Polar
- Engraver not turning on
- LCD of laser power supply not lit after pressing reset button
- Button turning red after clicking "Frame"
- Button turning red after clicking "Start"
- Engraver no longer emits laser beam
- The software can't control the firing of the laser but the test button can
- Air pump working fine but exhaust fan not
- Exhaust fan working fine but air pump not
- Z-axis not moving smoothly and making noise
- Both built-in exhaust fan and air pump not working
- Control relay indicator light not lit
- Control relay indicator light glowing green normally but not glowing red when engraving
- Relay glowing green normally and red during processing
- Water pump not working
- Laser won't fire with the test button pressed
- Unusual noise when the laser head returns to its origin
- Unrecognizable camera
- Pinkish or purple-ish pictures
- Distorted camera picture(s)
- Both X-axis and Y-axis remains non-responsive upon booting up
- Laser head not moving along the Y-axis after powering on (X-axis normal)
- Laser head not moving along the X-axis after powering on (Y-axis normal)
- Laser head slowly moving in the opposite direction after powering up
- X and Y axes non-responsive, button glowing green after 1 minute
- Laser head not retracting after returning to the origin (no noise)
- External axial fan not working
- Weird X/Y axis movements
- Problems with Z-axis
- Main board indicator light won't light up after booting up
- Non-responsive Z-axis after powering up