Hello guys!

Was fabricating parts in the shop today and pulled out the PP256 to weld them up. When I hit the power switch on the rear the usual buzzing of the HF points stayed on constantly. I unplugged everything and messed with setting on the front. Dial wont change amps. Its acting like the pedal is activated.... but its not. I even unplugged its completely and still getting same results. I can peek thru the front cover and see the HF points arcing...

Any help would be greatly appreciated, need to get these parts made.

Thanks