Miller LE AEAD

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New to the forum. This summer I took an intro to welding class as CE at a local college and am now hooked. I have purchased a Miller Thunderbolt XL as well as a Tweco Mig machine. On Craigslist today a seller has a AEAD that is at a really low price. His description says that it starts and produces electricity but will not weld. He says he thinks that it is a diode. Anyone know these welders and is a diode going out common ? Also could it be something a lot more serious that would make this a scrap unit ? The little Thunderbolt works fine but I need to be able to do work/play in the back yard. Thanks All
Reply:Several things come immediately to mind as possible. It could be as simple as the weld/power switch being bad or a bad connection. There's actually a good number of things that could cause this all the way up to burnt out windings. No way of really knowing without checking it out.Millermatic 252XMT 304'sDynasty 280DXHypertherm PowerMax 1250Miller Trailblazer 302 EFIOptima PulserXR feeder and XR Edge gun and more athttp://members.dslextreme.com/users/waynecook/index.htm
Reply:These older miller gas portable welders were noisy. I have one. Your thunderbolt with longer cables on it might be less headache for you and will be much quieter. The gas engine drive machines produce a much smoother weld arc though.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:Originally Posted by snoeproeThese older miller gas portable welders were noisy. I have one. Your thunderbolt with longer cables on it might be less headache for you and will be much quieter. The gas engine drive machines produce a much smoother weld arc though.
Reply:Originally Posted by snoeproeThese older miller gas portable welders were noisy. I have one. Your thunderbolt with longer cables on it might be less headache for you and will be much quieter. The gas engine drive machines produce a much smoother weld arc though.
Reply:100 ft will not be a problem as long as they are large enough.  An extension cord would work as well.   I came across some #4 welding cable many yrs ago, so made 50' extensions for my T-bolt.  I doubled the cable as I had lots.   And just recently, I came into an extension cord with #4 conductors.  Only 36 feet long, but the price was right!Tim