Miller Electric

Welding Discussion Forums

Home » Resources » Communities » Welding Discussion Forums
Miller Welding Discussion Forums - Powered by vBulletin

Results 1 to 3 of 3
  1. #1
    Join Date
    May 2010

    Exclamation Troubleshooting Miller Spectrum 2050

    Mabey you guys can help me with a problem im having with my plasma cutter. As the title states I have a Miller Spectrum 2050 and am having some problems.

    The problem is that it will not start an arc when I pull the trigger anymore. The power light is on, the ready light is on. I have checked the air pressure, its good the only thing that i can think of is that mabey the stinger is bad. One other thing is that when i used to power it up the fan would come on for a second or two and the stinger would let pressure out which it does not do anymore.

    Any help you could give would be great.


  2. #2
    Join Date
    Mar 2008

    Default 2050

    After you have verified the pressure is where it should be with air flowing - you can force this condition by turning current to zero - check for 400 volts on each of the two large electrolytic capacitors in the top of the machine. Be careful, there are lethal voltages here. weldersales

  3. #3
    Join Date
    Mar 2010
    Ceres, California


    Check the trigger first and its connection in side the case.
    Does the air flow in gas test?
    Loosen the retaining cap on the torch 1/4 turn and see if it fires.
    It maybe best to take it in. these are not easy machines to troubleshoot.
    Glenn 300 amp stick
    Millermatic 35
    L-tec plasma

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Warning: Function split() is deprecated in /mnt/stor3-wc1-dfw1/357822/357839/ on line 79

Welding Projects

Special Offers: See the latest Miller deals and promotions.