yesterday I was working with my laser machine, cutting some MDF 3mm to 90% power, when he started down the ammeter needle up to 19 m, when it stopped working, now you do not check anything from the ammeter and laser not turn on when I connect a multimeter to the anode and cathode of laser ammeter shows a good value


the tube appears to have no water inside or be cracked
Test button my source of power seems to be working well


I hope you can help me, any suggestions ??