Error 0700 8006 Failed to Feed Filament into the Toolhead

Bambu Lab AMS Troubleshooting
1

Hi All,
A small piece of filament snapped off when loading. I was able to remove the filament spool from the AMS, but I can’t load any new filament. I get the 0700 8006 error. I suspect there is a small piece of filament stuck where the PTFE tube meets and enters the tool head. I am not sure of the best method to remove this. Does the PTFE tube just pull off? Any advice would be greatly appreciated. Thanks!

Update: I figured out how to remove the PTFE, so now I’m trying to determine how to preheat the head so I can try and clear the clogged piece. Thanks.

Update 2 - So, I figured out how to pre-heat the tool head. Now I just need an unclog tool to, hopefully, push the clogged filament through.

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Were you able to clear it?

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Not yet. I will update the forum when I do.

4

Do you have one of those fine nozzle tools for the extruder? If you do heat the print head and push it from the bottom.

5

I do! I will try that. Thanks!

Update - I tried clearing it from the bottom, but that did not solve the problem. I will report back on my other options. Thanks!

6

The best thing to do if you have any filament stuck in the tool head is to cut off a bit of filament from a spool about 10 cm long, its best to use another colour if possible, then remover the extruder with the 2 x 2.0mm screws that hold it in place. Be careful because this will get hot as you heat it manually, also it will have the fan operating which may make a noise as you touch it or it touches anything, dont worry this will not hurt, its just a noise.

go to the menu and heat up the hot end to around 230-240 degrees and once its there (wont take long) then push your 10cm piece of filament through the hot end from the top until you see it being extruded out of the bottom, be careful this will be hot. if you have used a different colour for your 10 cm piece you will see the colour change as the blockage is purged out of the hot end.

you will be able to pull your spare filament back out the way you put it in and then either 1) reduce the temp manually in the menu - down to around 27degrees, or 2) turn off the power to the printer, this is my preferred method as it stops the fan spinning as you are putting the hot end back in once it has cooled.

Hope this helps.

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Hi All,

Here is the update - With the help of this awesome community, the Wiki, and a little YouTube, I took the tool head apart, removed the extruder, and found the offending clog. I removed it and put everything back (hopefully) correctly. The problem now is I am getting the following two recurring error messages:

“The Tool Head cover is off” [which it isn’t]
“The filament cutter handle has not released. The handle or blade may be stuck.”

The cutter looks fine to me. I am not sure if I should tighten it or loosen it. Any ideas? Thanks! -Steven

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Hi! I recently bought an A1 mini and I followed this youtube tutorial to help me set it up: https://www.youtube.com/watch?v=AMeTdPd-XVc&ab_channel=3DPrintStuff.

However, my very first print with the benchy resulted in this error message:

Warning [0x1200 8006]: Failed to feed the filament into the toolhead. Please check whether the filament is stuck. After troubleshooting, click the “Retry” button.

The problem is, every time I removed the filament from the PTFE tube and put it back in, for some reason I still get this error when the AMS Lite pushes the filament back into the tube.

I’ve filed a case to Bambu, but they haven’t responded in a week. Has anyone had this error before with the A1 mini?

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Is it possible a small piece of filament broke off and is stuck in the extruder?

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Possibly. How do I check whether the extruder is clogged or not?

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Hi Jim,

I have the P1S, but it should work on the mini. Unload any filament. Open Bambu Studio and go to the “Device” tab. Check the Extruder icon on the right (see pic). If there is a white dot, then the path is clear. If there is a green dot, then the sensor is telling you something is in there. Hope this helps.

Steven
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12

You need to remove the AMS Hub from the top of the extruder. Then Take out the nozzle. You will be able to figure out where things are stuck. If the nozzle is clogged, then you need to heat it up and use one of the fine needles or carefully push another filament through while it is hot.

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I took out the nozzle and it looks fine to me. There are no noticeable clogs or bits of plastic stuck in it besides the little bit of filament that goes into the nozzle at the top.

I took off the PTFE tubes and peeked through the 4 holes with a flashlight, but it doesn’t seem like there’s any blockage in the hub.

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Hi Jim,
Have you tried opening the extruder itself? It’s a bit more involved, but I have found the culprit stuck in the yellow extruder gear.

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Hi,

Sorry for the late reply, but I think I fixed the issue (somehow). I exposed the extruder and put everything back, took out the PTFE tubes and reinserted them back in, and now the filament its properly being inserted into the extruder.

I’m not sure what the issue was, but everything seems to work now.

Thanks for the help guys!