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Pilot light will not stay lit

Cleaned out the inside of furnace and replaced thermal coupelar.

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Re: pilot light will not stay lit

Will it stay lit for a while? If so light the pilot light, Turn on the blower fan, and watch the pilot light. Look for any air that's blowing the pilot light around. if the pilot lite is moving around then you could have a bad heat exchanger. If so you should get a carbonmonixide detector and have your furnace inspected for this. One thing to check also is make sure the thermocouple is at least 1/4 inch into the flame.

Posted on Jan 28, 2008

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Heater is not igniting

see this causes and fix it. God bless you
f there is no heat, check the electrical service panel for a burned fuse or tripped breaker. Relight the pilot light (see below). If there is not enough heat, adjust the burner air shutter (see below); and clean the burner ports (see below).
If the pilot light does not light or does not stay lit, clean the pilot orifice carefully with a toothpick, test the thermocouple and replace it if it is faulty (see below).
If the flame flickers, adjust the pilot (see below).
If there is an exploding sound when the burner ignites, adjust the pilot to a higher setting and clean the pilot orifice and the burner ports.
If the burner takes more than a few seconds to ignite, clean the pilot orifice and adjust the pilot light.
If the burner flame is uneven, clean the burner ports. If the burner flame is very yellow, clean the burner; open vents in the furnace room to provide more air; adjust the burner air shutter.
If the furnace makes a rumbling noise when the burners are off, clean the burner and adjust the burner air shutter.
If the air is too dry, wash or replace the evaporator pad if you have a humidifier; test the humidistat; and adjust the water-level float to raise the water level.
If some rooms are too cool and others too warm, the distribution system may require balancing. Refer to the Forced-Air Distribution Fix-It Guide .

Oct 08, 2012 | Intertherm Heating Cooling System 15kw...

1 Answer

Pilot light will not stay lit; replaced the thermocouple, still no work. Replaced the W/R gas valve 36C04-222 on my Trane furnace. Still not working. any ideas? Could I have gotten a bad replacement valve?...

Trane unit ,same White -Rogers gas valve. I have replaced both the gas valve and the thermocouple . Have agreat robust blue pilot while the button is pushed in , let go and the flame does not stay lit . I checked the milly D C volts and have better than 20 . Is there a problem with the new gas valve or the couple not generating enough volts or is there a safty I do not know about that could be open ?

Dec 15, 2010 | Air Conditioners

1 Answer

I have a goodman propane furnace, model # GMPN080-4 that lights for about five seconds and then cuts off. It does this three times and then stops all together. Tried lightly sanding the flame sensor and it...

The goodman furnace will try and light three time before it faults out for safety reasons. Adjust the flame sensor so that it is closer to the flame or actually in the pilot flame. If the flame sensor is inside the pilot flame and still does not stay lit, your flame sensor is probably defective and should be replaced. You can get one at Ferguson's counter sales.

Dec 12, 2010 | Air Conditioners

1 Answer

The pilot light will stay lit. Go to turn on heater and stays on briefly and goes out The heater wont stay lit.

If the fan comes on and blows out the pilot light then you need a new furnace because that's the sign of a crack in the heat exchanger. Need a little better description. Do the burners light then the fan come`s on and then it goes out completely?

Nov 24, 2010 | Air Conditioners

1 Answer

I have an amana furnace and it will not kick on. When the switch is turned on the furnace will try to run but won't warm up and blow. Does it have a pilot light?? or a reset button??

Try this----turn furnace off at stat and unplug furnace for 10 minutes. Plug it back in, the combustion and blower motor may both kick on for 2 minutes or so or not. Turn t-stat to heat and turn up stat to highest setting. Hurry out to furnace and you should hear the combustion motor(little motor piped to flue) kick on, then wait for a "click" next you should see a glow from the igniton element, then another click, next will be the gas valve opening. If no ignition, it will try 3 times and then lock ur *** out, and just turn on the blower just as a precaution. If you dont see the glow plug glowing after the first click, replace the $20 glow plug and you should be good to go. The glow plugs crack, and this is what breaks the connection. If you gas valve has a knob, and says pilot----turn the valve to pilot, push down on the knob, light the pilot and hold down knob for 2 minutes to heat up flame sensor. Make sure the t-stat is all the way down or off. After 2 minutes of holding pilot knob down, let go and your pilot should be still lit, if it is, then turn gas valve to ON and then turn t-stat up to kick on furnace. If ur pilot doesn't stay lit, get a new thermal couple and replace it-$12 bucks. Good luck and let me know how it went.

Nov 06, 2010 | Air Conditioners

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I have a sv9500m 2674 tha has a sticker that says it has been converted to L P gas. The ignitor lights the pilot and the fan comes on. The pilot stays lit and the main furnace fan comes on but the burner...

Hello,If you cleaned the flame sensor and it is in the pilot flame,Try adding a ground wire from the pilot assembly to any close screw to boost the (pilot on) signal.Also if the valve has been sitting for a while give a tap once during (pilot on) to make sure the diaphram is just not hung up.I would hate to replace the valve and still have the same problem.

Oct 15, 2010 | Honeywell Air Conditioners

1 Answer

Pilot light wont stay lit.want to clean the orifice

You shut off the gas.
Shut off the power.
Remove the gas valve and burner assembly.
After cleaning and reassembly you must purge the system and use a gas leak detecting soap to verify no leaks before turning on the power.

Apr 15, 2009 | Air Conditioners

1 Answer

Can't find instructions on lennox gf 8 series furnace

Does it have a standing pilot light? On new units, there is an igniter and not a pilot. But if you have a standing pilot, you will move the gas valve to "pilot" and push down the red button while holding a flame under the pilot located by one of the jets. Once it lights continue to hold the button down for a minute or so and then release the button. The pilot should stay lit. Then turn the dial to the on position. That's it.......... If the pilot won't stay lit then the thermocouple is bad and needs to be replaced.

Apr 05, 2009 | Air Conditioners

1 Answer

Rheem gas furnace pilot lights, but no burners or fan

If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.

Jan 06, 2009 | Air Conditioners

1 Answer

Gas boiler won't stay lit!

The burners and pilot need to be cleaned.
Turn off gas and power, remove the burners and pilot. Clean with a brass wire brush. (Steel wire can be used but very carefully) Remove all rust dirt etc. reinstall and it should fire right up.

Dec 28, 2008 | Ruud UBHC Air Conditioner

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