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Old 01-10-2017, 04:29 AM   #1
Bob2
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Default Natural gas fireplace - pilot question

My natural gas fireplace has been having a problem and I was hoping to solicit some free advice.

It has an electronic ignition. Sometimes, the main burner shuts off and the sparker starts going, even though the pilot light is still burning.

From my understanding, this points to a problem with the thermopile. After observing it, I am confident it is a thermopile problem, as I can actually see the pilot flame dancing away from the thermopile, which interrupts the continuity, and then the main valve shuts off.

I have tried cleaning the thermopile, but I think the the flame just sometimes does not make continuity to the thermopile.

Is it normal for the pilot flame to burn almost horizontally? I tried turning down the main valve but the problem persists.

Any suggestions? I will gladly replace the pilot assembly or valve if someone thinks it is the problem. I'm kind of stumped. It almost like there is a big draft going through or there is air in the gas lines.


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Old 01-10-2017, 05:45 AM   #2
frodo
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picture of lit pilot would help to se the problem

sounds like a simple adjustment


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Old 01-10-2017, 06:01 AM   #3
Mr_David
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You can't adjust the pilot with main valve. there is a very tiny pin hole orfice that the pilot flame flows through. It's on a small thimble where the pilot tube is attached the pilot assembly.
you can clean it with a stand of wire from a wire brush.

Hold it up to a light. you can see if it's a clean hole.

There is often a port near the pilot tube on the main valve with a small cap.
Under that cap/plug is a small slotted head you can turn to adjust the pilot flame.

Pictures will help.
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Old 01-11-2017, 03:37 AM   #4
Bob2
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Hey thanks very much for the suggestions!

I attached a photo of the pilot flame. It seems rather horizontal to me?

I crudely adjusted down the pilot using the main gas shutoff valve, but it didn't seem to make a difference to the problem.

The burner valve is Dexen 6003K-3V. I must be st00pid but I can't figure out where to adjust the pilot on it:
Screenshot from 2017-01-10 23-16-49.jpg  

Last edited by Bob2; 01-11-2017 at 05:18 AM.
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