Hello all, Not sure where I should be posting this, as my welder is not listed. I have a (what most would call a pos) Chicago electric flux mig 140t Made in Italy. I have made modifications to the feed rollers so that part works great.
This weekend I was doing some fairly heavy welding with it. Not full power, but some runs lasting 30 seconds. I have had the thermo overload click out on me a couple of times in the past, and after 10 mins or so would come back on.
I finished welding for the day, and it was working fine. The next day I rolled the machine across the garage to set up for a weld. I turned it on and (as is the case with this machine the lead is always hot) touched the wire to the metal to see I had good ground, and nothing happened. Wire feeds well when trigger is pressed. overload light is not lit but then I think the bulb is burnt out anyway. I pulled heat sensor (dont know what its called) out of machine and tested with meter. It had continuity. I applied heat to it and heard it click, and then no continuity. A few seconds later it cooled and clicked back with continuity again. So I know that part is working. I am unsure what to check at this point. Where to start.
This weekend I was doing some fairly heavy welding with it. Not full power, but some runs lasting 30 seconds. I have had the thermo overload click out on me a couple of times in the past, and after 10 mins or so would come back on.
I finished welding for the day, and it was working fine. The next day I rolled the machine across the garage to set up for a weld. I turned it on and (as is the case with this machine the lead is always hot) touched the wire to the metal to see I had good ground, and nothing happened. Wire feeds well when trigger is pressed. overload light is not lit but then I think the bulb is burnt out anyway. I pulled heat sensor (dont know what its called) out of machine and tested with meter. It had continuity. I applied heat to it and heard it click, and then no continuity. A few seconds later it cooled and clicked back with continuity again. So I know that part is working. I am unsure what to check at this point. Where to start.