: Check repositories like denizkoekden's GitHub0;603; 0;9f3; or Kaot93's Printables page 0;a71;.
which, in the stock firmware, only turned on when motors were active rather than based on hotend temperature. sunlu t3 firmware
Sunlu T3 firmware – where to find it and how to update? : Check repositories like denizkoekden's GitHub0
: Stock firmware often has the extruder cooling fan mismapped, meaning it only runs when motors are active. Updated configurations ensure it runs whenever the hotend is hot, preventing heat creep. or Kaot93's Printables page 0