Hi all,
I currently have an old German made siegen mig with a wire feed issue.
There is no wire feed with the pot turned down low and as I turn the speed up I only get a slow feed at what should be the fastest.
I have checked the pot which was okay but changed it anyway, all the resistors on the board are fine, I changed one that was a bit low.
I have also changed all of the smaller diodes (with the black marks next to them), apart from the 6A ones located at the bottom of the board.
When the potentiometer is turned down to near 0ohm I get 13.7v at the motor, as soon as I turn the pot up then I get no volatage at the motor. Believe it to be a 24v motor.
Does anyone have any suggestions what to try next.
It arcs fine, and does weld,it’s just the wire feed issue.