Generator help?!?! - Dutchmen Owners

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Old 06-23-2019, 08:32 PM   #1
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Generator help?!?!

At wits end with generators and the AC unit in my 3605 voltage ... We stepped up to this unit a year and a half ago and we love it, however... We mostly go to camp grounds where we have full hook up service but we also "boondock" occasionally. Our unit is prewired and set up for an on board generator which we have been tossing around about adding one. But, we still have our old travel unit that we used with our previous camper. We have come to find out that our old 3000 Honda is just not big enough to do what we want in our new unit. We borrowed a friend of ours Yamaha 6300isde generator thinking we should be good to go. Well as it turns out, that generator is not big enough or can't handle the compressor of our main ac unit. I am not at the trailer currently to crawl up and check the unit to see what the required specs are but one would think a 6300 model would be able to handle everything especially since the unit they recommend for this as an on board generator is only a 5000 Onan Cummins. Can anyone shed some light as to what I am missing? Any help is greatly appreciated!
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Old 06-23-2019, 08:57 PM   #2
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Do your ac's run ok on shore power ? If so I would say it's a problem with the 6300w generator I have a 2017 3605 with the factory installed on an 5500 and it has no problems running both ac units plus fridge and other various loads
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Old 06-23-2019, 09:10 PM   #3
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Do your ac's run ok on shore power ? If so I would say it's a problem with the 6300w generator I have a 2017 3605 with the factory installed on an 5500 and it has no problems running both ac units plus fridge and other various loads


On shore power yes both ac units will run as well as anything else in rv. Just not sure what else could be wrong with the generator???
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Old 06-23-2019, 09:16 PM   #4
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On shore power yes both ac units will run as well as anything else in rv. Just not sure what else could be wrong with the generator???
Your honda should run one ac without problem try that and see what happens try running one then turn it off and try the other they both run ok on the honda then its definitely a problem with the 6300w gen
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Old 06-23-2019, 10:57 PM   #5
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soft start!
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Old 06-23-2019, 11:33 PM   #6
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Your honda should run one ac without problem try that and see what happens try running one then turn it off and try the other they both run ok on the honda then its definitely a problem with the 6300w gen

The Honda does not either, that's what led to the discussions of buying a new travel one or an on board unit
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Old 06-24-2019, 01:28 AM   #7
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I will try and get more information on the main ac unit tomorrow. Still find it hard to believe the Yamaha I borrowed won't work.

And I will say again everything works as it should on shore power.

Any other suggestions?
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Old 06-24-2019, 05:54 AM   #8
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What is happening when you try to run them on gen power ? It may be something wrong with your rig then transfer switch maybe your honda should run one of them with no problem
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Old 06-24-2019, 09:52 AM   #9
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What is happening when you try to run them on gen power ? It may be something wrong with your rig then transfer switch maybe your honda should run one of them with no problem
When I try and run the main unit, the fan starts up like normal then after 30 seconds or so the compressor tries to start and that is when the unit shuts off. The generator trips on overload at that point.

The only thing I haven't tried is the secondary unit in the main bedroom to see what happens there
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Old 06-24-2019, 11:34 AM   #10
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Have you checked to see if the power is 220 instead of 110? Rv's take TWO 120 volt legs for 50 amp and ONE 120v leg for 30 amp. what do the plugs look like on the generator? Occasionally, depending on the AC unit, when the compressor comes on, it can take a bunch of amperage (inrush) and also, you need to be cautious of the neutral since it connects back to the generator and doesn't bond inside the rv..

Your generator may not like a bunch of current being pulled off one leg and NONE on the other.
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