pilot blows out

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  #1  
Old 11-17-04, 02:50 AM
nbro62
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pilot blows out

Hello,
I have an older natural gas fired furnace which is not working properly.
I can light the pilot with no problem but when i turn the valve to on the burner kicks on and sometimes, not always, blows out the pilot light.
If i am right there with it i can use a match too relight the pilot while the burner is going, this keeps the furnace from shuting down.
Sometimes the furnace performs all night without a problem and other times the burner kicks on and blows out the pilot.
Im thinking that a new burner assembly may be a solution, just buy a new burner and hook it up too my gas line and yippie skippie im good too go.
Whats going on,
Thanks in advance,
Nelson B
 

Last edited by nbro62; 11-17-04 at 02:56 AM. Reason: add too post
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  #2  
Old 11-17-04, 04:24 AM
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nbro62, Welcome to the DIY Forums.
Before you buy a new burner, you may wanr to try blowing the old one out with air. Dirt and dust can cause problems with proper burning. Is your pilot light an all blue flame? Should be no orange in the flame. Good luck.
 
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Old 11-17-04, 05:22 AM
nbro62
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Thanks for advice

Thanks for the advice, i checked the pilot and there is some yellow in the tip of he pilot flame.
What do i do now.
The furnace has come on and ran without trouble so far this morning,
the pilot has stayed lit.
What happens is the burner will some times come on and blow out the pilot.
Could a power ventor correct this problem?
Thanks again
Nelson
 
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Old 11-17-04, 05:25 AM
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Cleaning the parts will help. May be an adjustment on the pilot or the gas tube may just be dirty. Good luck.
 
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Old 11-17-04, 06:34 AM
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Like said on a weak pilot you could remove the whole assymbly and blow it out good. Also if the heat exchanger and flue have not been cleaned in a couple years it's time to get that taken care of.
 
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Old 11-17-04, 10:26 AM
nbro62
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You both have been most helpful and i thank you.
What is causing the burner too blow out the pilot?


thanks
 
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Old 11-17-04, 10:35 AM
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If the flame is not all blue, it is called a "weak" flame. Not enough gas to air mixture. More air than gas so when the main comes on it "blows" the pilot out.
 
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Old 11-17-04, 12:20 PM
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Wink

times the burner kicks on and blows out the pilot.
like said clean the pilot venturi out real good. Also check the pilot lighter strip there that it is clean. Put a new T/C in also dont cost that much.

ED
 
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