
Originally Posted by
performance
Check your work clamp connections. Are you trying to ground through the table or something or do you have the ground directly on the metal you are welding as well as ground down to the shiny?
Several things are possible. One thing comes to mind is that you are trying to possibly start too far off. Some welders allow you to initiate a spark further away than others. Put it about a penny's thickness off the metal and see if you can get consistent starts. Also is it creating the HF everytime but no arc initiation or is it not creating the HF spark?
There's no hidden menu settings. The 325EXT does not have as low of start on AC IIRC and the panels is the same as the 2014 255EXT but has not been updated with the 2015 version. The 2015 version of the 255EXT has the select button just below the easy start up menu and has the spot weld timer added along with a purge button.