Question about Vulcan Heating & Cooling

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I have a Vulcan heater, that has been working fine. The pilot light went out. I have managed to get it working again. But now the heater will not light up. When I turn the knob for some heat, nothing happens. Please can you help?

Posted by Dean Huddle on

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john h

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  • Vulcan Master
  • 23,515 Answers

Check and test thermocouple

Posted on Aug 18, 2018

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Anonymous

  • 8 Answers

SOURCE: Patio Heater pilot lights won't stay lit

crappy pilot flame (not properly heating the thermocouple), bad thermocouple, thermocouple loose where it screws into the pilot safety valve, bad safety valve magnet.

One or more of those is the problem.

Oh...there is also a saftey switch...in case it tips over. It will also cause the pilot to not stay lit (if the switch or wires that go to i are faulty)

Posted on Jun 18, 2008

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Anonymous

SOURCE: Vulcan freeloader hot water heater

Could be moisture in the gas supply line - get your gas fitter to purge the line at the meter.

Posted on Aug 03, 2008

Papa0106

  • 13 Answers

SOURCE: Pilot light won't stay lit

Look for dust and lint. Look for them in places where gas should be freely flowing. I had a similar problem with an Empire Corcho wall-mounted propane ceramic catalyst heater. First it was the pilot light, then the #2 ceramic mantle. After horsing around with the gas lines and pressure regulators and trying to re-aim the pilot, it all turned out to be dust and lint in the gas passages. A little dust bunny in the brass pilot tube gave me a pilot light the shape and color of a banana. One puff of compressed air, and I got back my razor-sharp pilot. And some dust in the chimney of the #2 burner kept it burning blue/yellow and blistering paint off the upper surfaces of the heater. A bit of cleaning with a shop-vac put that right. "Passive" heaters are very much prone to this sort of problem because they rely on convection currents (i.e. LOW velocity) to get the job done. Convection currents are notorious dust collectors, as in COBWEB CITY.

Posted on Feb 28, 2009

clay

  • 74 Answers

SOURCE: AO Smith water heater won't fire.

I bet your thermo couple is bad or your ports are clogged? How old is the unit?

Posted on Apr 16, 2009

Anonymous

  • 540 Answers

SOURCE: williams debonair wall heater + pilot light problems

THE flame from the pilot should shoot past the thermo-couple and heat this up and make a small amount of mili- amps to prove the pilot light is lit. ..So if the flame doesn,t go past the thermo-couple it won, make mili-amps or its tme to change out the thermo-couple, They only cost lest than $8:00 and you can change it!

Posted on Dec 22, 2009

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Pilot light won't stay lit


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