LaserUser.com Forum (formerly RDWorksLab)

Thanks Jeff, I will order the new power supply next week and let you know what happens. Thanks to everyone for your help.

Not so much 'Qualified' as competent when playing with electrical things is important. I have worked with a lot of Qualified people be they Engineers or Electricians over the years and some I wouldn't trust to swap a light bulb let alone design one in the case of some Engineers

Basic mains voltage is plenty to kill you and surprisingly the HV side of a current regulated supply like these smaller Lasers run is in some ways safer regards Electrocution risk. It is the Current generated across the heart that is dangerous so unregulated mains voltages is a higher risk.

Just consider that when poking around replacing power supplies and doing mains side wiring lest your smoke come out

Some HV Fun, the Black cover right at the back is my little Laser to keep it sort of on topic This is 12kV @ 30mA

https://youtu.be/VCIXY-z27EM

Success, I have installed the new power supply, problem solved. Thanks for all your help and advice.

Glad all has been resolved - I hate throwing money at problems I am unsure will fix the issue so I can completely understand the frustration.
Thank you for posting back the ultimate solution to you problem - other will be able to follow you plight and hopefully arrive at a similar success.