DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > Pilot Light Will Not Stay On




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Old 11-16-2006, 10:02 AM  
randy moore II
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Default Pilot Light Will Not Stay On

I recently light my pilot light on my furnace and had difficulty getting it to light. So, I replaced the thermocouple and this helped. But now, when the furnace cycles off, it blows out the pilot light. I can go back and light the pilot and its good for one cycle then gets blown out. I'm not sure how to proceed. Any ideas?


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Old 11-16-2006, 11:38 AM  
CraigFL
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Check to be sure somthing like corrosion isn't plugging up the pilot hole...
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Old 11-16-2006, 11:43 PM  
Aceinstaller
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clean pilot assembly:

1 turn off gas valve and remove pilot tube from pilot assembly(you might have to remove assembly from the furnace to make this easier)

2 there will be a pilot orifice in the pilot that you will find after removing the pilot tube.

3 use compressed air to clean any debris from orifice and the pilot itself.(DO NOT STICK FOREIGN OBJECTS INTO ORIFICE TO CLEAN, IT WILL DAMAGE IT)

4 reassemble and relight pilot and cycle furnace

if the problem continues call a certified service tech. there are a few other reasons that pilots will blow out after a cycle including: gas valve, cracked heat exchanger, insufficient combustion air and so on.
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