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Old 06-05-2014, 04:24 PM   #1
hoffbrew
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Generator Run Time

I am taking my rig to a all day water polo tourney and it is going to be 108 this weekend!! How long should gen be ran before giving it a rest? I thought about bringing my Honda EU3000 for breaks? I dont use the Honda at all any more and thought it would be good to run. Now I do start it every couple of weeks and let run for about 2 beers worth and sometimes plug in a air compressor to put a load on it. BUT anywho.. what do you think run time should be or dont worry about it?
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Old 06-05-2014, 06:59 PM   #2
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We ran ours quite a bit while dry camping at the dunes over Memorial day weekend. Seems like it would only run a couple hours before it shut itself off. Overheating ? meh, that's what warranty's are for. We got 25 hours on it in 5 days. Broke it in good !!
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Old 06-05-2014, 11:21 PM   #3
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Ran my yamaha yg2800i for over 50 hours non stop a couple years back, running the AC the whole time. Didn't give it any break and no problems. Let it run, that honda won't care a bit.
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Old 06-06-2014, 06:28 AM   #4
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It depends upon the load you put on it. The engine should be good for continuous running. The generator portion however, may need a cool-down period if you have it at near full-load. The closer to full-load, the sooner it will need to cool down a bit. Typical use usually doesn't run into this problem though. May want to check the FAQ site of the generator to see what they say.
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Old 06-06-2014, 07:48 AM   #5
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I have looked and saw nothing. When I had the Raptor at the desert I would run for 2-3 hours most at one time but it looks like I would be running the on board gen for probably 8 hours tops, thats why I thought about bringing the Honda and running for a few hours to rest the on board gen. I will look on Onan's site again.
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Old 06-06-2014, 07:59 AM   #6
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I was just reading some testimonies on Onan's site and some people are running there gens for 20 hrs a day!!! Some of those are the 7500 series but it must be all good. I will change the oil on Sunday and have it ready for our next excursion
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Old 06-06-2014, 10:30 AM   #7
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What model? Air cooled or liquid?
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Old 06-06-2014, 10:44 AM   #8
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The stock Onan 5500 that come with these Fuzions, air cooled
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Old 06-07-2014, 02:45 AM   #9
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I've run my ONAN 4400 air cooled gen for 8-10hrs non stop in the Arizona summer heat and I ran it for 2 days non stop in the winter while hunting in the mountains, never any issues. ONAN makes a great generator in my opinion.
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Old 06-07-2014, 05:18 AM   #10
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When I had a toy hauler, I ran my gas powered Onan 5500 for 5 days straight... It's designed for it.
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Old 06-07-2014, 05:36 AM   #11
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Perfect!! Thanks for your help folks. See you back here around beer:30
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Old 05-29-2015, 08:44 PM   #12
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Quote:
Originally Posted by FusionFZ371 View Post
We ran ours quite a bit while dry camping at the dunes over Memorial day weekend. Seems like it would only run a couple hours before it shut itself off. Overheating ? meh, that's what warranty's are for. We got 25 hours on it in 5 days. Broke it in good !!
I know this is an old thread.
But this would be a huge concern for me. Thor (Keystone) had a whole batch of Class-As that had overheating 5500 watt Onans. They'd shut down in high heat and that means no AC.

These generators should operate in any condition up to max load... Indefinitely.
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Old 05-31-2015, 05:49 AM   #13
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I've never had an issue running mine non stop for a couple of days here in the Texas heat but I've also only done that a couple of times. One question I did have was whether you're supposed to leave the generator access door open or not to help it cool. I initially had it closed then left it open.
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Old 06-01-2015, 09:23 AM   #14
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We have to leave ours running none stop for this BIG boy when we boonedock ,He doesnt like any temp over 70 degress
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Old 06-01-2015, 11:32 AM   #15
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We have to leave ours running none stop for this BIG boy when we boonedock ,He doesnt like any temp over 70 degress
What does it do? Shutting down when ambient is 70 is clearly non-deal.

Here's what I know:
In a number of Thor gasser motorcoaches the 5500 Onan was having shutdown issues during hot conditions. As many of you know, you can't drive a gas motorhome in 100 degree heat without running the house AC.

The root cause was that the fuel was vaporizing in the lines before getting to the generator.

I had the exact same thing happening with a Holiday Rambler - same generator... And our Keystone has the "Onan 5500 EVAP" - which I've read is the same as the "5500 Marquis Gold" in the Rambler.

I know that Thor was scrambling to address the issues - I don't know if they came up with a final solution.

On my Rambler, I replace the fuel pump, insulated it, and insulated the fuel line where it comes into the compartment. I'd expect it to be less of an issue on a 5th wheel, as you're not typically running the genset while cooking over 120 degree asphalt... But a shut-down at 70 degrees would concern me.
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Old 06-01-2015, 01:10 PM   #16
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We have to leave ours running none stop for this BIG boy when we boonedock ,He doesnt like any temp over 70 degress
cb1000rider -
I think what crash is saying is that his dog doesn't like it when the temperature is over 70 degrees. I don't think he said that his generator shuts down when it reaches 70 - only Rebel, the Bull Dog.
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Old 06-02-2015, 10:30 AM   #17
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That makes a lot more sense!
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Old 06-02-2015, 12:15 PM   #18
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Yep Rebel is what I was talking about the poor guy cannt stand to much over 70 degrees ,The generator works fine
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Old 06-03-2015, 02:49 PM   #19
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Quote:
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We have to leave ours running none stop for this BIG boy when we boonedock ,He doesnt like any temp over 70 degress
I am with you!!!
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Old 06-03-2015, 03:23 PM   #20
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I've run generators on dirty, dusty crap rain and scorching hot heat 24 hrs a day for 6 to 8 weeks straight on job sites with no problems. The only time they were shut down was once a week for oil and filter changes.
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