So we went to turn on our gas fireplace Christmas day. The pilot light was out. I turned off the gas valve, turned it on to pilot pushed it in, and hit the light button. Pilot will not light. 
In line valve is in the on position. I took the front glass panel off, turned gas valve to pilot and pushed it in. Couldn’t hear any gas hissing out or smell any. Any thoughts? Bad gas valve? Bad thermocouple? 
did you make sure the gas valve was on in the machinacal room.
Can you get a lighter in there ? Piezo’s leave some things to be desired at times 
You should never “hear” pilot gas unlit, it is such a small amount of gas. 
Sure you dont have another valve in the line like in the basement that got closed? A bad thermocouple wont keep it from lighting but will keep the pilot light from staying on. Just replaced one for same reason. Its possible a bug or something could have the pilot pluged,it does happen.
I would also lean towards not getting gas before a thermocouple… if your holding the switch in for pilot, it should light as long as it is pushed in, even if the coupler is bad. If its lighting and not staying lit, then I would say either hold it in longer or it is the thermocouple.
what castaway said. i had a gas grill on the deck that some kind of bugs plugged up and no gas was flowing at all. cost me about $125 to learn to check that first before calling a professional. so check the orifice, stick a wire in it a ways to make sure it isn’t plugged
Where your gas line enters the house it should have like a manifold or valves plumbed in that split off lines to furnace,fireplace,waterheater etc. Probably located near your furnace or utility room. Maybe one got bumped or turned off.
A small wire or torch tip cleaner can be used to try to clean out the pilot.
Yeah, if there is a dried bug or something in the end of the orifice, using a flame like a lighter, will burn that out and start the gas flowing again 
Thanks hookem and the guys that responded.
I am having the same &*)$^* problem.
Now at least I jhave ideas and things to check!
Take something like a fireplace match and hold it lit between the pilot and thermocouple, press the pilot button/valve down and see if there’s any flame distortion, that may tell you whether you have gas or not, if you have distortion, try holding the valve down longer as you may just have air in the line.
Al
Yeah, I’m thinking it’s the thermocouple too 
a pilot will light with a faulty thermocouple, it just won’t stay lit after you release the pilot knob… I go away from thermocouple, with what he has said so far… I say no gas or restricted gas 
On my house I have a valve at the fire place and another in the laundry/mechanical room. If/when I turn the valve off in the mechanical room it takes a long time for the gas to get to the fireplace.
I just hold the start button/primer down and hit the light button every once in a while until it lights.
Good luck with it….hope it isn’t one of the bigger issues mentioned above.
When I used mine for the first time this year it did not lite right away either. I never shut off either valve (upstairs or in the basement) during the summer months. I have a wall switch to turn it on. I had to turn it off and then on a couple times before the pilot lit. I’ve had to turn it on/off a couple times since to get it to lite. I just figured it might be getting some air in the line.
Whats the model number, maybe theres an online schematic I can look at to get a better idea
Most everyone has chimed in what needs to be done. AJoe, there should be no need for the schematic just yet…
In-line gas valves first… If it hasn’t been burned for a long time, gas may have bled out and it takes a long time to get gas to the pilot using the pilot. If you can bleed gas back into the line, then try to light with either the piezo or flame.
Make sure the piezo is sparking at/near the pilot assembly. If its sparking and your getting gas, you may want to try rapid fire striking of the piezo…
With the glass off, you should be able to hear gas/air coming through the pilot. When gas finally get there you should be able to smell it as well…
If you can smell gas coming through, it should light at this point, if it doesn’t stay lit, hold it longer. Any longer than a minute or two, then its the T-couple.
If your not hearing the air/gas, then an orifice cleaning would be next.
See I told you, you guys had it covered… Time to go fishing!!!
Mark
Now that I reread his post, go to orifice cleaning first…
Ya know Mark, I completely forgot that this suject is right up your alley 
I’d make sure on the pilot gas before I cleaned anything.
Al
Thanks for your responses and ideas.
All inline gas on/off valves are open. The same line feeds my garage furnace. I did install the garage furnace last winter. Maybe a piece of dirt got in the line and made its way to the fireplace?! It worked last spring and the gas was never turned off to it. I think I even left the pilot lit.
I will take the glass off and see how hard it is to get to the orifice and get a long butane lighter to try and light it. Will also hold the pilot button in longer in case there is air in the line.
As a licensed plumber/gas fitter my professional opinion is that it is broken.
Is there a on/off switch to it? Might as well start with the easy stuff first.
Ill go back to my Friday night beer now. 
mine was covered by service plus. if you have it, call and see if it is covered
You must be logged in to reply to this topic.
