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My pilot light is on but the burners wont kick in. There is cool air blowing through my vents also

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  • Ken Bledsoe May 11, 2010

    Do you have a volt ohm meter? To check the gas valve to see if it is good.



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Look on your valve and see if you gas valve is on it may be on pilot if it s turn it to on

Posted on Mar 13, 2009


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2 Answers

My cozy floor furnace wont come on


Dec 25, 2012 | Cozy Heating & Cooling

1 Answer

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

The pilot won't stay lit on gas hot water tank.

Make sure thermocouple tip is seated inside the burner flame.
Make sure thermocouple is not overtightened. Finger-tight + 1/4 turn.
If the pilot lights, then ECO energy cut off is not tripped, but gas control valve might be bad.
Check color of pilot flame: it should be strong and clear blue.
If pilot flame is weak, or color of flame is yellow-orange: Clean pilot orifice and burner and combustion parts on yearly basis.
Clean air intake screen if applicable.
Increase air supply to water heater. Open a window and see what happens.
Check for adequate draft going up chimney using match under vent hood to see if smoke drafts immediately upwards.
Bleed air out of gas line.
Check gas pressure.

Open following links for troubleshoot resources:

Sep 21, 2011 | Water Heaters

1 Answer

When I light the pilot light, the heater comes on, but when it reaches a certain temperature and turns off, the pilot light goes out. Please explain very simply, I am not mechanical.

It could be a number of problems, so let's start with the easiest! When you light the pilot, is the pilot flame a strong blue color or a lazy yellow color? If it's yellow, it may not be heating the thermocouple sufficiently to keep it lit after the burners reaches temperature, so it shuts off with the burner. The solution is to clean the dirty pilot orifice using a can of compressed air with the straw attached (the kind you use to clean computer keyboards) With the heater pilot turned off, blow air down the flange where the pilot flame burns. If it has an air hole on the side of the pilot assembly, blow air through that too. Then relight it and if you have a blue pilot flame, see if that solves your problem and stays lit through the entire cycle. If not, go to the next problem:

You may have a dirty flame sensor bar. if your heater is so equipped, there is an small "L" shaped bar that protrudes near the end of one burner and senses the burner flame. carefully clean it using a small piece of sandpaper, being careful not to put too much pressure on it which might break the porcelain piece on the other end. Then wipe it clean with a dry cloth or paper towel and try lighting it again and see what happens. If that doesn't fix it, then try this:

It is also possible you have a defective thermocouple. Typically when they go bad, they won't stay lit at all, but sometimes they do light and go out later. Solution: Replace the thermocouple. It is the skinny metal bar that the pilot flame is heating. It is screwed into the gas control on the other end. Make sure it is cooled down before pulling it out of the pilot assembly. Don't worry, it doesn't have gas coming out of it and there is no electricity connected to it. Remove it and measure it and take it with you to the nearest hardware store or do-it-yourself center and they will match one up for you.

Other possible problems could be a strong draft blowing in the vent and blowing out your pilot, so make sure you have a vent cap outside. Or it could also be a blocked outside vent that is causing it to shut down, so check for blockage via a bird nest, dead bird, wasp nest, etc. Hope these help!

Let me know if you need more info or if one of these works for you! Douglas

Nov 22, 2010 | Williams (5009622) Ceramic Gas Wall...

1 Answer

Fireplace will start but shuts off in about 30 seconds

Here's a few things to look for. After you light the pilot and turn on the burner, look at the pilot flame. Is it still a strong blue flame and it is still heating the thermocouple? If the pilot flame is a lazy yellow, it may not be able to keep a good enough flame on the thermocouple to keep it hot. The solution? Turn it all off and let it cool down. Take a can of compressed air, like you use to clean computer keyboards, and using the attached straw, blow out the dust or spider web that's partially blocking your pilot orifice. Where the pilot flame is usually lit, blow right down that flange, as well as through the air hole that is on the side of the pilot assembly. If you do it right, the pilot flame should be a nice and strong blue color. Another thought. Is this a vented or unvented fireplace? If it's vented, make sure it has the oxygen it needs to burn by checking for blocked vents or opening a closed fireplace fume above it.

Nov 19, 2010 | Desa International CGCFTP Compact Heater

1 Answer

Pilot light will stay on until the burner shuts off. Seems to blow out the pilot each time the burner shuts off.

Need to check the vent tube for restrictions
and check to see if the blower motor air is not blowing out the pilot if it is the blower motor air blowing out the pilot nthe the heat exchanger may be cracked and could be dangers

Dec 01, 2009 | Vanguard International Blue Flame - Medium...

1 Answer

Pilot light goes out when burners kick on burnham

Get a toothbrush and clean the **** off the pilot, could be partially blocked. Change the safety thermocouple. Check the plenum for cracks. A cracked heat exchanger can cause this.

Nov 07, 2009 | Goodman GMS90703BXA Heater

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