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Forum Index => Heating & Air Conditioning Repair (HVAC) => Topic started by: ajh74 on November 30, 2010, 09:12:43 AM

Title: pilot light goes out
Post by: ajh74 on November 30, 2010, 09:12:43 AM
Hello   my pilot light keeps going out. I have lit it 3 time now first time was on blackfriday it went out monday  afternoon lit it before I went to work monday at 9pm came home tuesday am it is out,

Model 876.76471
Title: Re: pilot light goes out
Post by: JWWebster on November 30, 2010, 10:55:54 AM
I could not make that model work but what are we working on? A heater? A dryer? A stove?
Title: Re: pilot light goes out
Post by: jumptrout51 on November 30, 2010, 04:11:09 PM
I think this is a trick question.
Title: Re: pilot light goes out
Post by: JWWebster on November 30, 2010, 08:53:56 PM
Old sears gas furnace: OK I would first replace the thermocouple. It may be getting weak. I would check the pilot light for buildup on it that would cause the flame to be weak and therefore contribute to the pilot going out. Also drafty conditions can cause pilots to blow out.
Now if this is a millivolt type floor furnace it could very well be the pilot generator, or a weak pilot flame. Got pictures of it?  :)
tr (http://www.youtube.com/watch?v=5j29RILOGOU&feature=player_embedded)
Title: Re: pilot light goes out
Post by: trentech777 on August 23, 2013, 10:22:42 PM
The thermocouple is a cheap first step I agree.  If the pilot light continues to extinguish, then the quality of the flame is probably not sufficient to tell the gas valve (through the thermocouple signal) - that the pilot light is lit - even if the flame is blue.  Just take a Q-tip with some alcohol and clean the flame nozzle (shaper) to remove carbon build up from the orifices - doesn't take much - and the flame will be hot enough to signal a lit pilot light.   I'm 0 for 3 on thermocouples.
Title: Re: pilot light goes out
Post by: RegUS_PatOff on November 08, 2013, 07:51:23 AM
... what are we working on? A heater? A dryer? A stove?
LP/Natural Gas Refrigerator  O0