Question about Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF

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Where is the combustion shutoff device - Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF

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The combustion shut off device is usually the gas shut off valve.
follow the gas flex connected to the water heater gas controll, to the wall, you should find the valve located somewhere near the wall.

Posted on Aug 31, 2010

  • Steve Paquin
    Steve Paquin Mar 24, 2011

    the combustion shut off device is not the gas valve. it is a spring loaded device that is behind the burner plate. When it trips due to high temp it shuts off the combustion air completely which blows out the pilot then the thermocouple shuts off the gas.

  • voec2002 Jun 21, 2011

    how do you reset it if it trips

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Posted on Jan 02, 2017

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2) GE is made by Rheem, so air intake screen is located below the combustion burner, as is the TRD (thermal reset device).

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Remove the burner and look for the evidence of broken glass bulb that holds the air intake open.
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