O.T. old welder problems

Posted by Dana (in Lancaster) [71.232.236.112] on Tuesday, August 09, 2011 at 17:03:35 :

I've got this older Airco 300 amp beast of a welder, ac, dc, heliwelder. It has always worked fine. Today I went to weld something , turned it on and nothing. There is power to the machine, the fan runs, lights work but no juice coming out. I played with all the switches to make sure it was in all the right settings and nothing. I pulled the top cover and looked around for obvious rodent damage or coroded connections and found nothing. Anybody have a similar thing happen to their machine? I know it's old, a 1972 and I've heard the selenium rectifiers go eventually, but why won't AC work? Any ideas?

Follow Ups:

• Re: O.T. old welder problems - Franz 02:50:40 08/10/2011
  • Re: O.T. old welder problems - Dana (in Lancaster) 13:14:04 08/10/2011
    • Try "Industrial electronics.com" - ChrisCase 14:37:31 08/10/2011
      • Re: Try "Industrial electronics.com" - Dana (in Lancaster) 19:11:51 08/10/2011
• Re: O.T. old welder problems - Glen Id 00:25:50 08/10/2011
• Re: O.T. old welder problems - D Sherman 17:21:39 08/09/2011
  • Re: O.T. old welder problems - Dana (in Lancaster) 18:21:48 08/09/2011
  • Re: O.T. old welder problems - Jerry in Idaho 17:40:46 08/09/2011
    • Re: O.T. old welder problems - Dana (in Lancaster) 18:11:11 08/09/2011
    • Ouch - D Sherman 18:09:14 08/09/2011
      • Re: Ouch - Jerry in Idaho 19:51:15 08/09/2011
        • Re: Ouch - D Sherman 20:29:52 08/09/2011
          • Re: Ouch - Jerry in Idaho 00:39:36 08/10/2011
            • Re: Ouch - D Sherman 02:28:09 08/10/2011
              • Re: Ouch - Jerry in Idaho 10:54:25 08/10/2011
      • What causes one leg of 220 to go out? - Chewie 19:05:00 08/09/2011
        • Re: What causes one leg of 220 to go out? - JohnD 19:42:44 08/09/2011
          • Thanks! Ntxt - Chewie 23:38:38 08/09/2011
          • Bingo! - D Sherman 20:26:10 08/09/2011
            • Re: Bingo! - Steve G 23:49:10 08/09/2011

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