I have a Cat NRR40 that keeps blowing 15amp fuses. The fuses are on the Line Filter and there is no common time or function happening when they blow. It could be days or seconds, the fuses just blow.

I have replaced several bad coil drivers however the fuses continue to randomly blow. Any ideas? No one has been able to tell me what happens when a power conditioner fails.

I did replace several coil drivers that caused blown fuses on the PPDA board on the right side of the machine, top of the electrical mess.