Make sure you are using the correct boot-up procedures as follows:

1. Plug in the power cord and make sure the plug is plugged into the bottom with no loose contact.
2. Flip the rocker switch to on. The rocker switch should lit up.
3. Turn the emergency stop switch clockwise.
4. Turn the key switch clockwise.
5. Check whether the engraver is responsive. Under normal circumstances, the engraver's LED light band lights up, the temperature shows a reading, and the exhaust fan and air pump run.

• If the rocker switch doesn't light up, check the fuse here (as shown)

• • If the fuses are OK and there is power to the outlets in the house, you need to change the 3-in-1 socket.
• If the rocker switch lights up, but the machine has no response, the emergency stop switch is faulty. Replace a new one.
• If it's a part that's not responding, not the whole machine, please refer to the articles below to find the solution.
  • Laser power LCD not lit>>
  • Temperature LCD screen/LED strip/Air pump/mainboard has no response>>