Question about RTO Atwood DSI-RV Water Heater-6 Gallon

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Hi, I have a Atwood 91043 (Model 37C14U-5). The pilot and main burner seem to work fine (main burner ran a couple minutes then shut down) but I'm not getting hot water at the facet. I have the trailer connected to city water and power from my house. Thanks. Alvin

Posted by four_alvin on

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Mike Butler

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Have you checked back of water heater for proper valve positioning? (by-pass may be on)
Cold water enters through bottom fitting and hot comes out the top. Any valves in between should be closed and any valves going in bottom and out top should be open.

Posted on Jun 04, 2011

  • craneboo Aug 07, 2011

    The by pass is not the problem..water is going in the tank but not coming out. It was working one day and then not the next. You can hear the pump come on and go off quickly when you turn on hot water tap. I have drained the tank and reffilled it so it appears that the problem lies with the out going flow of the hot water from the tank. My guess is that an inline check valve has siezed up and is preventing the hot water from flowing out of the tank. Does this sound reasonable

  • Mike Butler
    Mike Butler Aug 08, 2011

    Yes, there usually is a check valve at hot line outlet. Not unusual for it to come apart inside valve and little plunger like piece blocks flow through. It may look just like another fitting but it should be a check valve where the water line attaches. If you can get one replace it, but if not, just use a short 1/2" pipe nipple to replace it for now. Plastic or galvanized.

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1 Answer

Any idea why my Atwood water heater will shut the main burner and the pilot light off at the same time? Sometimes runs for 20 minutes, sometimes 2. I hear a clicking sound, then they both shut off.


The thermostat shuts off the main burner.The pilot light gas is controlled by the thermocouple which the side of the pilot flame has to envelop. If the flame is too small or too far away from the flame, it shuts the gas off to the pilot. The thermocouple generates a small voltage which keeps the pilot gas open. It can over time fail itself, so look at replacing it. The thermostat sounds like it's failing too.

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Will this solve my problem of the pilot going out after the water is hot?


Your thermo coupler may be going out. If the thermo couple does not sense heat it will shut the gas off. This is a safety feature. Once you replace that you should be ok.

Aug 14, 2012 | Camco 08773 Gas Pilot Assembly 9 Inch for...

1 Answer

I have a Jayco pop up with an Atwood water heater, serial # 37C14U-5. My problem is two-fold. The water heater pilot doesn't stay lit after initial run, and propane is leaking out of the vent on the...


Leaking propane is red flag #1 and fire hazard.
Immediately update your insurance and then turn off gas.
If pilot is not staying lit, then gas leak can be cause of pilot problem since pressure on the line is reduced.
Other causes include bad gas control valve, air in the gas line, bad thermocouple, burner parts need cleaning, or all the above.
After fixing leak, replace thermocouple, clean combustion chamber and burner parts, and bleed gas line to remove air.

More resources:
http://waterheatertimer.org/Atwood-water-heater-resources.html

Jun 28, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

I have an Atwood 6gal hot water heater with a 37c14u-5 controller. The pilot light will not stay lit. I have replaced the thermal coupler twice and the pilot tube with orfice once. It's still not...


Try removing the thermocouple where it attaches to gas control, and spray a little WD-40 in the hole, then spin a rolled up small piece of steel wool in the hole as well, then blow it out with compressed air if you can. Then reconnect thermocouple. Make sure thermocouple tip is getting good flame under it, and if that doesn't cure it, then it's time to replace gas control.

Jun 23, 2010 | RTO Atwood Water Heater - 6 Gal LP

2 Answers

The pilot light blows out every time the main burner shuts off. It will light, the main burner comes on, everything seems ok until the main burner shuts off, then the pilot light goes off also as if the...


it's the thermocoupler ( about $20 ) that is bad replace it. if that doesnt do it it is the box with the on/off/ pilot button ( about $175 ) I found a complete unit at www.americanrvcompany.com for $275 plus shipping ($300 total) and that is how i fixed the exact problem with mine.

Oct 07, 2009 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

The pilot light & will stay lit. untill the burner cycles on/off


MAKE SURE THE BURNER TUBE AND ORIFICES ARE CLEAN. MAKE SURE YOU HAVE THE PROPER LP PRESSURE.

Oct 05, 2009 | RTO Atwood Water Heater - 6 Gal LP

2 Answers

After a few minutes of burner heating the water, gas shuts off.


A couple of things to check:

If possible, remove the pilot gas assembly and clean the gas jet and thermocouple - they can get carboned up and stop working properly. Make sure the pilot flame and deflector is aimed properly and making the thermocouple glow red hot. If the problem persists, you may want to replace the thermocouple and also check the propane regulator.

Apr 20, 2009 | RTO Atwood Water Heater - 6 Gal LP

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