¶ Precautions
When the machine needs to be disassembled for inspection, it must be checked with the power off.
¶ Tools
S2.5 Allen key*1
Tweezers (metal)*1
Avometer*1
¶ Solution
¶ Step 1: Preliminary inspection of the machine
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.
¶ Step 2: Check the Z-axis motor harness (the following steps require power off)
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.