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What would cause the pilot light on a gas heater to keep gooing out

Just changed the tank yesterday the heater has worked good til now and the pilot light keeps going out. it will relite and burn for awhile and then it will go out

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Make sure you have a clean and strong pilot light. Take a rubber tube and blow the pilot head to make sure something didn't partially block your pilot when it was off reducing the heat to the thermocouple or thermopile.

Posted on Dec 31, 2012

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Posted on Jan 02, 2017

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AZSTALZ
  • 1 Answer

SOURCE: charmglow patio heater

Well, I just went out this morning and worked on the heater after it would not light last night. Turns out that a spider or moth set up camp in the pilot light intake housing and plugged up the two small mixer holes that pull in air for the pilot light. This would explain the 'yellow-flame'. I took a punch awl and some compressed air and cleaned out the hole, then re-installed the cover and knob. Lastly, I turned and depressed the knob and the pilot light ignited almost instantly, stayed on when I let the knob up, and the heater turned on normally after that. Good luck, I hope this helps.

Posted on Nov 09, 2008

  • 1 Answer

SOURCE: Unable To Keep Pilot Light Lit!

I have a Williams top vent gravity wall furnace (model 5009622) and I had the same problem. I had to take the cover off the furnace -- screw on top and two at the bottom (open the access door and there is one screw on each side) to get to the reset button for the vent safety shutoff system. On my furnace it's on the left side toward the top of the unit. I pressed the little red reset button and it's been working ever since. If your furnace is properly installed and doesn't have bird's nest in the chimney, it should work fine. Good luck!

Posted on Dec 06, 2007

  • 48 Answers

SOURCE: heater burns for a while then it goes off and pops and the pilot go out

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

clyde2j2
  • 137 Answers

SOURCE: Dayton Furnace - Pilot Light Goes Out but Fan keeps running?

Pilot lighted furnaces have a thermocouple made from disasimilar metals that when heated create electricity to actuate a relay that alows the gas to flow to the furnace.

When the thermocouple gets coated with carbon from the pilot lights constant burning it acts as an insulator and keeps the thermocouple from getting enough heat to generate electricity, a very good safety factor.

What you have to do is locate the thermocouple it should be located over the pilot light, you will see a gray substance around the thermocouple it will be hard like cement, take a knife and scrape away as much of the gray material as possible then sand the themocouple with a medium sandpaper until it shines, use one of you wifes emery boards, this should solve your problem.

Posted on Feb 24, 2009

  • 1 Answer

SOURCE: pro comm natural gas heater, pilot keeps going out

The problem is likely to be either the thermal-couple (easily replaced) or a clogged gas orrifice. The clogged orrifice would require a bit more know-how then the thermal-couple and with gas appliances it would be best to hire someone who knows what they are doing.

Posted on Mar 21, 2009

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Desa heater


For (fire) safety, there is usually a thermostat that will turn off the gas if pilot light goes out.

So when you try to light the pilot you will have keep press & hold the pilot gas supply for at least 10 sec until the thermostat is heated up. Then only when the pilot light stays on continually, can you turn on the burner.

Forget about changing to a High pressure regulator!

Dec 24, 2013 | Heating & Cooling

1 Answer

Can propane gas lines cause pilot lights to go out?


It could be a blockage in you pipes or blocked pilot on water heater nees cleaning or your pipe size is too small for both or you are low on gas or reg on tank not working ie wrong working pressure .

Dec 28, 2012 | Heating & Cooling

2 Answers

I can"t keep my pilot light going.


I am assuming this is a patio heater. I have extensive experience with gas appliances. The most common problem with pilot light issues is the thermocouple it is a probe that is directly over the flame , it senses the flame and allows gas to flow, if it senses no flame the gas valve closes. Patio heaters are also quite finicky, sometimes a simple adjustment of the thermocouple will do the trick. Also thorough cleaning of the orifice is necessary at least 1 x a year.

Dec 12, 2011 | Pool & Spa

1 Answer

Reliance 606 natural gas water heater - model #640YORT - water does not stay hot. pilot has to be clicked to heat and then u can use hot water til tank empty and it will not continue to heat water.


If I understand correctly, the pilot light is not staying lit.
You light the pilot and water in the tank reaches temperature.
Once hot water is gone, then pilot light has to be lit again.

Gas pressure is good, and gas is flowing.
Thermostat is working at high end because it cuts off heating.
Vent is working because tank heats up.
Air intake is working.

Gas control thermostat might not be reading low temperature. Replace gas control valve.
Pilot tube might be dirty. Clean burner parts and combustion chamber, and air intake, and vent.
Backdraft might be blowing out pilot. Check for constant updraft by running water heater 5 minutes, and then light match under vent hood and see if smoke goes up.
Very hot air can put out pilot, especially when water heater located in attic. Add ventilation.
Improper vent might have water dripping back down into combustion chamber and putting out pilot light and rusting out the parts. Inspect for rusted parts and water.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf

Aug 09, 2011 | Reliance Natural Gas Water Heater Control

1 Answer

Pilot light keeps blowing out. When I do get it working it only works for a little while and the pilot light goes out again. It seems like there is to much presure. I have regular 5 gal propane bottle...


dmartin - Unless there is a strong draft, pilots don't normally don't blow out.

