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  1. #1
    Join Date
    Oct 2012
    Location
    Columbus, OH
    Posts
    4

    Default Syncrowave 350 LX Issue

    I have a syncrowave 350 LX that has started to have output issues.
    When turned on set for TIG with remote current and output, the foot pedal will not start the weld process. If the output is put to "on" and then back to "remote" the pedal will now control the welder. It will weld for several minutes and on/off cylces then the sme issue comes back. Switch to on and back to remote again the output works again.
    Have tried another foot pedal with no change in function.
    Has anyone seen this before?

    Welder s/n is LC230983

    Thanks in advance for any help you can offer.
    Jerry

  2. #2
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,596

    Default

    Failed contactor switch at the machine.

  3. #3
    Join Date
    Oct 2012
    Location
    Columbus, OH
    Posts
    4

    Default

    When you say failed contactor, are you refering to the main contactor mounted on the back panel of the machine?

  4. #4
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,596

    Default

    Nope its the one attached to your circuit board. We have had some luck with carefully popping the cap off and shooting the switch with the canned aerosol type wd-40 to free the switch

  5. #5
    Join Date
    Oct 2012
    Location
    Columbus, OH
    Posts
    4

    Default

    Pulled the main cicuit board out and don't see a contactor on it. Are you talking about the cube relays on that are mounted on the panel with the capacitor?
    I have attached some pics.

    Thanks
    Attached Images Attached Images

  6. #6
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,596

    Default

    No we are talking about those 4 square white buttons, they are switches

  7. #7
    Join Date
    Oct 2012
    Location
    Columbus, OH
    Posts
    4

    Default

    OK, will work on it again in the morning. Will post the results.
    Thanks for the help.

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