My trusty Thermal Dynamics Cutmaster 38 cut out this afternoon. It was cutting holes in 8mm plate at full power for 20sec every 3 minutes for about 2 hours on my CNC. Its been very reliable but i’ve not used it so rigourously before and on such thick gauge plate. I thought it might need a rest or cool down or it had tripped a fuse at the board but neither were the case alas.

Does anyone know if there an internal fuse or reset button before I check the circuit board for damage.

Thanks