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Old 08-19-2013, 06:14 PM   #1
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Lost power on a onan 7000

Generator starts and runs good but all of a sudden just no power to coach i belive i checked all fuses but noticed two spare fuses on front of gen.just not sure were they go any help would be great.
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Old 08-19-2013, 06:39 PM   #2
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This thread should help you.
Are there two switch's on face of GEN and are they on?
I guess they call them line circuit breakers.
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Old 08-19-2013, 08:44 PM   #3
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Yes both breakers are on . The fuses that are spares are the round glass ones
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Old 08-20-2013, 03:08 PM   #4
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If the generator breakers are tripped and you are getting no power to the coach, your problem is with the transfer switch. Does shore power work? If it doesn't then it is the transfer switch. Give it a couple of whacks with your fist and see if it switches.

If it is still not switching, turn off the generator, and pull the shore power cord. Remove the cover and tighten all of the cable clamps. Put the lid back on and try it again. If it still doesn't switch, call your dealer as your transfer switch has failed.
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Old 08-20-2013, 08:45 PM   #5
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Check Oil Level

Check Oil level, will not run if oil level drops.
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Old 08-20-2013, 08:54 PM   #6
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Quote:
Originally Posted by WBBB1 View Post
Check Oil level, will not run if oil level drops.
OP states the power just quits, not that the engine quits. so it can't be the oil level sensor.
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Old 08-21-2013, 06:20 PM   #7
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Cool

Thank you for your answer but not sure you stated to turn off gen. and pull shore power i thought you are not supposed to have both on.
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Old 08-21-2013, 06:26 PM   #8
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Some rigs make it impossible for both to be providing power by having you manually move the power cord inside the rig. Some have an auto transfer switch. With the auto ones you should disconnect the shore power before starting the gen set, otherwise you could burn the contacts on the solenoid.
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Old 08-22-2013, 07:46 AM   #9
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Quote:
Originally Posted by Randy Stelck View Post
Thank you for your answer but not sure you stated to turn off gen. and pull shore power i thought you are not supposed to have both on.
Randy,

What kind of troubleshooting have you done? Do you get power to the coach with shore power? Generator?

You should not have both the generator and the shore power plugged in at the same time but the transfer switch will give priority to generator power over shore power if you do.

If you are going to take a look in the transfer switch, remove all sources of 110V power - turn off the generator, make sure the cord is unplugged. Just trying to keep you safe...

If you get power with cord and you here the transfer switch connect (usually a big thump), then it might not be the transfer switch.

If the generator breakers are not tripped and you get no power to the coach, it could be (1) a bad connection in the transfer switch; (2) something wrong with the generator output. If you feel comfortable using a volt/ohm meter you could check that, if not, take it to a Cummins dealer for service.
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Old 08-22-2013, 02:42 PM   #10
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Thank you all for your responses it just started working not sure if i did something to trip it but i checked the gfi in the bathroom and i think it was ok but i reset it and all works iam still confused but hey its working
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Old 08-23-2013, 07:26 AM   #11
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Having a GFCI issue and stating that your generator is producing no power is pretty confusing to those of us trying to help you. If only some circuits, like your bathroom or kitchen didn't have power, but your air conditioners were still working is a whole lot different than "no power" with the generator running.

BTW, a really good source of information for your coach can be found at tiffinrvnetwork.com.
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