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Heater burns for a while then it goes off and pops and the pilot go out

My pilot will stay lite all the time until the heater comes on, then the heater burner burns for a while then it just kinda clicks and then the burner and the pilot go off. I can then light the pilot back and it continues to burn.

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  • fatjackbob Nov 11, 2008

    MY HEATER DOES THE SAME .BUT I HAVE HEATED THE THERMOCOUPLE WITH A LIGHTER AN IT WORKED UNTIL I TURN IT OFF.BUT AFTER IT COOLED OFF. I HAD SAME PROBLEM.I THINK THE THERMOCOUPLE IS BAD BUT IS ONLY A GUESS.

  • Anonymous Dec 02, 2008

    I have my heater hooked up to a propane tank. I live at high altitude but last year the same heaters worked fine. Pilot will stay lit but when I turn up the heat often it goes out and pops off the pilot too. Is there any tricks or?

  • barry bauman May 11, 2010

    Heater type
    -propane, natural gas, oil...which fuel type
    does the pilot go out...or why do you relight it...so it continues to burn
    ..the above are questions...but my keyboard won`t let me type it...just this instead é




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Hi again,
-perhaps you have resolved your issue, which is why you have not responded to my questions...this is great if it is true, but just incase I will attempt to answer it anyway

-the pilot does not require much fuel to maintain (more than you think..when you look at the summer bills)
-when the thermostat calls for the burner to fire, it opens the valve and the fuel SHOULD flow
-when insufficient fuel is provided, the increased demand actually causes the burner to extinish itself, which results in the valve automatically closing (safety feature)

Solution 1
-if the fuel is liquid (i.e. heating oil) there will be a filter which is likely the cause of the lack of fuel delivery....this is a $15 filter...available at many hardware stores..or even you fuel supplier
-the process is simple.

  1. ..TURN OFF THE FUEL (above/b4 filter)...
  2. spin off the filter...replace with the new one
  3. open the valve...bleed the system (don't screw the housing tight...let the fuel push the air out...ie. wait until the fuel spurts out the filter screws (this can be sorta messy)
  4. tighten filter...tada!
  5. if it works temporarily...then repeats the 'pop...goes out' then you still have air in the line
  6. if you followed the above steps 1-5...then we know it between filter and burner
  7. look at the bottom of the burner for the bleeder valve/screw...similar to car brake bleeder screw or a 1/2inch valve
  8. use a wrench...1/4 to loosen (have small bucket handy to collect fuel
  9. press & HOLD the red button to fire (note the fuel will now be pumped out the bleeder valve)
  10. wait a second or 2 for the 'stream' of fuel to be solid (ie. no bubbles in it)
  11. then tightten the valve the 1/4 turn...and release
  12. occassially you have to repeat this process a few times depending upon the length of fuel line
PLEASE BE CAREFUL....while the above is technically not difficult..you are dealing with a somewhat flamable liquid...(a bucket of fuel oil is actually difficult to light)...the 1st time is a steep learning curve...but after that you can do it in your sleep :)

if you are uncomfortable at all...then call a fuel burner technician...please!
Remember....anything other than a FIX-YA will lower my rating...so please if you have any other questions....ask....if not...then FIX-YA
bearb

Posted on Nov 13, 2008

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Hello
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http://thermocatalytic.com/Thermocouple.JPG
http://homerepairgeek.com/wp-content/uploads/2010/12/furnace-thermocouple.jpg

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