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  1. #1
    Join Date
    Feb 2015
    Posts
    3

    40w Chinese Laser will not turn on, any advice?

    So, I bought this cheap 40w Chinese Laser cutter/engraver. I knew I was up for a treat buying Chinese, however, I cannot seem to find where this one goes wrong. I checked the electrical works, it seems fine. Anyone has any suggestions?


  2. #2
    Join Date
    Aug 2014
    Posts
    111

    Re: 40w Chinese Laser will not turn on, any advice?

    There is no power at all...never seen before :-) Do you have voltage meter. Maybe power cable, or connection? Power switch. There is small glassfuse inside power near power in cables, maybe its broken. Also check power in cables connections.

  3. #3
    Join Date
    Feb 2015
    Posts
    3

    Re: 40w Chinese Laser will not turn on, any advice?

    Thanks! Somehow, it gives some power, the only thing working in this machine are now the LED strips located inside the cutting area :') I'll update later on the test results!

  4. #4
    Join Date
    Nov 2014
    Posts
    284

    Re: 40w Chinese Laser will not turn on, any advice?

    Like Miktola said there is a fuse built into the power connector on the back of the machine but the led strip shouldn't work if it was out. It's in a little plastic drawer.I would check it anyway . But the power route is from that rear connector up to the switch and from there to the rear of that power supply. The connections are marked so check for ac there so check for voltage there. Watch out for wrong voltage power supply. 110 or 220 they can be shipped wrong!

  5. #5
    Join Date
    Aug 2014
    Posts
    111

    Re: 40w Chinese Laser will not turn on, any advice?

    110V or 220v very good point :-)

  6. #6
    Join Date
    Jan 2008
    Posts
    940

    Re: 40w Chinese Laser will not turn on, any advice?

    Did you check the big red button

  7. #7
    Join Date
    Apr 2006
    Posts
    38

    Re: 40w Chinese Laser will not turn on, any advice?

    Or its a fuse or any problem with red button wires.
    check both!

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