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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > ATWOOD WATER HEATER WON'T SHUT OFF

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LVJJJ

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Posted: 10/01/21 12:05pm Link  |  Quote  |  Print  |  Notify Moderator

Got an '05 Trail Cruiser, 6 gallon HWT took a long time to get hot so replaced the propane valve. Now I have a nice hot powerful flame. Now it won't seem to shut off the flame even after 1/2 hour and the water is really really hot. So replaced the two thermostats. Still won't shut the flame off. Now what?


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enblethen

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Posted: 10/01/21 05:00pm Link  |  Quote  |  Print  |  Notify Moderator

Start by verifing wiring. Could be ECO and thermostat wires are backward.


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MT BOB

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Posted: 10/01/21 05:09pm Link  |  Quote  |  Print  |  Notify Moderator

Probably would help if you posted the model # of the water heater.

larry cad

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Posted: 10/01/21 05:10pm Link  |  Quote  |  Print  |  Notify Moderator

Verify the two thermostats are in physical contact with the water tank so they can measure the actual temperature.


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Skibane

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Posted: 10/01/21 10:25pm Link  |  Quote  |  Print  |  Notify Moderator

While the burner is lit, try pulling one of the wires off the propane valve.

If the burner continues to run, the valve is sticking - and defective.

hohenwald48

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Posted: 10/05/21 11:20am Link  |  Quote  |  Print  |  Notify Moderator

Check the water temp with a thermometer. "Water got really hot" is not very specific. RV water heaters get significantly hotter than the water heater in your home.

A 6 gallon tank will take about 30 minutes to heat up a tank full. A little longer would not be surprising.


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ISBRAM

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Posted: 10/08/21 04:57pm Link  |  Quote  |  Print  |  Notify Moderator

My last campers water heater didn't have a mixing valve and it shut off at around 120F. My Airstream's Attwood does have a mixing valve on the water heater outlet I think it runs up to around 180F before it shuts off. I'm told the idea is a 6 gallon water heater with a mixing valve that heats the water hotter will give you the equivalent supply of a much larger water heater.


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