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Old 01-16-2022, 05:47 PM   #1
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AquaHot leak

Has anyone had trouble with there Aqua-hot leaking diesel fuel from behind the motor on it.
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Old 01-16-2022, 08:01 PM   #2
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Nope, but a clogged nozzle may cause sputter/dribble. The lines connect at the bottom, so short of a catastrophic failure in the lines internally, not likely to leak from that.
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Old 01-17-2022, 05:55 AM   #3
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Nope, but a clogged nozzle may cause sputter/dribble. The lines connect at the bottom, so short of a catastrophic failure in the lines internally, not likely to leak from that.
Thanks. Someone on you tube said the fuel pump is in that housing and that might be the problem.
Thanks again
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Old 01-17-2022, 07:39 AM   #4
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You should check the fuel pump shaft seal if you're leaking raw fuel. Also, while you're in there check the easy things as it could be something simple like a loose fuel line fitting.
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Old 01-18-2022, 05:55 AM   #5
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Thanks I’ll start there.
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Old 01-18-2022, 10:51 AM   #6
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Thanks Iíll start there.


FYI perhaps visit Mikes You-Tube Page there is a wealth of information there to say the least and he is very talented man.

such as this



and much more.


Happy Trails
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Old 01-19-2022, 05:35 AM   #7
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Thanks,I watched his video last night,wish he was close to where I live.
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Old 01-19-2022, 05:19 PM   #8
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I got in the belly today on my 01 Monaco dynasty to check the Bunner on the aqua-hot system had my gril friend turn it on the diesel fuel leak is coming out the front of the unit where it bolts on. Would this be the nozzle or the fuel pump causing the leak.
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Old 01-20-2022, 06:35 AM   #9
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Hard to tell. You'll have to remove the covers so you can get a better visual of the source of the leak.
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Old 01-21-2022, 07:00 AM   #10
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It was coming right out of the front of the motor housing where it bolts on. Where would I get the seal. I watched both your videos and real liked them I have it out on my work bench, the combustion tube was a mess all sueted up and wet with fuel on the out side. Any help would be appreciated. It’s my first time do tackle some like this.
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Old 01-21-2022, 07:04 AM   #11
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I really don’t think it’s been serviced in years. The guy I bought it from wasn’t real forth right on much I asked about. Can’t get the HWH Air Leveling system to work either. It’s only got 28,467 miles on it.
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Old 01-21-2022, 07:37 AM   #12
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There are a few sources around for parts. I'm not sure what the seal is you'd be looking for.

https://hydronicheatingwarehouse.com...aqua-hot-parts

https://www.parts.rvhydronicheaterre...t-Parts_c2.htm

https://shop.findmyrvparts.com/RV-he...tems-s/140.htm

https://heatmyrv.com/
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Old 01-21-2022, 08:01 AM   #13
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The fuel pump seal. And I’m trying to. Figure out why the center c circulating pump is running when nothing else is. I may have bought a albatross
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Old 01-21-2022, 08:35 AM   #14
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I scanned thru the links above, didn't see any parts for a fuel pump.
I saw a pump at just one of the links, Veruniks.
It was not cheap,$420, hope you can reseal yours.

https://shop.findmyrvparts.com/monac...a-p/190404.htm

Ray&Marilyn
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