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Syncrowave 300,the high frequency wont shut off.

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Posted on Jan 02, 2017

luis_david
  • 407 Answers

SOURCE: Miller Syncrowave 350LX

When using HF you not only need to ground the power cable but the machine itself, check your owners manual on page 52 (section 8-3) this practice will reduce HF interference and the shocking effect.

Here's the link to the owner manual if you don't have it.

http://www.millerwelds.com/om/o363ag_mil.pdf

If this was useful to you please vote. Thank you!

Posted on Feb 17, 2011

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Anyone know what spool gun I would use on a miller syncrowave 300(s) welding machine. I think it might need an adapter but not sure.


  • You can contact direct, but here are some links.
  • Miller Spool Guns for Aluminum and MIG Welding - MillerWelds https://www.millerwelds.com/accessories/guns-torches/spool-guns Spool Guns. Spoolmate™ 100 ... Reliable direct connect Spoolmate™ 150 spool gun provides 20 ft of cable reach and accessibility. ... Miller respects your privacy ...
  • AD/4.6 Syncrowave 210 Series - English - Miller https://www.millerwelds.com/~/media/miller electric/imported mam... · PDF file Syncrowave ® 210 Series TIG/Stick/MIG ... Miller Electric Mfg. Co. ... Spoolmate™ 100 Spool Gun #300 371 Includes 12-ft. (3.7 m) ...
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  • Re: Miller syncrowave 180sd & MM 185 w Spool Gun weldingweb.com > ... > Shop, Trade, Sell Forum
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  • Spool Gun Hookup Chart MillerWelds

    Jun 10, 2016 | Miller Welding Tools

    1 Answer

    Miller syncrowave 300 no power light and no weld power however have 480v input fan runs and can hear gas start when foot petal pushed


    The first thing to check would be to see if you have open circuit voltage at the weld output terminals when you push the pedal. Make sure the high frequency is off if you are going to to check with a multimeter. After that if you do have OCV but no high frequency to start the arc, try it in start and in continuous. When you put it in continuous it bypasses a control relay. Also check the HF points to make sure they are clean and gapped to about ten thousandths.

    Mar 05, 2014 | Hobart Handler 140 Mig Welder

    1 Answer

    Miller Syncrowave 350LX Grounded good, but is shocking people on high frequency setting


    When using HF you not only need to ground the power cable but the machine itself, check your owners manual on page 52 (section 8-3) this practice will reduce HF interference and the shocking effect.

    Here's the link to the owner manual if you don't have it.

    http://www.millerwelds.com/om/o363ag_mil.pdf

    If this was useful to you please vote. Thank you!

    Feb 17, 2011 | Miller Welding Tools

    2 Answers

    How too set up a tig welder for welding thin steel?


    DC current, electrode negative (DC Straight, DC-), High frequency for start only (really don't have to use high freq at all for steel but it helps establish the arc without scratching), 1 amp per thousandth of material thickness is a good setting to start, adjust from there for the job. 1 amp/thousandth also applies to aluminum- it has a lower melting point than steel but conducts heat much better so power to weld is very nearly the same.

    Use a sharp tungsten, don't ball it at all (as you would for AC work).

    lp

    Dec 01, 2010 | Miller SYNCROWAVE 250 DX TIG RUNNER WELDER...

    1 Answer

    Tig will work normally on aluminum for a few minutes then will cut out and the only way to start it again is to scratch start it but then it will only work for a little while


    this seems to be a duty cycle of the type of welder you may have,the other thing im thinking you need to be in continious cycle mode ,theere should be a switch allowing continious cycle also the main switch should be on ac mode for welding aluminum. the tungsten should be 1% with a green paint on the end .you mention you have to scratch to restart the welder you have might need a high frequency box of its own that also hooks to the welding machine, small amp welders have small duty cycle which means it will shut down if its getting over worked or hot good luck

    Jul 31, 2010 | Miller SYNCROWAVE 250 DX TIG RUNNER WELDER...

    1 Answer

    Syncrowave 180 sd. I was welding when it shut


    Sounds like a bad thermister on the rectifier or a bad control board.

    Aug 12, 2009 | Miller SYNCROWAVE 250 DX TIG RUNNER WELDER...

    1 Answer

    Arc starter on sync 350 interferes with equipment


    It's the high frequency, ground the case of machine, work lead connection and work table, do not chain grounds together, this will cause a ground loop.

    Jun 25, 2009 | Miller SYNCROWAVE 250 DX TIG RUNNER WELDER...

    1 Answer

    Miller sycrowave 350 high frequency is itermitent.


    Check the point gap assembly for carbon tracking through the black plastic across the points,this is a common problem,also loosen and rotate the points to insure good connection.

    Jun 11, 2009 | Miller SYNCROWAVE 250 DX TIG RUNNER WELDER...

    1 Answer

    Lx-300+ problem


    Hi again,

    Any development with your Epson LX-300+?

    Feb 10, 2008 | Epson LX-300 Matrix Printer

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