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  1. #1
    Join Date
    Jul 2014
    Posts
    13

    Default Miller Blue Star 2E - No Arc

    Good evening everyone. I'm hoping to get a little help on a problem with an old Blue Star 2E. Put on a new battery this weekend but I must not have tightened the positive cable enough. When I went to crank it, the cable sparked at the battery connection. I tightened it, cranked it, and went to strike an arc, but nothing. It just sparks a little but not enough to even stick the rod. Battery is brand new and fully charged. Idle doesn't rev up when trying to strike an arc. Any suggestions on where to start? Thanks to everyone in advance.

  2. #2
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,682

    Default

    Serial# please....

  3. #3
    Join Date
    Jul 2014
    Posts
    13

    Default Blue star 2E - no arc

    Thanks for the reply cruizer. The SN on my machine is:
    JD677915

  4. #4
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,682

    Default

    It's usually diode D8 thats the culprit. didn't mention if its a ac/dc unit, however D8 is in both, just off SR1 in the wiring diagram, its an inline diode likely under some yellow sheathing

  5. #5
    Join Date
    Jul 2014
    Posts
    13

    Default

    Thank you for the help. Very much appreciated.

    Yes, it's an AC/DC unit. D8 diode. I've never broken into one of these machines but I do have the wiring diagram. I'm guessing the diodes can be ordered online most likely and a simple solder connection????

  6. #6
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,682

    Default

    3A 1000 volt. Yes soldered in. Long time since I've seen a 2E, but its in the wiring harness. Looks like wire #7 comming off the start switch between it and the control bridge SR1

  7. #7

    Default

    Not trying to be smart But have you made sure it is in weld mode and not power. Reason I ask is because it happened to me .

  8. #8
    Join Date
    Jul 2014
    Posts
    13

    Default

    Quote Originally Posted by josh birkhead welding View Post
    Not trying to be smart But have you made sure it is in weld mode and not power. Reason I ask is because it happened to me .

    Thanks for the tip. Yes I double checked. It's definitely in "Weld" mode.

  9. #9
    Join Date
    Jul 2014
    Posts
    13

    Default Stumped everyone

    Quote Originally Posted by jrgrtx View Post
    Good evening everyone. I'm hoping to get a little help on a problem with an old Blue Star 2E. Put on a new battery this weekend but I must not have tightened the positive cable enough. When I went to crank it, the cable sparked at the battery connection. I tightened it, cranked it, and went to strike an arc, but nothing. It just sparks a little but not enough to even stick the rod. Battery is brand new and fully charged. Idle doesn't rev up when trying to strike an arc. Any suggestions on where to start? Thanks to everyone in advance.

    Well, looks like I stumped everyone. Ok. Next question. Anyone know of a good repair shop in the Dallas, Fort Worth, Waco areas?

  10. #10
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,682

    Default

    I don't see it written here, but do you have 120 auxillary power?

    Say for a grinder

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