MK3S+ printing fan not working - cannot complete first layer calibration
Hi everyone, I have a MK3S+, I managed to get some (like 3 or 4) prints and then I had a bad clog. I changed ptfe tube and cleaned up the bondtechs, other than that everything looked fine. Now i'm not able to finish the first layer leveling test: the printing fan does not start and the filament does not stick to the bed but adds up on the nozzle till it clogs (actually I stop before that happens). I tried with bot pla and petg, but the "front fan" does not start at all during this (while I don't recall if it did before). So I think the problem is this, but from the menu i can get that fan to spin, so it is not an electrical problem.. I just flashed last firmware 3.9.3 and tried again, but the problem remains.
For standard pla profiles the part fan is not usually turned on until the second layer, for petg profiles its off for the first 3 layers normally.
Not sticking to the bed is down to either first layer z height adjustment or bed cleanliness. There are 1001 threads on here about how to correctly clean your print sheet and adjust the first layer correctly.
Pg1 then pg40 for Joans Pictures.
Should be made to read this thread on joining. 😁 not all 40 pages mind you