I have checked the fan wires and everything is plugged and seated correctly.
It might be a bad fan wiring or sensor. Should I just replace the hot end assembly, and maybe the extruder connection board? A user on reddit had to replaced their front housing assembling to fix this.
Also is it common for support to to ignore a trouble ticket for a over a week? Are failed or defective components covered by the warranty?
I had the same problem on a weeks-old P1P. They sent me a new nozzle fan after a couple weeks. I did not expect it to fix the issue, but it did. Not sure how a fan can fail after only a dozen hours or so of use, but that seems to have been what happened.
I’m hoping Bambu Lab support reaches out to me also. I went ahead and ordered a replacement hot end assembly, since it has the fan, heater & thermistor already installed
Since all fans are closed loop, the hotend wires which you might have not fixed using the little hook beneath the connectors cause those issues by simply touching the fan and thus lowering its speed. Ergo, the actual speed deviates from what is supposed to be like.
Hello guys, I had a clog in my stainless steel nozzle, a changed the nozzle, but i kept sending error, of nozzle temp. When i changed the complete hotend, to a hardened steel, now says fan speed abnormal, despite i changed the settings. Any further ideas what it can be?
I have just had this issue when changing over the hotend. I resolved it by re-seating the hotend fan connector whilst the printing was powered on. The fan turned on at this point, then turning the printer off and back on again.
Had the same issue and after assembling/disassembling twice I realized I had put the fan on backwards. Confirm that the fan is facing the same direction it was when uninstalled or check the Bambu Labs docs/videos to compare.
The correct placement for me had the QR code facing out and the fan label flush against the nozzle.