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17.5KW will not make power?
A few weeks ago my generator stopped making power. After looking around I found that the voltage regulator was burned up. I have since replaced the regulator but still no power. I am looking for suggestions on where to look next.
Thanks,
David
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12 Replies
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David, do you mean you`re showing zero voltage on both 120 volt meters inside Bus ?
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Maybe one of the circuit breakers trip on the generator power box, if not call PowerTech or whoever made the generator.
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The fans that run on the radiator will not run and yes, the display in is showing “o” . From what I understand, the fans run any time the generator is running. The breaker on the side of the generator was never thrown but I did check it.
David
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There is a troubleshooting diagram in the operating manual. Follow the low/0 voltage decision tree. It will require checking stator and rotor voltages.
The question is why did the regulator burn up? Component failure or shorts in field windings, etc.
Less likely but if the generator has not been used in a long time, it could have lost residual field magnetism and now won’t self excite. This requires re-flashing the field. Just make sure you disconnect the new voltage regulator before you flash the field.
Gerald
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Why the regulator burned up is a good question. Generator gets plenty of use, 4500 hrs. I will look up the trouble shooting diagram.
Thanks,
David
1999 XLV X-6872, liberty #440 -
Just replaced voltage regulator & thermostat on my 17.5kw kubota with 1250 hrs on it. Voltage on both legs climbed to @ 140 volts before replacement . Still haven`t found 50 amp breaker that protects against high voltage and current. This could of been a disaster.
Now before Gen starts I trip breakers for refridgerator & AC units to make sure voltages are normal. (Just paranoid)
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I believe my gen has a small (8-10ish amp) fuse in the voltage regulator feed which was located inside the control box.
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I have checked both of the fuses. From what Jeff @ Power Tech and my electrician have determined, something in the power head is bad. This means removing the generator from the coach and replacing a bunch of stuff. The real problem is finding a reputable company that can handle the job close to Arkansas.
David
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Follow up on my generator problems.
I took my coach to Dallas, Tx to see PARKER POWER. These guys are top notch to say the least. They pulled my generator which is not on a slide out and replaced, power head, water pump belts and all sensors along with all filters, antifreeze. They gave it the 4000 hour service as they call it. Repairs were made in a week and the cost was $4,500 less expensive than their competitor. These folks did not care if you drove up in a Prevost or a Smart Car. They will fix your problem and charge you a fair price, not a because you own a Prevost price..
David
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So your problem was that the power head was shot? Was that the end result?
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Yes, the power head was shot at 4200 hours.
David
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Not a common failure. Make sure you have enough air flow in the generator enclosure. Maybe leave one of those remote thermometers in the enclosure and check temps when fully loaded with hot ambient temperatures.
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