Mr. Bill TT
California
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Joined: 02/02/2012
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2011 Cross over 6gal water heater boils out if left on...
I dont see any adjustable thermostat???
Cant be normal??
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jerem0621
SE Tennessee
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Joined: 05/17/2009
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Mr. Bill TT wrote:2011 Cross over 6gal water heater boils out if left on...
I dont see any adjustable thermostat???
Cant be normal??
It should not be boiling. You may have a thermostat issue. Make sure that your thermostat is actually plugged up.
One other thing
That comes to mind. If you do not have an air pocket in your water heater it will allow hot water to seep out of the pop off valve.
After you pressurize the water system turn off the water, walk back to your water heater and open the pop off valve.. It should allow the water to push out and will create the much needed air pocket. Chances are that your issue will go away.
Thanks.
TT: 1995 Layton 2910
Tow Vehicle: 1999 F-350, v10, , 2wd, Crew Cab, Dually
Hitch: Draw-Tite Trunnion WD Hitch with Reese Dual-Cam sway control
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Old-Biscuit
Across the USA
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Joined: 06/20/2009
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What do you mean by 'boil out'?
On propane....on electric?
What make/model water heater?
T-stat and ECO (Hi Limit) are fixed temperature.....no adjustment. (Adjustable T-stat is available)
If 'boil out' means High pressure/temp relief valve is weeping then the suggestion about establishing the air pocket is correct.
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PapPappy
Wilmington, NC
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Joined: 12/23/2007
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X3 on the air pocket.
Bill & Claudia / DD Jenn / DS Chris / GS MJ
Dogs: Sophie, Abby, Brandy, Kahlie, Annie, Maggie, Tugger & Beau 
RIP: Cookie, Foxy & Gidget @ Rainbow Bridge.
2000 Winnebago "Minnie" 31C, Ford V-10
Purchased April 2008 FMCA# F407293
The Pets
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mobeewan
Hampton, Va
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Joined: 01/03/2007
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Mr. Bill TT wrote:2011 Cross over 6gal water heater boils out if left on...
I dont see any adjustable thermostat???
Cant be normal??
There should be one of the following on the gas control for the water heater under the outside access door. A metal bar on the side of the control that moves up and down. A round dial on the face of the control. A plastic tab with holes in it in an arc pattern that the edge can be lifted up and then rotated and moved to allow a different hole to rest on a raised pin.
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eHoefler
ozark mountains
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Do you leave the water on? System pressurized.
2010 Ram 3500, Crew Cab, Long bed, 4 x 4,Dually, Lights & Siren!
2006 40' Landmark Mt. Rushmore
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Mr. Bill TT
California
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Wow... Thanks to all...
Question...
Gas water heater, and i can not seem to locate any type of temperature reguulator or adjustment... all printed circuts only.
Is bleeding the air out of the system correct answer?
I.E. turn on water, open relief valve to allow air to escape??
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JJBIRISH
Butler, PA, USA
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Joined: 10/06/2002
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No you want the air pocket… the air compresses as the water heats… water doesn’t compress well…
Your water heater is most likely water logged… The air pocket can eventually be absorbed by the motion of the vehicle and should be restored from time to time…
To restore the air pocket, turn off the water pump or city water supply and open a hot water tap to reduce the water pressure to zero…
Remove or open the water heater drain plug or valve, and allow the water heater to drain and flush it by running water through it for several minuets…
reinsert the plug or close the drain valve and re-fill the water heater tank until the water appears at the opened hot water faucet you have now reestablished the air pocket, relight the hot water tank…
Love my mass produced, entry level, built by Lazy American Workers, Hornet
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We Cant Wait
Jamestown NY
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Question on the air pocket issue. I've camped for 6+ years with 3 different trls. All had the same water heater (suburban?). I've never had and air pocket. In fact when I turn on the water, I usually open the relief valve to speed up filling the water heater, and close it once the heater is completely full. I've not had any issues with the valve leaking once the heaters turned on. Have I just been lucky or is the air pocket sort of and urban legend thing?
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sh410
Northwest
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Joined: 08/29/2007
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Fom the Suburban Manufacturing website.
Why does water drip from my water heater's pressure and temperature (P&T) relief valve?
You may experience water weeping or dripping from your water heater's pressure and temperature (P&T) relief valve when your water heater is operating. Water weeping or dripping does not mean that the P&T valve is defective. As water is heated, it expands. The water system in a recreational vehicle is a closed system and does not allow for the expansion of heated water. When the pressure of the water system exceeds the relieving point of the P&T valve, the valve will relieve the excess pressure.
One way to reduce the frequency of this occurrence is to maintain an air pocket at the top of the water heater tank. This air pocket will form in the tank by design - however, it will be reduced over time by the everyday use of your water heater. To replenish this air pocket:
1.Turn off the water heater.
2.Turn off the cold water supply line.
3.Open a faucet in the RV.
4.Pull out the handle of the pressure relief (P&T) valve and allow water to flow from the valve until it stops.
5.Release the handle on the P&T valve - it should snap closed.
6.Close the faucet and turn on the cold water supply. As the tank fills, the air pocket will develop. Repeat this procedure as often as needed to reduce the frequency of the weeping P&T valve. If the weeping persists after following this procedure, you may elect to have your dealer install an expansion or accumulator tank in the cold water line between the tank and check valve to relieve the pressure caused by thermal expansion.
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