Author Topic: Aqua Hot Leak  (Read 1024 times)

Mark Graves

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Aqua Hot Leak
« on: September 26, 2022, 03:38:02 PM »
Our Aqua Hot is leaking (almost pouring). Found and repaired a split pipe, but apparently there's a bigger issue further back.
Is there a way to bypass the AH until we get somewhere to fix it?
Cold water is better than no water.
Thanks

David T. Richelderfer

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Re: Aqua Hot Leak
« Reply #1 on: September 26, 2022, 04:06:29 PM »
Ouch!  I can think of a couple of things to try to stop the leak... other than finding the leak and repairing it, of course.  You might try closing all the hot/cold water gate valves on the water manifold in the water bay.  From your description, I doubt that will be effective.  Another more difficult idea is to remove the cold water line from the AquaHot's cold water inlet.  There might be a gate valve on the cold water inlet but my AquaHot's manual does not show one.  I do not know how to remove and plug the Pex line from the inlet point on the AquaHot.  Sorry!
2004 Beaver Marquis Sapphire

Eric Maclean

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Re: Aqua Hot Leak
« Reply #2 on: September 26, 2022, 04:15:05 PM »
Mark
What model Aquahot do you have .
Did it freeze ?

Eric
1997 Patriot Yorktown
3126-B
2009 Chevy HHR
Roadmaster falcon tow bar
Demco Air Force one tow brake.


Mark Graves

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Re: Aqua Hot Leak
« Reply #4 on: September 26, 2022, 05:00:49 PM »
Thanks for the replies.
The model AHE 100 02s

Eric Maclean

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Re: Aqua Hot Leak
« Reply #5 on: September 27, 2022, 02:17:39 PM »
Mark
There are several places that could be leaking
1) make sure it is water and not antifreeze as water is the domestic hot water loop and antifreeze would be the coach heating loop or tank itself
2) the leak could be a as simple a connection a bad pressure relief valve or tempering valve.

Once the front cover is removed you should have access to the above mentioned plumbing and valves but if the water is running out from under the front wall of the unit it is likely the domestic hot water heat transfer loop.

When I bought my coach it s Aquahot had been frozen and the domestic hot water loop had split in almost every loop so I took the unit out of the coach and removed both covers from the unit inside you'll find a round barrel which contains the antifreeze
The domestic hot water loop is simply 160 ft of soft copper 1/2 inch tubing raped around the barrel and then covered with heat transfer cement.

Here is a thread from the past that I commented on about my Aqua hot rebuild
On my unit both the domestic loop and the heating barrel and combustion chamber had holes in them.
Rebuild barrels are available but they are very pricey.

http://beaveramb.org/forum/index.php/topic,10460.msg71162.html#msg71162


Hope this helps
Eric
« Last Edit: September 27, 2022, 02:23:11 PM by Eric Maclean »
1997 Patriot Yorktown
3126-B
2009 Chevy HHR
Roadmaster falcon tow bar
Demco Air Force one tow brake.

Steve Hutchins

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Re: Aqua Hot Leak
« Reply #6 on: September 28, 2022, 02:23:48 AM »
I'm having the same kind of issue with mine leaking.  Started out as a small leak and then developing into something much larger. To resolve the problem and be able to go on our trip already scheduled, we completely removed our hydro-hot.  They had to remove the coolant lines to and from the engine and connect them together. They also had to connect the cold/hot water lines that were connected to the heater.  Not the ideal solution but a short term fix until my trip is over.  Hope this is helpful.

Steve
Steve

2002 40 Ft. Beaver Patriot
Cummins 400hp ISL

David T. Richelderfer

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Re: Aqua Hot Leak
« Reply #7 on: September 28, 2022, 12:10:15 PM »
Steve -  Your leak sounds much like a leak my AquaHot had several years ago.  Hopefully, your leak is similar to mine making it a cheap and easy repair.  The following links are what I wrote in past threads describing my leak experience, the diagnosis, the repair, and its cost.  BTW - My AquaHot is the AHE-100-02S model.

https://beaveramb.org/forum/index.php/topic,5933.msg44284.html#msg44284
https://beaveramb.org/forum/index.php/topic,10068.msg68623.html#msg68623
https://beaveramb.org/forum/index.php/topic,8549.msg58911.html#msg58911
https://beaveramb.org/forum/index.php/topic,3069.msg29012.html#msg29012
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Steve Hutchins

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Re: Aqua Hot Leak
« Reply #8 on: September 29, 2022, 12:58:08 AM »
Thanks for the links, thinking I have a little more serious issue.  I'll start a new thread when we dig a little deeper. My hydro-hot is a Model HHE-500-06M.

Thanks
Steve

2002 40 Ft. Beaver Patriot
Cummins 400hp ISL

Mark Graves

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Re: Aqua Hot Leak
« Reply #9 on: September 30, 2022, 01:38:26 AM »
Bypassed it just at the water inlet/outlet. Will rip it apart when we get to a suitable location.  Thanks for the replies and help.
Eric and David,  appreciate the links.
« Last Edit: September 30, 2022, 01:46:31 AM by Mark Graves »