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Electric water heater will not stay on

I have a truma gas/electric water heater in my caravan, a problem occurs when the boiler is charged with water, when you turn on the electric water heater it brings the tank up to the temperature, (50C) once water is used (not all) the water will not heat up again untill i switch off the boiler for 5/10 minutes and it then heats up again, i have to perform this procedure all over again. no problem with the gas opperation. i have dusted the control board and cheaked the fue, fine, i,m at a loss as what to do.

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Sounds like the electrical thermostat is defective and is being over ridden by the overheat safety stat.

Posted on Nov 29, 2008


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Rheem tankless:

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I can get you started but might need more information.
Do you have tank-type electric or gas water heater?
Or indirect heater, or boiler, or tankless, or condensing, or under-counter?

If you have ordinary tank-type electric water heater, the thermostat is probably bad.
Replace thermostat(s)

If you have ordinary tank-type gas water heater, then thermostat can be bad, and thermostat is located on the gas control valve

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