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belfert's avatar
belfert
Explorer
Aug 03, 2013

Why won't Yamaha EF6300iSDE generator start A/C on 240 volt?

I have a Yamaha EF6300iSDE inverter generator. I have 50 amp service in my RV. When I plug into the 120/240 outlet none of my three rooftop A/C units will start. The generator will show 50% on the ...
wa8yxm's avatar
wa8yxm
Explorer III
Aug 05, 2013
Is there a 120/240 volt switch on the generator? IF so then here is the problem.

You have two inverters in there, each is 1/2 the 6300 watt rating of the genny, When in 120 volt they are parallel and synced so they provide 6300 watt at 120 volt However in the 240 volt they provide 1/2 of that to each leg or a total of 6300 watt at 240 volt.

The result is..... You overload at 50 percent (just one leg is overloaded).

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