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Posted on Dec 05, 2008
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Waterheater pilot will not stay lit would like to know if the gas jet fails?

  • cj_jackson Dec 05, 2008

    Maybe i was not clear the pilot has a hole below gas outlet which gas should not be coming from i believe does that mean the pilot has failed and not the thermal couple

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  • Expert 85 Answers
  • Posted on Dec 05, 2008
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If there is no air in the gas line, then at pilot lighting you should smell gas, if not then yes your valve failed. But if it's not igniting, then your lucky and all you have to do is replace the ignitor. you should be able to stick a match in there unless it's enclosed. Be carefull!

  • Anonymous Dec 05, 2008

    Yes, and excuse me for that, for your info when the pilot flame heats the tip of therm it produces a direct current, (millivolt), the current then travels through wire and energizes the gas valve. If your smelling gas other than the tip of pilot, you may have to replace the pilot, and or gas valve.

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Related Questions:

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I have a Rheem m441506191 50 gallon water heater. It had a Honeywell wv8840c1406 gas control with a thermopile (not a thermocouple). The pilot wouldn't stay lit, it turned out the thermopile was giving 140...

The system I am familiar with uses a vapour pressure type thermocouple and if the pilot remains lit the thermocouple is working as it controls the gas for the pilot and the burner at the same time from the same source - if the gas control is ok and the flow isn't prevented by the thermostat then if the pilot remains alight, there should be a flow of gas and the burner should light - unless the gas jet is blocked or something else, some other type of blockage is preventing the flow of gas to the burner...

I suggest you check the gas jet and the flow of gas to it...
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Open following links for resources:
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/pdf/Attic-Ventilation-and-Pilot-Outage-in-Gas%20Water-Heaters.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
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