Miller 250 runs want weld or gen fuse good new capacitor checked doiods .432 h what now

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.

mamicheddy

• 79 Answers
• Posted on May 08, 2009

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.

SOURCE: I HAVE AN OLDER MILLER BIG 40 RUNS BUT NO WELD OR

check the ground ,make sure is tight.look around the machine and see if theirs a switch or a nob to turn from mig to arcweld...

SOURCE: I have a Miller 225G plus. it idles up good and

Take off shroud, look at where the positive lead hooks into the transformer. You may find that the wire has melted, If you are lucky, you can loop it tnough to make a fresh connection. (also check the negitive)

SOURCE: have no weld or power output from a miller starfire 2e

did you check the breakers im talking about the ones on the unit either switch or push button you can only reset them so many times what happens is there like a set of points in an old chevy they start to get pitited bigger the pits the less power you get less amps are produced just because the reset dosent mean they are giving 100 % you can bypass one and see what happens to that drill you should be happy with the out come zaper fla