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Water heater pilot light

Pilot light gets blown out when main burner is lit

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  • Ken Bledsoe May 11, 2010

    I just fixed this one symptom just like this one. Well I didn't fix it I told home owner to contact gas company because the gas supply to house was not consistent. He called them up and that day he called they came out and replaced the gas meter. Now his problem was real close to this one except his furnace would cause the pilot to be blown out. let me know if that helps.

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It also sounds as though the pilot injector could be blocked so when the boiler comes on it extinguishes the pilot & then when the burner goes off boiler shuts down, or also the pilot rate maynot be set right, so when the main burner kicks in it robs the pilot of the gas it requires.
It could be that, or there is lack of ventilation for the boiler, so you get flame lift off when the boiler fires?

Posted on Dec 15, 2008

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Richmond gas hot water heater. After I light pilot and main burner why does it flame out in 15 seconds?


If you had to light the main burner manually, something is wrong. Once you light the pilot and it stays lit, the flame heats the thermocouple to open the gas valve and fire the main burner. Either or both of the components you replaced could be defective.

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The pilot light & will stay lit. untill the burner cycles on/off


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