They make cutters just for these Ptfe tubes.
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Hi, I’m totally desperate! I have a p1s combo and this fault called me too… I tried everything, I downgraded, I tried to replace the ptfe tube, I took apart and reassembled the extruded one, I tried to hold the tube straight up… I tried everything! Nothing helps… it just doesn’t work. Filament fails to insert…goes backwards and forwards 3 times then shows as fault. It’s been a week that I can’t print anything… Can anyone help me???
Does printing from the rear spool work?
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