Hi all, I’ve had my 40w laser for about 3 years, only used it sporadically up until about a year ago when me and my girlfriend set up little etsy shop. We replaced the original tube after it broke about 3 months ago (we hadn’t been clearing the air bubbles, lesson learned!) and the new one seemed to be working fine. The laser stopped cutting properly and we noticed a general drop in power. There seems to be a kind of arcing going on at the negative end of the tube when it’s running and we noticed a spark at the positive end with a clicking noise which seems to be coming from the power supply.
I’m not sure how to proceed so any help would be greatly appreciated.