It goes (seemingly) full blast when I start a weld, intermittently. Doesn't matter where the amp control is, whether starting amperage is engaged or not, whether or not I'm in high or low range. I've cycled every switch on the machine to no avail. It does only seem to happen when the machine has been on a while (even though the duty cycle is EXTREMELY low - as I spend a lot of time repositioning and such).

Any techies here? Where do I start troubleshooting this problem? I have the manual, the troubleshooting section doesn't address any problem of this sort, and I will print out the schematic as soon as I can in hopes of at least isolating the control board that is presumably causing this problem.

The pedal has been verified to work alright and it doesn't matter whether or not I'm in remote or panel...

Thanks in advance!