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Old 07-03-2015, 03:47 PM   #1
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89 Pace

I have an onan emerald 3 6.5kw. Here's the question shore power run ac's on pulse on high max cold works great no sweat. Oh and that's 30 amp.
Try to run one ac on low with lowest cold setting trips 20 amp circuit. This makes little to no sense to me. On shore or generator the circuit should see the same load. Not the generator runs like new also new circuit in fuse panel. The only thing I changed was went to a duel 20 amp because they don't make the 30/20 split .
Solutions? Questions? Getting damn hot boondocking. Thanks ahead of time
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Old 07-03-2015, 05:38 PM   #2
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Check your voltage from the generator low voltage drives amps up fast if voltage is ok post back someone will help figure it out Mike
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Old 07-04-2015, 08:20 AM   #3
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Voltage is good
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Old 07-05-2015, 06:43 AM   #4
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????

well now we are both confused now i will think on it and get back hope someone familiar with Ac jumps in . Mike
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Old 07-12-2015, 07:25 AM   #5
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It's all about amps and load. I also have a 89 pace 38' duel duo therms. Think of it this way, when running genset in the perfect world brand new out of the box in the company's test center. The techs crank that baby to the max BOOM and that's what they stamp on the generator 6.5 kw @ 4000 was 120 volts and 33.3 amps. You will never ever get that. Your ac draws 30 amps at min cool so when you crank up the ac you also increase your load to your generator. What's in line is your fuse panel which has a 30 20 amp circuit, and the 20 pops.
On shore power you get a regulated power supply just like you home. So you get for the lack of a better word clean steady power. Generator is not clean regulated power. Another way to look at it think of a garden hose smaller hose to much pressure pop evertime. Large 2.5 fire fighting hose nice regulated flow.
If you really want to test this out, try running a ac , coffee pot and blow dryer at the same time off you generator. The do the same thing off shore.
I hope this helps sometimes I give to much information
You could always think of inverters and more batteries, a little spendy but long-term works great and saves fuel on generator .6 gal an hour adds up when boondocking.
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