When you need to disassemble the machine for inspection, you must turn off the power to check.
S2.5 Allen Key*1
Tweezers*1
Multimeter*1
1. Check whether the machine Z axis zeroing is normal.
2. Check whether the machine Z axis motor is stuck.
3. If none of the above conditions exist, please follow the steps below to check.
1. Use an S2.5 Allen Key to remove the screws on the back cover of the motherboard.