Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Water Heater Leak

  1. #1
    Join Date
    Jul 2009
    Location
    Aberdeen
    Posts
    23

    Default Water Heater Leak

    Hello All:

    I have a '06 Marathon XL coach. The water heater has developed a small leak. Looking at the water heater it appears that there are two Atwood heaters stacked one on the other. Would that be that there is a separate water heater for gas and one for electric? Or is it all one unit?

    I will need to have the heater replaced but before I find someone locally to do that I want to be "semi" informed.

    Thanks in advance.
    John Emmett NMHz
    Aberdeen, SD
    2006 Marathon

  2. #2
    Join Date
    May 2012
    Location
    Beverly Hills
    Posts
    3,983

    Default

    Those heaters are BOTH 120VAC powered. In the world of Marathon, one heats and then the other. Country Coach owners, yours both heat at the same time.

    That specific heater is no longer made. The new ones has all of the fittings on the front. There is a replacement that some have successfully used. It's one of the Kuuma models. With the dimensions of yours it should easy to figure out which one. Defender stocks most. https://www.defender.com/search.html...heater&x=0&y=0


    Gil and Durlene
    2003 H-3 Hoffman Conversion

  3. #3
    Join Date
    Jul 2020
    Location
    Simi Valley
    Posts
    274

    Default

    What did you end up doing about this? Did you replace the 2 water heaters?
    Mike Giboney
    My First Prevost
    1992 Prevost Country Coach #60187

  4. #4
    Join Date
    May 2020
    Location
    AUGUSTA
    Posts
    83

    Default

    The Kuumas are great water heaters, I've put a few in.
    --
    Chip Lamb
    Augusta, GA USA
    1997 Prevost XL40 Liberty
    1987 BB WL35SB
    706-339-3429 / chip@collectorsco.com
    Appraiser/Broker/Dealer/Inspector/REALTOR(R)

  5. #5
    Join Date
    May 2018
    Location
    Edmond
    Posts
    219

    Default

    Gil,

    Question for you on how my system works, I have a 1998 Featherlight with a Aquahot system. When I purchased the coach the Aquahot would not work so I turned on the breaker that says hot water heater..this worked but I had limited hot water. For the last year the Aqua Hot has worked perfectly and I have left the hot water breaker turned off. When using my Aquahot I can take a long shower with very hot water and after 10 or so minutes it stays very warm forever..

    I would love to understand a bit more on how my system works.

    Thanks
    David Thomas
    1998 Featherlight XL
    David Thomas
    1998 XL Featherlight

  6. #6
    Join Date
    May 2020
    Location
    AUGUSTA
    Posts
    83

    Default

    The breaker is for the electric element which Aqua Hot tells you is for momentary hot water. For "endless" hot water you need to have the diesel boiler operating. Basically you have a Webasto that heats a large water tank within the AH (big copper coil wrapped around the tank). That's as basic as it gets! Keep the filter changed and use it frequently or you'll need a new nozzle every so often within the Webasto head.
    --
    Chip Lamb
    Augusta, GA USA
    1997 Prevost XL40 Liberty
    1987 BB WL35SB
    706-339-3429 / chip@collectorsco.com
    Appraiser/Broker/Dealer/Inspector/REALTOR(R)

  7. #7
    Join Date
    Feb 2015
    Location
    Cloudland
    Posts
    68

    Default

    My CC had the 2 water heaters and it's my understanding that it was for faster recovery since one larger heater has the same element as the smaller (10 gal. vs 20 gal.) so recovery time for the 2 smaller heaters was twice as fast as the one larger one. One of mine sprung a leak and I replaced the two with one 10 gal. heater and haven't known the difference. I think that the two heaters was overkill.
    John and Judy Carroll
    1999 XLV Country Coach
    450 GC "Grande Center"
    2001 Jeep XJ, American Racing Mags

  8. #8
    Join Date
    May 2012
    Location
    Beverly Hills
    Posts
    3,983

    Default

    David, if you have the power keeping the AquaHot in electric and diesel mode is great option. Your neighbors may like you more too. With both electric and diesel on may reduce diesel burn time when electrically produced hot water is enough. The shortcoming with the older AquaHot was the limited wattage of the electric heat and small size of the hot water reservoir.


    Gil and Durlene
    2003 H-3 Hoffman Conversion

  9. #9
    Join Date
    Jul 2020
    Location
    Simi Valley
    Posts
    274

    Default

    I too had a small water leak, not too big, i was hoping all the tubing and seal replacement i did would fix this, but there was still some moisture, just the feet that attach the water heaters to the floor were always damp. Today's task was figuring out the water heater system since I was unable to get any hot water, I figured out both elements were bad. One was dead, the second was pulling down my 110 to 90 volts no matter what i did. I pulled out the elements and discovered the gasket that goes between the heater and the tank was leaking. 2 new heater elements, 30 bucks each will be here Tuesday, I will post pictures tomorrow, I had to cut the front panel to get the elements out. There was no way I was removing these from the Bus and disturbing the coolant system at this point. I know they don't make these heaters anymore, I have two of the Atwood EHP-10, the heater element is Atwood #91580.
    Mike Giboney
    My First Prevost
    1992 Prevost Country Coach #60187

  10. #10
    Join Date
    Jul 2020
    Location
    Simi Valley
    Posts
    274

    Default

    2 new Heater Elements will be here tomorrow, I used a dremel tool with cutoff wheel to cut the front panel. Once I have no more issues I will make a cover for the open area. I am interested to see the new gasket, There was no sign of a gasket when I removed these, just a very thin layer of black material. The bracket sitting in front of the water heater clamps the element in place and holds the tank centered in the sheet metal housing. Fans are drying out the fiberglass insulation.




    Attached Images Attached Images
    Mike Giboney
    My First Prevost
    1992 Prevost Country Coach #60187

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •