Troubleshoot Laserbox Error Code Qx03 0

Article author
xTool Customer Service
  • Updated

Issue Description

Error Code 'Qx03 0': Water Tank Level Too Low

The Qx03 0 error code indicates that the water level of the water tank is too low. If you see a pop-up notification with this error code, please refer to the steps below to troubleshoot the issue.

#1 Check the Firmware Version

Connect the machine to the software.
The computer should be connected to the Internet.
Check if the firmware is up-to-date as shown in the picture below.
If the issue persists after updating, please move on to the next step.

#2 Check the Water Level Sensor

Turn off the machine.
Refer to this video to remove the left side of the machine
Check if the water level sensor falls off as shown in the left picture below.
Unplug and replug the water level sensor wires.
If the issue persists, please move on to the next step.

#3 Check the Water Tank

Under normal circumstances, the water level should be around the 5th scale as marked in the picture below.
If the water level is lower than the scale, please open the cover and add water until it reaches the position.
If it meets the requirements, please move on to the next step.
#4 Check the Water Level Sensor
If the water level meets the requirement, the red indicator on the sensor should stay on as shown in the right picture below.
If the indicator doesn't light up at all, increase the sensitivity by turning the knob clockwise as shown in the left photo below.
If the indicator still won't light up after the sensitivity is increased, replace the sensor and the Y1 circuit board one by one and try again.

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