I have a MM250 analog machine that I bought new in 1995 and have used it all these years without any problems till now. I was welding up a project and lost the arc, I pull the trigger and have wire feed just no magic. I got my volt meter out and checked for voltage on the posts by the feed assembly and didn't get any voltage. I'd say this is a relatively "low miles" machine because I've probably only ran 3-4 30# spools through it since new. I odd thing and it's done it since new is after about 20 minutes of the machine being on I get a buzz noise, it's done it since new and I just put up with it for all these years.
I have years of auto electric experience so with maybe a little help and some guidance I'd sure like to try and diagnose this machine. I did a search on this site and didn't find anything that fit my problem, I did find a thread about "burn back" which I have noticed I have, I have been dealing with the burn back and if there is a fix for that I'll do that after the machine is fixed.
I have years of auto electric experience so with maybe a little help and some guidance I'd sure like to try and diagnose this machine. I did a search on this site and didn't find anything that fit my problem, I did find a thread about "burn back" which I have noticed I have, I have been dealing with the burn back and if there is a fix for that I'll do that after the machine is fixed.
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