Victor 884 won't go forward

[Manoel]

Originally Posted by KenWittlief

YIKES! how did you heat the Mosfets?

one possibility is the Victor lost its calibration. I think there is a way to restore the factory default setting, and I know it is possible to re-calibrate it (pushing the tiny recessed button while it is connected to the control system, pushing the joystick all the way forwards, then all the way back.... Its in the manual for the control system (or the Victor data sheet).

There are several Mosfets for each leg of the H bridge in the Victor. I find it hard to believe all the 'forward' mosfets could have burned out. But it is possible the controlling electronics in the Victor have failed.

Parts do fail. We use to staple all our failed parts to the wall in our Sparky area. After a few years we had quite a collection on the 'wall of death'.

Yes, we did calibrate the Victor to the factory default.
We have a lot of dead Victors (wrap it up in electrical tape to identify!), but this one has such a bizarre failure that we haven't labeled it dead... yet.