Laser quit won't come on!

Hello, I have a question. Is there a way to check if the laser driver is burnt out or if there is a problem with the control board? After a 10min burn and the laser stopped, the fan was still going,I changed the burning power from 60 to 30, and after that, the laser would not come on again. Any suggestions? Thanks

I don’t think I can help but I was wondering if you have the Sienci laser on a LongMill. It might help someone else to help you if they know the machine and laser you have for certain.