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I got a miller legend it runs but got no high idle at start up or when trying to weld. does supply power to 15amp outlet which typically causes machine to high idle but it wont.produces minimal current to lead and no electric to 4 20amp outlets

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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: Miller Big 40 will not weld and has no current at the A/C outlet

open inspection door,which also the fine tuner knob is ,there's a 2x4 size circut board that snaps out with little force to remove,this is the voltage regulator board,look for 4700 ohm resisitor burnt into,tv tech can fix or order new board at $227.00 what i paid.

Posted on Feb 04, 2009

  • 1 Answer

SOURCE: Miller Big 40 will not weld and has no current at the A/C outlet

ok boy your welder have a riostathic control check contacts of your control maybe have dirt or grease

Posted on Mar 01, 2009

mamicheddy
  • 79 Answers

SOURCE: miller bobcat 225g plus welding problem

If the idle is not working, then it is either you idle solenoid attached to the carberator or your idle board is bad. If you apply 12Vdc to the idle solenoid is should move, if not then the solenoid is shot, no good. If it works then you idle board is bad. Also, check to see if you are 60Hertz by measuring at the outlet with a frequency meter. I recommend a Fluke meter. You should have 120Vac and 60HZ at the outlet. If the frequency is low then your engine speed needs to be increased. The idle solenoid could be causing all these problems.

Posted on May 08, 2009

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If the idle is not working, then it is either you idle solenoid attached to the carberator or your idle board is bad. If you apply 12Vdc to the idle solenoid is should move, if not then the solenoid is shot, no good. If it works then you idle board is bad. Also, check to see if you are 60Hertz by measuring at the outlet with a frequency meter. I recommend a Fluke meter. You should have 120Vac and 60HZ at the outlet. If the frequency is low then your engine speed needs to be increased. The idle solenoid could be causing all these problems.

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open inspection door,which also the fine tuner knob is ,there's a 2x4 size circut board that snaps out with little force to remove,this is the voltage regulator board,look for 4700 ohm resisitor burnt into,tv tech can fix or order new board at $227.00 what i paid.

Jan 23, 2009 | Welding Tools

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