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Our vulcan wall heater when trying to start when we release the button the flame goes out.

Posted by Mary Szybkowski on

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Steve F

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The thermocouple which senses the flame has probably failed or it could be a poor pilot flame (Dirty or partially blocked injector) Get a licensed gas Tech to service it if this hasn't been done previously.

Posted on Oct 01, 2018

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Anonymous

  • 148 Answers

SOURCE: natural gas patio heater

MAY I KNOW THE EXACT MODEL # OF YOUR UNIT.

Posted on Sep 27, 2008

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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

dmftrucker

daniel hendrickson

  • 1922 Answers

SOURCE: Heater won't stay lit after releasing yellow button

you need to replace the thermocouple at the burner tip it will be a copper line with a bulb in the flame tip with a copper tube leading back to the gas valve and it senses the flame and keeps the gas valve open

Posted on Dec 24, 2009

mxc2

Marc Powers

  • 146 Answers

SOURCE: My all-pro propane heater will not stay lit for

This sounds like a problem with your thermocouple.

Just remove the end of the thermocouple from where is goes into the gas valve and leave the end that goes into the flame in place.

Clean the end of the thermocouple connect by scraping off just a little metal from the end just about there the nut tightens the thermocouple into the gas valve. After you have exposed some new metal do the same inside the valve where the thermocouple seats into the gas valve.
Use a small pic or similar item to scrape inside the gas valve to expose some new metal there also.

Now reassemble the thermocouple into the gas valve and see if the heater works.

Here is a link with some more instructions.
http://www.msservice.net/ts/reseat_thermo-clean_pilot-ODS.htm

If this does not solve the problem you may need a new thermocouple and you can find that at www.desaparts.com

Thanks

Posted on Jan 05, 2011

kel1guy2002

Kelly

  • 3740 Answers

SOURCE: can't light a vulcan heritage

Hi and welcome to FixYa, I am Kelly.

What you are experiencing is the lack of a signal from the thermocouple to the gas valve. I.e. the thermocouple is not passing heat information at all. This is caused by either a defective thermocouple, a dirty mating area where the thermocouple connects to the gas valve or... an improperly positioned thermocouple that is not "in the flame" with the pilot lit.

  • First make sure the FIRE end of the thermocouple is in the flame when lit. (reposition if necessay)
  • Next disconnect the thermocouple by unscrewing the fitting on the top of the gas valve. (No gas will come out) Clean the metal mating area as best you can and then re-install the thermocouple. Just a good snug fit. Once you feel it come snug add 15 degrees of tightening motion with a wrench.
Attempt to light the pilot... wait 45 seconds to 1 minute while holding the pilot button down before letting it up. If it stays lit.... GOOD JOB. If it goes out the next step is to replace the thermocouple. If after replacing the thermocouple it does not stay lit the remedy is to replace the gas valve. There are no short cuts and the sequence of repairs is just as I stated in order.

You can remove your old thermocouple and walk in to almost any appliance parts supply or Plumbing and heating supply to purchase the correct thermocouple without a part number. They will match it up with yours.

Thanks for choosing FixYa,
Kelly

Posted on Feb 20, 2011

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