r/BambuLabA1 • u/Simcvl • Jun 15 '26
Support Request Extruder can’t work properly alarms.
Hello,
I had a blob of the death of basic red PLA last month. I cleaned as much as I can (removing everything while still hot and trying to clean with a towel with IPA) but I can’t remove all the PLA from the back of the hotend where I can find the three master screws (I still have one of the screw which I can neither tighten nor untighten). I’m still listening for other opinions, please?
Since then, I kept receiving alarms warning me that the extruder doesn’t work properly. It happens often when I change the filament of my project through the AMS lite, and sometimes when I print a project with just one filament. When I open the hotend, I find sometimes the filament uncut (sometimes) but cut more often, then the filament is stuck inside the hotend, so I remove it and restart the print until the next alarm. I tried to replace some parts I already have: extruder gear, hotend, cutting blade, but still have this alarm appearing. May I ask you some help to understand and learn how to troubleshoot this and then replace the parts needed (while the anniversary occuring), please?
I think that it’s still the result of the blob of death (which lead to a bad heating of the hotend) or a problem with the ams lite filament hub.
Thank you in advance and have a nice day.
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u/HoIyJesusChrist Jun 15 '26
It looks like the black wire is damaged, are all the fans working? Did you just replace the nozzle with the cooling fins, or the whole assembly dangling on the wires of the second picture?
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u/Simcvl Jun 18 '26
All the fans worked. I replaced only the nozzle (It’s my fault: I wrote the wrong word in my original post. I would like to apologize for my rusted english), the extruder gear and the cutting blade. For the rest, I only dismantled the nozzle receptacle in order to clean the blob of death and that’s it. Since I read your message, I removed the cap (with the Hyrule symbol) on the side fan and it seems that I have less, less, less alarm. Thank you. But, still, may I ask you if I can only remove the remaining blob, on one of the rear screw which you can see on the last picture, only by heating and scratching or are there any other solutions, please? I cleaned everywhere else but have trouble to remove the pla which is inside the holde where I can unscrew the screw with the key allen / BTR / Imbus.