Blower fan: It will rotate briefly before printing and heating to the target temperature to dissipate heat for the effector and prevent material blockage; it will start to rotate after the first layer is printed to dissipate heat for the model so that the model can be cooled and fixed in time.
The fan cannot be repaired if it does not rotate or makes abnormal noises;
H2.5 Allen wrench
H2.0 Allen wrench
Phillips screwdriver
New blower
Note: Before starting any disassembly and assembly, make sure the machine is powered off.