Issue Description

#1 Check the Firmware Version

1. Connect the machine to the software.
2. The computer should be connected to the Internet.
3. Check if the firmware is up-to-date as shown in the picture below.

#2 Check the Inner Tube of the Laser Tube

1. Turn off the machine.
2. Remove the 8 screws from the laser tube cover, and then remove the laser tube cover.
3. Push the entire X-axis components back and forth, and see if there is any significant shaking of the liquid inside the laser tube (as shown in this video).
   1. If yes, it indicates that the laser tube needs to be replaced.
   2. If not, please move on to the next step.

#3 Check the Water Pump

• If the sound is particularly sharp, remove the left side of the machine.

• If the left side of the machine doesn't make any sound after clicking 'Water Pump On', please move on to the next step.

#4 Measure the Output Voltage of the Pump Interface on the Y1 Circuit Board

1. Slightly peel off the pump wire insulating gel.
2. Make sure the multimeter pen touches the metal part of the wire
3. Check if there is voltage from the pump interface on the Y1 circuit board