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Syncrowave 180 with unstable arc

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  • Syncrowave 180 with unstable arc

    I have a 180 SD that is probably around 5 years old, but has gotten VERY little use until recently. I mainly weld stainless steel exhaust and some aluminum parts. One day the high freq decided to stop working, so I continued to use the machine by scratch starting. Then it decided to latch high freq on at all times, causing me to send it in for repair. $700 later with a new main board, the machine will now weld ok, but the arc is really instable. It tends to jump around quite a bit. I've tried different tungstens, consumables, and work pieces. The high freq gaps are within factory specs. What else can I try? My repairman says everything internally checks out ok, but I am not happy with this new instability. Please help! If the main board needs to be replaced again, I need to know soon because there is only a 90 day warranty on it. Thanks! Adam

  • #2
    I would call Miller asap. Their tig department has been very helpful.

    Tom

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    • #3
      Originally posted by Adam Doerr
      I have a 180 SD that is probably around 5 years old, but has gotten VERY little use until recently. I mainly weld stainless steel exhaust and some aluminum parts. One day the high freq decided to stop working, so I continued to use the machine by scratch starting. Then it decided to latch high freq on at all times, causing me to send it in for repair. $700 later with a new main board, the machine will now weld ok, but the arc is really instable. It tends to jump around quite a bit. I've tried different tungstens, consumables, and work pieces. The high freq gaps are within factory specs. What else can I try? My repairman says everything internally checks out ok, but I am not happy with this new instability. Please help! If the main board needs to be replaced again, I need to know soon because there is only a 90 day warranty on it. Thanks! Adam
      Adam,

      I (and others) would be interested in hearing how this story turns out.

      If you would, please let us know what ends up being wrong and how much it costs to fix it.

      Thanks

      TMT

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      • #4
        I would also be interested in knowing how it turns out. I have only used two tig machines. One is a Lincoln HF unit hooked up to my old Linde arc welder. The other is a Syncro 250. The arc is stable on both of them.

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        • #5
          Originally posted by Too_Many_Tools
          Adam,

          I (and others) would be interested in hearing how this story turns out.

          If you would, please let us know what ends up being wrong and how much it costs to fix it.

          Thanks

          TMT
          Yikes, looks like it will be 700 + unknown problem. and I was thinking transformer units were supposed to be cheap to repair

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          • #6
            I THINK THEY ARE JUST SUPOSED TO BE MORE ROBUST but all will have comp. boards in them now a days
            thanks for the help
            ......or..........
            hope i helped
            sigpic
            feel free to shoot me an e-mail direct i have time to chat. [email protected]
            summer is here, plant a tree. if you don't have space or time to plant one sponsor some one else to plant one for you. a tree is an investment in our planet, help it out.
            JAMES

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            • #7
              Originally posted by own6volvos
              Yikes, looks like it will be 700 + unknown problem. and I was thinking transformer units were supposed to be cheap to repair
              Thanks for reporting back.

              The $700 estimate sounds like the main board that others have mentioned.

              The $700 is also conveniently about half the price of a new SD180.

              Coincidence? I think not.

              As it has been explained to me, Miller would rather see you and I buy new product than fix existing machines. Set the repair costs high enough and most people will buy new with a warranty.

              Any idea what you are planning on doing?

              Ebay is where a lot of "working" welders end up.

              TMT

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