What you described, sounds more like the interior of the heater needs a thorough cleaning. Especially, the pilot assembly and the Oxygen Depletion Sensor (ODS), which is part of the pilot. Also, the placement of the gas grill tank you're using to fuel the heater, may also being playing a role in it, too.
How far away is the tank from the heater and what size gas line is running from the tank to the heater and was it professionally installed? If you live in a high altitude are (above 2000 feet) this may also, be causing the problem.

I have included a link, which demonstrates the proper way to clean a pilot assembly and the ODS sensor. This should be a big help to you.
http://www.desatech.com/techDocs/Cleaning%20Demonstrations.pdf

Please let me know about my questions above and I can provide you with more information on further troubleshooting the problem.

Jun 03, 2011 | Procom MN100HPA Heater

1 Answer

Believe I need to buy a Rheem Water Heater Thermocouple. Where do I find them?


If thermocouple is from ordinary tank-type water heater, then it is a generic part with different lengths 15" 17" 21" 24" 30" available at hardware of home center.
I suggest reading manual for installation information, advisories, and required maintenance.
http://waterheatertimer.org/pdf/Rheem-Ruud-water-heater-parts-guide.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#clean

There are good utube videos on replacing thermocouple.
Tip of thermocouple has to be positioned in the pilot flame.
The heat on tip of thermocouple causes millivolts of electric current that travel back to the gas control valve and the electrical signal causes gas control valve to keep gas flowing down the pilot tube to the pilot light.
If pilot light blows out or if pilot tube is clogged and needs to be cleaned, or if gas valve has gone bad, then tip of thermocouple cools down and electric signal back to gas control valve causes gas control valve to shut off gas going to pilot.

When attaching thermocouple to gas control valve, it is finger tightened.
Be careful and do not cross-thread thermocouple. Just use your fingers to start the nut.
Finger-tighten thermocouple and then add 1/4 turn using small wrench.
The end of thermocouple has a small piece of insulation that isolates the electric current from body of gas control valve. If thermocouple is overtightened, the insulation is crushed, and electrical current millivolts short out and no signal reaches gas control valve, so gas control valve keeps gas turned off to pilot tube.

If this is a tankless water heater, then open following link with troubleshooting resources and contact information for Rheem.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

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May 20, 2011 | Rheem 36" Water Heater Thermocouple Kit

1 Answer

Older heater, late-60's gas in mobile home. When furnace ignites it blows back and puts out the pilot light? Also, seems to be a delay when the thermostat clicks to come on til the furnace lights thus...


Check your exhaust pipe for blockage, Make sure pilot light is located just above or below the burner. Make sure that there is a good supply of air going to the burner and that the intake pipe (if it has one) is not restricted. A furnace that old needs to be replaced what ever you find. You could have a cracked heat exchanger.

Nov 06, 2009 | Cozy (W352E) Heater

1 Answer

Water wizard 10P pilot light keeps going out


If the thermocoupler is defective the gas to everything is shut off. The coupler is the bulb that sits ib the pilot flame If it doesn't heat up it will sense no pilot and shut the gas off. They don't cost much and are easy to change. Good Luck, Ned

Sep 17, 2009 | Bosch & Tankless LP Hot Water Heater

1 Answer

Wall heater new 07, worked great all last season, turned on this


there could be something stuck in the pilot assembly since you added a new tank to system. Check to make sure flame is hitting thermalcouple. Can you wait for a repair man to come and take pilot assembly out and clean. He will also replace thermalcouple. If you can't wait and you feel comfortable with taking pilot assembly out. Turn gas and electric off to unit then pull cover panel off. Pilot assembly is held in with two screws. Take tube off of gas valve and take off thermalcouple line off gas valve too. take out pilot assebly. Once you have it out take gas line off bottom of pilot assembly. There is a orfice in side make sure you can see through the orfice. You can also clean thermalcouple with a wire brush or sand papper. Reinstall pilot assembly make sure all fittings are tight. turn gas back on and light pilot. If everything looks good turn power on. Turn heat up run heater for a few minutes then turn heater down and let sit to see if it will stay on.

Nov 27, 2008 | Empire GWT-25 Wall Mounted Panel Heater

1 Answer

Pilot light keeps going out


Dan, Since you just had the tank filled and the heatewr installed a tinty piece of trash could have entered the pilot orfice. Un do the lower floor panel take off the pilot assy. Blow out the small pilot orfice. Blow reverse from normal gas flow to unlodge the debre. Re asemble and light.
If this dosen't work It may be the pilot air intake is too open causing the pilot to blow itself out.If thats the case close off the air adjustment some. It will be located behind where the flame exits the pilot orfice.

ljtomega

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