Question about RTO Atwood Water Heater - 6 Gal LP

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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 working. What else can I check?

Posted by Anonymous on

  • Anonymous Jun 24, 2010

    The pilot won't stay lit unless I'm holding the dial over.

  • Anonymous Jun 24, 2010

    The pilot won't stay lit unless holding the dial over.

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Mike Butler

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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.

Posted on Jun 24, 2010

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1 Answer

Pilot light will not stay lit. already replaced thermal coupler. 6 gallon


A thermocouple makes 30MV power by a temperature differential across the end of the thermocouple, many times people set the entire end inthe flame heating the entire end thus dropping out the power, you cannot bake them into working there must be a temperature differential from the base to tip about a 1.5 inch section. It wil not work correctly if the entire end is hot.

Otherwise the gas valve is bad.

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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

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I have a atwood model g6a-7 hot water heater, when you light pilot and after holding knob you turn to light burner the pilot goes out, i have replaced the jade pilot or thermal coupler with no help to the...


Sounds like it. Before replacing gas control, try removing thermocouple connection at valve and spray electrical cleaner in there and blow out with compressed air after, being careful not to get it in your eyes. If no electrical cleaner, try WD-40 and blow out after. If you twist up a piece of fine steel wool and insert in there as well and try to spin/twist it to clean contact inside may help as well. Blow out goo after and re-install fitting and try again. If that doesn"t work, replace gas control.
P.S. Highly recommend certified experienced tech perform this control valve replacement if necessary.

May 22, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

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

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1 Answer

I replace my thermal coupling. burner doesn't ignite


is the burner assembly sitting pronperly on it;s cradle,, this will put it at just the right distance for it to ignite,,

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