Hot water tank problem - Fiberglass RV


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Old 07-12-2017, 02:52 PM   #1
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Hot water tank problem

My hot water tank seems to function ok, but when the burner shuts off there's a small yellow flame that continues in the chamber where the air mixes with the propane. Does the valve need replacing? It's in a 86 bigfoot. (older Atwood tank) Thanks!
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Old 07-12-2017, 02:57 PM   #2
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Welcome to FGRV, sounds like the pilot light burning, normal for heaters before DSI lighters came around.
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Old 07-12-2017, 04:16 PM   #3
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The flame is in the mixing chamber. I just replaced the pilot light and it's now working fine (flame was coming out of the oxidized propane line to the pilot light) i noticed the new problem while watching to see that it was working properly.
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Old 07-13-2017, 02:35 PM   #4
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Does your burner tube have an air adjustment that can change the amount of air entering the tube? If so, perhaps moving that will help.
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Old 07-14-2017, 04:24 PM   #5
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Yes. There's a collar with slits in it that moves back and forth to change the mixture. That's were the flame is hanging out. If i move it back it might choke off the flame?
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Old 07-14-2017, 05:31 PM   #6
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That very well could work, the collar adjusts how much air goes into the tube, but I normally adjust mine so that the flame when on full burner mode is a good shade of blue. If it doesn't let enough air in then you will get a more yellowish flame and soot.
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