I have a Lincoln Promig175 . I've been practicing laying beads as I'm very new to this hobby. I'm only running .35 fluxcore at the moment. When I try and weld up some thinner (18) gauge stuff, I look inside the door for the settings. It says set the machine at A 1.5. I try that setting and no matter what I do I can't get an arc to start and stay going. If I bump up the wire speed to closer to 3 I can keep an arc going. This problem seems to happen on every setting that requires a 1.5 wire speed. I've ground the metal down until its shiny thinking that might be an issue...still can't keep the arc going. What is my problem??
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