AMS Assist motor constant overload

Brand new AMS, just got it 2 days ago. Hooked it up yesterday and
Slot 1 is showing constant motor overload every two minutes if you’re lucky to get that long out of it.
My other AMS units all work fine. All set up the same way, sitting beside the printer on right hand side.
Submitted a support ticket.
But they suck at answering ppl.
Any tips or tricks?

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Check te spring of the AMS-HUB. Sometimes it gets stuck, resulting in said error.

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The rest of the slots work fine, so I figured it’s fine and moves freely.
I could swap it out with one off my other printers to test.

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Is the spool rolling freely?

If Hits any resistance you get the Same Error, cause the Hub Registers said Problem

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Yes, moves the same as other slots. Just slot one giving error…lucky to get 2 minutes of printing. Then stops…some times you get the error, sometimes you don’t. Either way still stops. Hit resume, prints for 2 minutes…stops.
Tried a fresh new roll, different colour and did the same thing.Part roll dam near empty…same. Slot 2 all the rolls worked fine…
I’m going to swap the hubs around and try it. Then move the ams unit to another printer and vice versa…if it does it on other printer then I’d be safe to presume it’s the AMS motor. I’m
going to video every test as well.N submit it…because they’re gonna ask for it. On top of the vid and pics all ready submitted.
Obviously they don’t test the equipment as this is the first use of this AMS.

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Getting late on this thread? Has it been resolved? On my side it’s a bambulab petg spool causing the problem, it’s rolled in a way that keeps it stuck

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Anyone solved this issue? I have the same problem. My AMS slot 3 prints 2 min with PET-G, then the error “motor is overloaded”. My filament is not stuck on the roll, or in the ptfe-tube. Neither is the nozzle clogged. So I can’t find out what the issue is since everything seems well. The AMS is new and has not been used that much so far…

It prints 2min in slot 3 - error - retry and it prints fine with gods extrusion 2 min - error…

OBSERVE: When I tried to use the same PET-G without AMS there was no problem to print.

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Finally it seems like I figured out the problem!

The spring in the small AMS unit mounted on the back of the printer was mal-placed and slightly bent. When I straightened up the spring to its correct position the “AMS motor overload” issue has not reappeared since…!

Now PET-G is printing fine again!

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Hello everyone. I had the same thing. Just like @AtomicimotA said here, I looked into the AMS buffer unit - which I think is what the unit is called. In my case, I simply removed it from the P1S and let it sort of dangle. I noticed LOTS of dust around the buffer unit SPOT on the P1S. Before I removed it, the AMS seemed to struggle. After I removed the buffer, the AMS returned to normal operation. I ASSUME it was binding a bit with the particulate that maybe it was rubbing against. Thx everyone!

NEWBIE here. Same issue, noting stuck, rolls just as freely as the same as other slots. Just slot #1 giving error. Few minutes of printing. Then you get the error. I check it, its free of any tangles and rolls nicely, prints for few minutes and stops. Swapped in a new roll, different color and did the same thing. Plastic roll, cardboard roll, bambu roll or aftermarkt, same issue just in slot one.

UPDATE:
Thank you for all the great suggestions. Found few small issues that collectivly cause the motor overload. AMS spool rollers were not rolling smooth, both front and rear rolled very grouchy. I pop them out, cleaned them and reseated them and the rolled 100% better. Due to the spool not rolling freely the The filament feeder funnel had a gouge worn into it from dragging the filament. Printed a great fix from 3D-Vizja called Bambu Lab AMS Feeder Button Cover Protector (found in maker world) and lastly I re-adjusted the spring that AtomicimotA was talking about. not sure if one or all cause this issue but the AMS is now printing perfectly. Thank you to ALL for your help.

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