250 ex arc wont start

[johnson697]

i have a 250 ex and when i recieved it the points were bent ..talked to mike and he talked me thourgh resetting them..now i am haveing a problem with starting a arc,i have to scratch start the arc and after i weld a bead it will not restart.

[Rodsmachineshop]

what do you have your preflow set at and what did you set the points at and are you use straight argon or argon and helium mix .

[performance]

Johnson,
Contact Mike again. There may be a wire cut or damaged when you replaced the cabinet. There is also another possibility.

[johnson697]

mike had me set the points at .060 and i am using straight argon no preflow..and i did not replace the cabinet so i know i did not cut a wire

[johnson697]

i am also using lanthanated tungsten and thoriated ,i have both .also another problem i am having is when i finish a weld the arc stays on for a about 3 or 4 seconds after i let up on pedal .when i did reset points to .060 it starts better but i still have to scratch or touch start.

[johnson697]

on a positive note when the arc does start...it welds perfect welds,very happy with the way it does weld when the arc starts.

[performance]

The pedal is tied to the downslope. Again, contact Mike and he will go over stuff to authorize a return if its warranted.

[johnson697]

have tried to get ahold of him all week...what else should i do ?i am losing money on this machine right now.