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Thread: Water Heater Leak

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  1. #1
    Join Date
    May 2012
    Location
    Beverly Hills
    Posts
    4,652

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    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

  2. #2
    Join Date
    Jul 2020
    Location
    Simi Valley
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    965

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    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
    1992 Prevost Country Coach
    #60187

  3. #3
    Join Date
    Jul 2020
    Location
    Simi Valley
    Posts
    965

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    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.




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    Mike Giboney
    1992 Prevost Country Coach
    #60187

  4. #4
    Join Date
    Jul 2020
    Location
    Simi Valley
    Posts
    965

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    Yesterday, I had to vacuum the sediment out of both water heater tanks, flush with fresh water for about 15 mins, then vacuum. I did this 4 times for each heater and I think they are pretty clean for 28 years old. The new elements are installed, powered up, and started to heat the water. I only gave them about 15 minutes checking voltages on the heaters, thermostat and cutout, the water didn't have enough time to get hot but it was warmer. I will leave the system pressurized and heaters off overnight to see if there are any leaks before I button it up. I will be glad to put the water system behind me so I can move to the Webasto.
    Mike Giboney
    1992 Prevost Country Coach
    #60187

  5. #5
    Join Date
    May 2012
    Location
    Beverly Hills
    Posts
    4,652

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    Mike, a 30 year old hot water tank that's not leaking or about to leak is pretty impressive.


    Gil and Durlene
    2003 H-3 Hoffman Conversion

  6. #6
    Join Date
    Jul 2020
    Location
    Simi Valley
    Posts
    965

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    Thanks! maybe it was the silt insulation it had on the inside. It has been sitting at 40 psi for almost 24 hours now and no pressure drop yet.
    Mike Giboney
    1992 Prevost Country Coach
    #60187

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