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Old 11-21-2017, 06:23 PM   #1
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Starting gen?

Do you have too unplug the coach before you start and exercise the generator?
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Old 11-21-2017, 07:08 PM   #2
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My first thought was no, you do not need to unplug. But, thinking about it some more I'm not sure. Hopefully someone else will chime in.
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Old 11-21-2017, 07:09 PM   #3
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I always do.
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Old 11-21-2017, 07:11 PM   #4
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Depends on your coach

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Old 11-21-2017, 07:20 PM   #5
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Most coaches use the generator as the default power source. That said I do not think it would make any difference except that if the generator was not the default then you would not be running the generator under load, which should be done when exercising your generator.
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Old 11-21-2017, 07:20 PM   #6
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To exercise the gen it needs to be loaded, so I would unplug to load the generator.

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Old 11-21-2017, 07:24 PM   #7
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Most instructions say to unhook power before stsrting generator. I didn't and burned mine out. Haven't replaced it yet but I do have it for when I get a chance. I used a couple sticks to hold the contacts together as an emergency measure.
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Old 11-21-2017, 07:25 PM   #8
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My dynasty has a so called smart transfer switch that SHOULD swap to the gen from shore power but switching under load is not really a great idea.

I am conservative so I unplug 50 amp then start gen it will switch with no load and works just fine. I have lost shore power had no idea and after inverting for some time the gen starts auto and we get 110 for the coach. When shore power returns the transfer switch goes back to normal.
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Old 11-21-2017, 07:33 PM   #9
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Just make sure there is no load when you start the gen .. The transfer switch will always go to gen power if available . I burnt my gen voltage regulator out once when I transferred with ac's on.. 300 hundred dollar education .
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Old 11-21-2017, 07:39 PM   #10
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My RV also has a transfer switch that automatically switches to the generator if it's running, even if plugged in to shore power.
However, in my mind, the only way to be SURE you're operating off the generator is to unplug the shore power cord. (at least that's the only way on mine, I expect that newer and higher end coaches have a display of some sort that tells where the electricity is coming from).
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Old 11-21-2017, 07:50 PM   #11
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The auto transfer switch will disconnect shore power before it connects to generator power. That will happen after the generator had run for about 30 seconds.

There is no danger in leaving the shore cord plugged in. It gets disconnected.

You are also not going to damage your generator, letting it switch with a load on it. If a load on the generator is going to damage it, it would happen turning on the load with the regular switch.

Google any RV automatic transfer switch and read how it works
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Old 11-21-2017, 09:16 PM   #12
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Thanks all
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Old 11-21-2017, 09:36 PM   #13
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Starting gen?

I just spent $770 for tuition at Master Tech RV in Elkhart. Lesson was how to remove, replace and adjust the voltage regulator on my Quiet Pact 40G and reinstall unit to motorhome. Part of that lesson was to turn off the load before turning the genny off or on. And if a problem happens check all your connections. I highly recommend Dan and his crew at Master Tech, he knows his stuff and how to get it running again, just a bit pricey in my opinion. But good education is usually expensive.

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Old 11-21-2017, 10:30 PM   #14
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I have been told that it is best to unhook shore power or at least trip the switch to turn off power before starting the generator. This is not to protect the generator but to protect the transfer switch which can be harmed when you switch back to shore power. Not sure if this is correct but it can't hurt.
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