Miller SYNCROWAVE 250 DX TIG RUNNER WELDER 951117 Logo

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Posted on Nov 25, 2009
Answered by a Fixya Expert

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Miller syncrowave 250 tigrunner with gas flow

Miller syncrowave 250 tigrunner (serial # KJ ) with gas flow staying on.. but not always. already replaced the gas flow solenoid thinking this to be the problem... Any ideas?

  • 1 more comment 
  • dave732 Nov 25, 2009

    UPDATE: Other than the Argon gas flow problem, the machine works fine otherwise. We are just going thru gas at a much faster rate then normal because of this. Thanks. DM

  • Greg Vance
    Greg Vance Jun 29, 2017

    Your problem is with the post flow board.
    And depending on the yr. They no longer carry it.
    Go buy a dayton 24 volt delay timer

  • shawn sheehan
    shawn sheehan Aug 07, 2017

    Greg Vance , do you have a diagram on how to wire in the dayton timer ??

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1 Answer

Sean Wright

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  • Master 2,045 Answers
  • Posted on Feb 02, 2010
Sean Wright
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Joined: Aug 27, 2009
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Your problem is in one of two areas. The controller board inside the unit or a bad trigger on your gun.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

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The normal set up on the 250 syncrowave will allow you to control your pre and post flow of gas. If the post flow is set up to more than 2 seconds that's the problem. If it is set on zero, then you have a leaky solenoid valve. Check your owners manual for troubleshooting anf repair.
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