I have hobart handler 175 mig. It was working fine until recently, when I started welding it welded a short time, the wire speed started to slow, and then it stopped. If I waited a few seconds it would start welding again but with the same results. I replaced the wire feed motor but had no luck. I noticed on the heat range switch that the wire feed would progressively get faster from setting 1 to 2 but to 3 it slowed a bit and on 4 it sped up. Is the temp. control switch going bad? It doesn't matter if I'm feeding wire or just running the motor without wire it still will slow down and stop!
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