When the machine needs to be disassembled for inspection, it must be checked with the power off.
S2.5 Allen key*1
Tweezers (metal)*1
Avometer*1
1. Check if the Z axis of the machine is returning to zero normally.
2. Check if the Z axis motor of the machine is stuck.
3. If none of the above conditions exist, please follow the steps below to troubleshoot.
1. Please check whether the Z-axis motor harness is connected incorrectly or loose.
2. Use an S2.5 Allen key to remove the screws on the motherboard back cover.