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Hobart/champion 10,000 ser#lg030039h stock#500433-01-3

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Old 03-27-2016, 10:16:33 PM
Ash fork genetator Ash fork genetator is offline
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Default Hobart/champion 10,000 ser#lg030039h stock#500433-01-3

Toiling with a Hobart/champion 10,000 welder/generator. Ser#lg030039h stock #500433-01-3. No power output at welder. On the control board, on the top right, is an electronic component that looks like a penny standing on edge. It's obviously blown. I suspect this is problem. Can I replace just this doodad if I can match it up? The owner is the father of 4 hungry boys and uses this unit to help feed them. He is not made of money, which brings him to me. I have no doubt that this control board is very pricey. Any and all help would be tremendously appreciated! Thanks, a.f.g.
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Old 04-03-2016, 12:06:45 PM
dkamp dkamp is offline
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Default Re: Hobart/champion 10,000 ser#lg030039h stock#500433-01-3

Without photos, or having diagrams, parts layouts, etc, but just going by your description, it SOUNDS like the component to which you refer may be either a Metal Oxide Varistor or a ceramic disc capacitor.

The first would serve as transient suppression (MOVs are used to shunt high voltage transients) the second would be to suppress radio frequency interferance.

NEITHER would l 'cause' the machine to not work, unless they were physically shorted... but the real concern is, that if they expired, it's because they were subjected to voltage and current levels WAY in excess of their capacity.

Because of that, I would be more willing to bet that the fried component is a symptom of the problem, not the root cause.

you could try disconnecting one leg of the component and see if you get output. My bet, is that you have no field excitation, but again, nothing to back that up other than general experience with such machines.
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Old 04-03-2016, 08:16:06 PM
Ash fork genetator Ash fork genetator is offline
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Default Re: Hobart/champion 10,000 ser#lg030039h stock#500433-01-3

Thanks! I'll give it a shot.
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