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Old 07-12-2010, 09:17 PM   #1
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Workhorse Chassis Owner
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Location: Oklahoma City, OK
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GENTRAC won't produce 110v...

Can anyone please help! We're leaving in the morning and don't have dash A/C and its the old R12 stuff so can't do anything about it til we get home, so I fired up the Gen to make sure the roof top would run on it... BUT NO! I have no 110 coming out of it at all, is there anyone that can give me some suggestions about what to do? PLEASE HELP! AND HURRY!

1993 Cobra Cordoba
Gentrac gas Generator 7000 series.

I'll look at anything anywhere and test anything! I have my voltmeter with me!!


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Old 07-13-2010, 02:48 AM   #2
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I am sure you have checked the circuit breaker on the generator. If you have an automatic transfer switch, you need to check to be sure it is switching; it may not be and it might also have a circuit breaker or reset inside of it. Make sure you are getting voltage from the generator to the transfer switch. If you do not have a transfer switch but instead a receptacle that you plug the power cord into, be sure you have power at the receptacle; you could have a bad connection on the receptacle itself if the generator is putting out power.
If you find that the generator is not putting out power and the circuit breaker appears to not be tripped, you could make certain that all connections on the generator are good. If you still cannot get any power I will have to turn any assistance over to a more Generac qualified person.

Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
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Old 07-19-2010, 09:30 AM   #3
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This is what happened to me while in Alaska. Generator would start and run like a champ but output no electric to coach. Did without the generator for 45 days. Called while up there but got nowhere. Stopped at authorized generac dealer in Rapid City,SD upon returning to the lower 48. They could not figure it out and wanted to drop the generator out. I left there fast. Once home I made appointment with another generac dealer. Still no dice. They said "it's in the coach and you will have to fix it yourself". At first seemed crazy since it was running etc and putting out electric at the generator. Turns out the delay circuit in the transfer box was not allowing the transfer switch to work. It was delaying forever. I found a dip switch on the tiny little circuit board controlling the delay. It even said delay or no delay on it. Flipped the switch and electric to the coach worked. All the calls while away and the stops to "technicians" were a waste of time. The circuit board has been replaced and the delay is working properly but if it fails.....I know what to do.
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Old 08-25-2010, 10:02 PM   #4
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SO, ITS BEEN A BIT SINCE I FIRST POSTED MY PROBLEM, BUT IT WAS FINALLY 80 OUTSIDE INSTEAD OF 108 SO I DECIDED IT WAS THE DAY TO TACKLE THIS STUPID GENERATOR PROBLEM! WHAT A DAY IT TURNED OUT TO BE! STARTED AT THE AUTOMATIC SWITCH, GOT MY VOLT METER AND BEGAN TESTING WIRES HOOKED TO SHORE POWER SO I KNEW WHAT WENT WHERE (what is a wiring diagram again? oh yeah, something this coach DIDN'T come with! so i made my own on yellow sticky notes stuck to wires lol) ANYWAY, EVERYTHING SEEMED TO BE FINE IN THE BOX, SO I UNHOOKED SHORE AND CRANKED UP GENNY, RAN SMOOTH, BUT NO POWER. NOW JUST LAST FALL THIS THING WORKED GREAT DURING HARVEST IN NEBRASKA AND NOW NOTHING.... HMMMMMMMM SO I DECIDED IT WAS TIME TO "PULL" THE GENNY OUT TO GET A BETTER LOOK AND GET THE COVERS OFF TO GET THE GUTS LOOKED AT. AFTER TESTING AND TESTING AND USING THE FATHER IN LAWS GREAT ELECTRICAL KNOWLEDGE TO TEST THE 10 MILLION WIRES IN THERE WE FINALLY CAME TO A STOPING POINT AND AGREED THAT THE GENERATOR ITSELF WAS SHOT. THE BRUSHES OR SOMETHING WAS BAD INTERNAL.... ok, enough caps... well, when you say INTERNAL where is the first place you look? INSIDE! looking down "into" the generator around all the coiled wire we noticed that the magnets along the side were pretty darn rusty..... well, according to the inlaw, back in the Marines they had a problem with a diesel gen., they used wire brushes and sticks to get inside it and scrub it all down, so on a wing and a prayer with no other hope, we attached a piece of fine sand paper to a stick and started sanding the rust off the magnets. went around a few times, blew it out with an air hose, sprayed the crap out of them with WD40 (eats the rust) and sanded again, blew the air on it, and finally hooked everything back up. this was our last hope without buying a new generator so we slid it part way back in to stabalize it, connected the battery and fired it up. Ran smooth once again............ now to get the volt meter........ tested lines before the breaker..............112.4 FREAKIN VOLTS............ HOLY CRAP! THERE WAS SO MUCH RUST BUILT UP THE MAGNETS INSIDE COULDN'T DO ANYTHING!! WE HAVE POWER, WE HAVE IGNITION, AND I HAD ME A BEER!!!!!


OH YEAH, and $1.75 Coors Light in a can...........and yes, the Mountains were BLUE!

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