Question about Miller Legend Traditional Series 5000 Watt Generator Welder
Idles crazy when not welding
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Posted on Jan 02, 2017
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
There are two sources of power for the exciter circuit on this machine. The main one takes output power from the generator then goes through the voltage regulator back to the rotating field to continue the cycle of generating. The regulator varies the power back to the rotating field to keep the output steady and correct. The other circuit provides power to the rotating field while you are starting the engine. This starts the loop. It is similar to flashing the fiels on old cars that had generators.
It power from the starting cycle portion seems to be working. This tells me the rotating field, the brushes and the main winding is all good. The problem is most likely the voltage regulator or associated wiring. There are people who repair and return these as they seem to give quite a bit of trouble. If you google the part number of the circuit board, you will probably find a few of these folks happy to repair your board. I have repaired a few myself as it is almost always the same components that fail. Dust,dirt and moisture seem to build up and cause the fault.
I hope this helps. Robert
Posted on Jan 14, 2012
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