Did you look at post #17
Also check the Course and Process dials the rheostat (potentiometer) if they are not making contact the machine will act the way you are describing. All Miller (Lincoln) welders with analog adjusters are bad about this. Had it happen to the Bobcat at the shop and a couple of the MIG welders took off the cover expecting something was burnt only to find the range adjuster open.
I also left you a link for the manual in post #16 you don't have to download it to view. It has the schematics and you can print only the parts you need.
AWS Weld Inspector
Last edited by bryanm; 07-09-2010 at 09:49 AM.