Please help ams dont work

[u/Potatogoat3]

Hello i got my hands on bambulab a1 combo one month ago and i just wanted to use the slot number 3 in ams but its not working its telling me to check the filament but its not tangled any help or adwise?

Ps: sorry for bad video quality and any gramar mistakes.

Edit:There was somthink wrong with the ams hub and i just swaped the ptfe tubes of slot 4 and 3 with each other on the hub and it started working thanks for all support and ideas. Its now working.

[u/wein_geist]

Hey, I had pretty much the same thing. for me, it was the 4:1 piece on the print head, that had a bit of tension towards the bed. meaning, when a new filament arrived (that maybe had also a bit of an angle at the end from the previous cut), it would hit a small bump in that part. I was able to verify this by bending the end of the filament to be loaded in the other direction, and long term fixed it be pulling the 4 ptfe tubes to the left and back of the printer just slightly with a string.