Posted by 36 coupe on June 07, 2012 at 05:44:49 from (69.49.142.24):
In Reply to: Re: Electronics help posted by Bill in IL on June 06, 2012 at 10:11:16:
The wire feed is controlled by variable dc voltage to the motor.Welders with a circuit board are bad news.I bought my Miller 130 used.If you had a schematic you could do the repair easy.If you do get it fixed make a diagram and take some voltage measurements.Dont leave the welder plugged it when its not being used.Lightning strikes on the power line jump the on off switch and destroy parts.The pass tranistor can be checked for shorts.
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