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  1. #1
    Join Date
    Nov 2012
    Posts
    10

    Default Miller cst 250 week arc need Help

    I have a CST 250 Blue light is on. I have a very week arc it is yellow in color and won't lay down a beed. I get the same arc on all weld settings even lift start tig. I can set the output at 25 to 250 and I get the same arc. The inside is clean no metal dust or any thing. Any I
    Ideas were to start.
    Last edited by arc7700; 09-26-2013 at 07:34 PM.

  2. #2
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,905

    Default

    Many variables, need a serial#

  3. #3
    Join Date
    Nov 2012
    Posts
    10

    Default high pitch squeal

    Thanks Cruizer. The serial # is 217277 when I power the welder up it has a high pitch squeal, squeak. that does not go away. not sure if it did that before. when I strike an arc and hold the rod away from the work piece i can hear a fast clicking noise from the welder. something is switching on and off, or cutting in and out. 1380213961628.jpg1380213986115.jpg
    Last edited by arc7700; 09-28-2013 at 08:01 PM. Reason: spelling

  4. #4
    Join Date
    Nov 2012
    Posts
    10

    Angry Tear Down Time.

    Does any one Have any knowledge of a trouble shooting Guide for this machine. I am going to take the boards out to start. To inspected them for burn marks, bulged capacitors ext. There are four red l.e.d. lights that are on inside don't know if these are for trouble shooting or not. Thanks for any help.

  5. #5
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,905

    Default

    I need the letters to the serial# as well as the serial# itself


    I certainly would NOT TAKE THE BOARDS OUT!! Rather stupid idea static wise,

  6. #6
    Join Date
    Nov 2012
    Posts
    10

    Default

    The serial # is LE217277
    Stock # 907116

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