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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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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 furnace is blowing out cool air. i believe i need to light the pilot. i dont know what to light i dont want to blow up or anything:). what steps do i take to light it


Depending on the furnace you might not hace a pilot light. There are several types of ignition devices. One of the more common a pilot light the second being a hot surface ignitor that glows red much like the heating element in a oven. Its possible that the HSI has cracked and needs to be replaced. Look for it on the left or right burner tube in the combustion compartment. It will either look like a rod about 3" long or a flat M.

May 01, 2011 | Air Conditioners

1 Answer

Gas fireplace wont stay lit- it is a sealed unit so can taccess the pilot or gas holes in the logs. is it safe to remove glass panel?


Yes, removing the glass is safe, if you do it carefully, so as not to break it. Put it well out of your way, after removing it. In fact, removing it is the only way to access and service the Pilot Assembly and the Burners.

If the pilot won't stay lit, there are several things that can cause this on a Direct Vent Gas Fireplace:
  • The direct vent on the outside of the house is block or clogged.
  • Wind is blowing back through the direct vent, blowing out the pilot.
  • Low gas pressure
  • A dirty pilot.
  • The thermocouple and/or Thermopile (part of the pilot assembly) has failed.
If you can provide me with the make and model number of your gas fireplace, I may be able to furnish you with an Owners Manual, that will help you to continue to troubleshoot the problem.

Hope this helped you.

Apr 29, 2011 | Air Conditioners

1 Answer

I have a gas water heater, 6 years old. The pilot will lite and then the burner lites up, after several seconds the burner goes out. It won't stay lite. The other gas appliances are working. What's...


The Thermocouple, which is part of the ignition system may be loose, where it screws into the gas control valve. Or it needs replacing.

But, first turn the gas off to the water heater, allow the burner compartment to cool off and with a flash light do a visual inspection of the burner chamber. If you see rust or scale in the chamber or on the burner, it will need to be cleaned. You can use a wire brush to clean the burner, making sure you do it carefully and not too aggressively. Use a shop vac with a hose and crevice tool to remove the debris that was created when you cleaned the burner. Be sure to vacuum the burner ports well.

Look for the Thermocouple ... it will be in front of the pilot flame and look like a 2 to 3" long piece of copper. It will have a copper tube running from the bottom of it to the gas control valve. Does the Thermocouple look pitted and worn? Dos it have a hazy film on the tip? If so, use some very fine grit sand paper to polish the Thermocouple. You don't want to sand it, as much polish it. After you have completed that, use a cotton ball dipped in alcohol to wipe off the Thermocouple.

You remember the copper tubing I mentioned that runs from the Thermocouple to the Gas Control Valve? Trace that tuning to the control valve and see if you can loosen the connecting nut to the control valve with your fingers. If you can, it's loose and needs to be retightened. Finger tighten it and with an appropriately sized open end wrench tighten only 1/4 turn more. Turn the gas back on and light the pilot, following the lighting instructions on the water heater. Allow the control knob to remain in the pilot position for at least 1 minute before turning the control knob to ON.

The water in the tank has probably cooled enough that the burner should fire up. If it doesn't turn on the hot water side of faucet, to drain the tank some, so that the burner will fire.

Once it fires, take a stick match, light it then blow it out. Quickly place it next to the opening at the top of the tank where the Exhaust Vent Pipe is connected to the tank. If the vent is drawing properly, it should **** the smoke quickly up the vent pipe. If it doesn't, you'll need to check the vent pipe for obstructions or disconnections at the couplings along the pipe.

If the burner does not continue to operate properly after you have completed all of this. Replace the Thermocouple. Remove the one you now have and take it with you to a hardware or home improvement store, so that you can match it up to the ones that are available.

Hope all this solves your problem. Please let me know.

Feb 12, 2011 | Air Conditioners

1 Answer

Furnance on but wont blow heat. dont know anything about furnaces. in the middel of a blizzard with dropping temps. Not sure where or if pilot light is on.


Observe if the pilot light is on(in the burner) and see if the thermostat is pointing to the right setting and lastly see if the gas valve is in open position.

Feb 02, 2011 | Air Conditioners

1 Answer

Our Whirpool Gas water heater is leaking from one of the top water supply lines and the pilot went out. we tried to light it back on and it does not. before we can replace the leak should we continue to...


first repair the leak then remove the burner assembaly at the end of the pilot tube you will find a small orfice were the gas comes out for the pilot remove that and be sure it is free from debri and not clogged replace it when the burner assembaly is back in place and reconnected try to light the pilot if it still wont light as you are trying to light the pilot tap the side of the gas control valve (somewhat hard) if it then lights you know you have a bad gas valve if you are getting gas through the pilot orfice (not air if you have recently disconected the gas supply) and it seems to be blowing to hard you will need to replace the pilot assembaly at the end of the orfice as the small sheild also helps make the gas air mixture

Aug 25, 2010 | Whirlpool Air Conditioners

1 Answer

Burners not burning, pilot light is off. How do I start the pilot light?


There is no pilot on this unit. It is electronic ignition.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Mar 29, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

2 Answers

Intertherm furnace explosive burner ignition


Cheman, yes this is a real problem. Not only will it get worse, it could kill you and your family. If there is a blockage inside the heat exchanger where your technician could not reach, you would not do much better and may cause more problems if you do. If you continue to run this furnace, you will create Carbon Monoxide and it will kill you over a very short time.

Stick with yor technicians recommendation and get a replacement unit. Go with a direct vent unit and a higher efficiency than this old clunker.

Nov 19, 2007 | Air Conditioners

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