Laser has started blowing fuses

[chriscook]

We've got the 600x400 with the 80W Reci tube, we run it from 120v mains. It's almost 2.5 years old now and still cuts as well as ever. However....Over the last few months it's been blowing fuses (the 10amp glass tube fuse in the power receptacle) rather frequently. The load, duration of use, and settings have all stayed relatively the same.

Is this a sign of something or other? Any tips on different internal measurement points and expected currents?

Thanks
Chris

[Tech_Marco]

what was laser current when it blew?
What size of fuse did you use?

Marco

[chriscook]

The fuses are 10amps, we never run the laser higher then 85%