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Old 06-20-2016, 03:07 PM   #11
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Originally Posted by Murphie View Post
Cdash, thanks for posting this and the clarification. Once I looked at it with my tablet it made all the difference. I didn't want to have to buy a larger generator if I was able to get by with a smaller one. There just doesn't seem to be as much info about running the larger 15k generators as there is with the 13.5k on these forums.
It was a calculated risk when I ordered the 15k on my new rig. I knew I was running the chance that it wouldn't work, but figured I'd deal with it since I already had the generator and more cooling sounded like a good idea. The hard start capacitor was my last effort before thinking a larger generator. I'm glad it worked!!

Back when I was investigating the generator purchase, I often read that people felt that 15k A/C's used less power running than most 13.5k's. So that gave me hope. My generator sure doesn't sound like the AC uses more power than my 13.5 did.

So often the advice to generator purchasers from the forums is to get 4000 watts or more. While that may be the sure thing, it requires 2 generators paired, or a really heavy single generator. There are so many differences between AC units and generators and their ability to take on startup spikes. For some of us, just enough is good enough.
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Old 06-20-2016, 05:14 PM   #12
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What brand AC unit do you have?A recent lightning strike taking out tvs and coffee makers made me nervous that the trailer could be at risk due to it being plugged in to a 120v extension cord to keep batteries charged up,i borrowed my brothers 10k watt generator and the AC wouldnt start on 50amp plug selected to 120v,i had to swap switch to 240v/120v,im guessing amperage wasn't enough on the 120v side.I have a Honda 2000 watt generator that would be nice to run AC on when I'm working on it,that little generator got us thru a week with no power during hurricane Sandy running lights and 2 fridges as long as they didn't start at the same time
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Old 06-21-2016, 09:07 AM   #13
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I believe Jayco calls it the Whisper Quiet Air Conditioning.

The sticker under the shroud says it is a "RV Products, Div of AirXCEL Inc." Model 48254C869 (which when searching would make it a model 48000)

Which seems to indicate it is a Mach 15

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Old 06-21-2016, 12:10 PM   #14
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Cdash,

TY for the info!!!

Have to ask, are you located in Milford, Mi? If so, not to far from you!
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Old 06-21-2016, 02:48 PM   #15
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Cdash,

TY for the info!!!

Have to ask, are you located in Milford, Mi? If so, not to far from you!
Yup! I am right off I-96 by the Milford exit.
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Old 06-22-2016, 08:31 AM   #16
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I seem to recall that someone mentioned that they were able to start their 15,000 AC with a 2000 watt generator but if I recall it had something to do with the altitude they were at, at the time. By the way this was some time ago. Would this mod work with a 2000 watt genny?
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Old 06-22-2016, 08:30 PM   #17
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It might work on a 2,000 watt, but I sure wouldn't want to run out and buy one, expecting that it would. I am pretty certain that the only way to have a chance at it would be to install the capacitor. There are enough 2,000 watt generators around that you should be able to borrow our rent one to try after installing the capacitor. This would let you know for sure before your purchase.

One thing I will point out: I would expect that a 2,000 would be running nearly full out to power the air. This would likely put it at a higher noise level than a bigger generator. But I understand the trade offs of weight vs noise vs multiple units. That one would be your decision for your needs.
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Old 06-22-2016, 09:35 PM   #18
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I already have the 2000 watt genny. I was just wondering if it would work but if noise is in the mix then I guess I would not attempt the mod.
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Old 06-23-2016, 05:37 AM   #19
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I guess that I should have looked at your signature first.

Personally, if I were in your shoes, I'd try it. It's rather inexpensive. I want wasn't trying to dissuade you from trying by bringing up noise, but just pointing out a consideration for purchase. (Which doesn't apply here)

We only use ours for running air when traveling during overnight stops if it is miserable out. In the last 5 years, that's been 2 nights and a couple hours during one day. Like when it's 94 degrees at 1 am and we are in a Wal-Mart or Cracker Barrel parking lot. Yeah, it's noise, but not any worse than the freeway we are usually next to.

If your inclined, I'd try it just so you have the option in the future. Or if nothing else, you can be the Guinea Pig that finds out if it will work!
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Old 06-23-2016, 11:45 AM   #20
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I tried this the other night, but it didn't work with mine. I have a 2016 Jayflight with a 13.5K Airxcel 48253C966 (Coleman Mach III) and a Champion 2000W inverter generator. I installed the supco SPP6 cap. I have read, though, that this A/C unit is harder to start than usual.
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