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mm 350P WITH HELP CODE 3

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  • mm 350P WITH HELP CODE 3

    changed gun out , still has help code 3 when powered up

  • #2
    This is what the manual has to say..

    Help 3
    Indicates gun trigger was pulled and held
    during power up. Release gun trigger and
    clear fault condition. Also, this display can
    Indicate no open circuit voltage detected
    when gun trigger is pulled and no arc
    detected within 3 seconds. Turn off primary
    input power and contact a Factory
    Authorized Service Agent


    http://www.millerwelds.com/om/o1327ah_mil.pdf

    Page 49

    Have found over the years that the help codes may indicate a condition or conditions totally different than what the manual says... many times something simple like a reset to factory defaults may clear the errors..

    sometimes conflicting program commands will confuse it and throw out odd error codes...

    Cruzer or one of the Miller factory Techs probably have some ideas..
    Last edited by H80N; 09-04-2013, 08:17 AM.

    Comment


    • #3
      Try disconnecting the gun trigger lead from the machine and turn on the power. If the problem remains you will need to take it into a service station. If the problem goes away then you have had some bad guns.

      Let us know how it turns out!

      Thanks,
      Miller Welding Forum Administrator

      Comment


      • #4
        Originally posted by STEELREELIN View Post
        changed gun out , still has help code 3 when powered up

        disconnect your spoolgun as well, if its there, I find that when powering up (no pressing the trigger) that 99.9% of the time its a stuck or shorted trigger.

        If you hit the trigger and that error turns on, then yes you have a internal problem.

        Comment


        • #5
          thanks, blowed out machine, wiped off some metal filings on the top board and code 3 went away. welded with machine everything seems good.

          Comment


          • #6
            Originally posted by STEELREELIN View Post
            thanks, blowed out machine, wiped off some metal filings on the top board and code 3 went away. welded with machine everything seems good.
            Glad you got it sorted out...

            Makes a good case for Vac & Blowing them out at least once a year...

            the MM350P is just such a great MIG machine...
            Last edited by H80N; 09-04-2013, 08:33 PM.

            Comment


            • #7
              I'm glad you got it sorted out as well. buttt there isn't any top board (Horizontal), and it would be near impossible to get a filling into any of the boards inside the unit, unless it was running without the covers installed. So what really was the problem.

              Comment


              • #8
                Thanks, the horizontal control board was really covered with dust, and pushed connectors up tight,had tried many times before that, to get it to come on, we fabricate and do alot of grinding.

                Comment


                • #9
                  Originally posted by STEELREELIN View Post
                  Thanks, the horizontal control board was really covered with dust, and pushed connectors up tight,had tried many times before that, to get it to come on, we fabricate and do alot of grinding.
                  Again, no horizontal boards in these. They are all vertical. Dust doesn't affect them anyways. So a coinsidence maybe

                  Comment


                  • #10
                    [QUOTE=cruizer;311440]Again, no horizontal boards in these. They are all vertical. Dust doesn't affect them anyways. So a coinsidence maybe[/QUO

                    control board is rectangle and runs horizontal right behind the control knobs, metal filing can enter these machines really easy this machine was about 7 years old , yes, there was alot of metal dust on the horizontal soldered board.

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