Gas Logs: Flame Won't Stay On - Why?

[@jamesortolano3983]

I’ll keep your warm if you let me … Gotta say thank you so much for all the editing, nd content for the education of us guys in the field . I do like your closing line as well 👍

[@SaltySvendo]

I’ve watched ever damn video on KZbin for this issue and your by far is the best and most informative. Thanks for taking the time to explain and show examples. It goes a long way

[@chiefcaptainmoroni1]

Thank you for sharing your info. I just turned mine on for the fall and the pilot burns, but the fire goes out after a few minutes. I'm letting the pilot light burn a while before I dig into it. I do want to say THANK YOU for not starting off your video with "hey youtubers" when I hear those words, I usually move on. Very professional and God bless someone who shares knowledge.

[@TaddyDigest]

thank you for watching

[@cymaticster]

Thanks buddy, helped me out! It was thermaccouple that needed to be cleaned!

[@TaddyDigest]

Glad it helped!

[@chipsun2504]

Today, today was a good day. Thanks

[@montirealme1598]

Thank you so much for the information on gas fireplace. I was able to get ours finally started. Your video is by far one of the best ones out there. 👏

[@TaddyDigest]

Excellent.You're welcome.I'm so glad the video helped.Thank you for watching

[@americusgill403]

Thank you Your first tip, fixed the problem. We now have fire

[@TaddyDigest]

awesome Glad to hear this 👏 😀

[@JuanEspinoza-zl1yy]

Hello from Las Vegas Nevada GOD BLESS YOU AND YOUR FAMILY GOD BLESS THE UNITED STATES OF AMERICA

[@TaddyDigest]

Thank you my brother

[@marymcfarland8561]

My pilot stays on but seems to be low and when I try turn heat on you can hear gas coming in but failed to ignite right away and your have a buildup of gas , T on time that I lit it with the buildup it scared me and I’m afraid to try that again, I did clean every 😊thing as you described and this is my problem, Thank you for what you do

[@anthonyrogers3566]

It's a majestic 360dcs with spark attached. Again, Yvan you for your time

[@anthonyrogers3566]

360dvs....

[@skippylippy547]

Thank you! 👍

[@TaddyDigest]

You're welcome

[@PhillipFrischman-vo8gm]

Thanks for the video. With the barge units. It was a good experience. Thanks so much...

[@TaddyDigest]

Glad you enjoyed it!

[@tech5298]

Here in California where people burn gas fireplaces all year long, the cause of flames going out is usually due to a dirty or weak thermopile. Otherwise known as a pilot generator. Or a millivolt generator. Anything over 375 is good, 250 is gettin lo, and 150 mv I think is too weak. 450 is like new.

[@TaddyDigest]

Very cool thank you so much for adding this knowledge

[@bastiontec5572]

We have issue with our vf5000cmn-2 fireplace. Pilot light up nice blue flame but when I turn the knob to ON position. The flame goes out. I took a reading of Thermal Pile and it shows 370. What could possible be wrong with my fireplace? Thank You in Advance.

[@jameswirth6299]

Great video. Not sure that is my issue as my pilot light never goes out. The fire is burning, it will get smaller and smaller (usually over 10 seconds of slowly getting smaller) then goes out, and after 2 or 3 seconds comes back full flame. Then it might go for 10-15 minutes to an hour, no issue. Then chokes out again.

[@chrisderifield6192]

Thanks for video. What could be happening if pilot stays lit, i light the fireplace, and then flames go out shortly after along with the pilot.

[@riccoc.8891]

I learned a lot thanks man...

[@budman4605]

My propane gas logs are not putting out as much heat as they used to the flame on high is nowhere near what it used to be and there's more odor coming from the logs than used to be what could this be? Thanks for your videos I appreciate you 👍

[@T-roy33]

Good info thanks very much. Question: ? I just replaced the 30,000 BTU unvented LP eater in my pole barn. If I turn it all the way up it should stay burning, but it shuts off after certain amount of time (the old one didn’t do that) (same model heater) I think the gas valve went bad and it was 8 yrs old so I replaced the heater. However I think the new model has a low oxygen sensor somewhere. Could that be causing this heater to shut off? I mean the building is 32 x 40 with 10 foot ceilings and there’s no way the building is running out of air. Even though it’s well insulated the garage doors aren’t sealed very well. Any insight on this? Thank you

[@mchestnut1970]

Just replaced my pilot light assembly and noticed that the pilot light stays lit (nice blue flame covering the thermocouple) but randomly the burner and flames go out and then wait a few minutes or turn the switch off and back on it lights the burner again. Does this sound like a faulty switch? It’s a Majestic fireplace DV42. Thank you

[@rickydavis1903]

Hello, will this therma coupler work with a PFS Ventless gas fireplace?

[@tranquiltransitionsllc5049]

The pilot light goes on, although I cannot turn the switch to the on position without the pilot light going out

[@mando_outdoors]

I have a gas fireplace “the Appalachian stove uv-3800”. I bought my townhouse 4yrs ago. The fireplace has never worked. Pilot will light and the fireplace will light but everything cuts out a few minutes later. I’ve sanded the TC and it would stay lit slightly longer after doing that but will still eventually cut out. Im not sure how to tell if the TC is adjusted/in the pilot flame properly or not. Or if the flame is correct or not. If that makes sense. I’m wanting to start using my fireplace during the winter. My neighbor does hvac and has a little experience with gas fireplaces. He says the tc isn’t the issue. But by my research to me it seem like that is the issue. Any help would be much appreciated. I’m located in North Carolina! Thanks.

[@valeriebartron5373]

My pilot light never goes out but my fireplace will randomly shut off or not turn on when I flip the switch. I replaced the switch on the wall thinking that was the issue. It didn’t fix the problem. I would override the wall switch by using an on off switch at the base of the fireplace. That worked for a while. Now it’s very random whether or not either switch will work. Any ideas?

[@francom6230]

Thermopiles do become weak,, 3-5 yrs of heavy use.. BUT If your pilot flame is too low, it wont produce 450mv-750max.. So clean the hole or adjust the "pilot adj" screw ..

[@muzical2u]

I got my pilot working, but when set to the ON position, I can’t get the large flame to light. Can I disconnect the remote ?

[@TaddyDigest]

yes you should be able too

[@jescassar18]

Hi i have a gas fireplace i changed the thermo couple but still after 5 min it goes off can you help please

[@romanfedynchuk1385]

Thanks for the video! I have a question though, so when i turn from Pilot to On position the light goes out. Is that a gas valve issue and it’s best to replace it?

[@TaddyDigest]

Could be thermocouple or gas valve

[@romanfedynchuk1385]

@@TaddyDigestthank you

[@b3pahunter546]

My fireplace gradually decreases and goes out starting at about 32 degrees. Sounds like water in the line freezing. Could it be?

[@TaddyDigest]

I'm not sure It could be if it's propane and the regulator is underwater.

[@donaldbrocksmith9508]

If your pilot stays lit and the log light but the flame goes out after a period of time is this still the thermocouple or could it be the gas valve going bad? Thank you!

[@bandboy27]

Why would my fireplace have a couple and a thermopile? I understand what the couple does, so what is the thermopile providing to the fireplace?....I'm from upstate NY!

[@aminacastro]

My gas fireplace has always worked- we clean it, nothing crazy, keep the propane tank full. Tried to light for first time of the season- pilot wont stay lit. Watched a couple videos, yours led me to find that my thremocouple isn't in the same place yours is- it's noy even getting hit by flame. I find it hard to believe it moved on its own seeing as it's screwed in place to where it is. Why could this be and what can I do?

[@mikevinson3549]

I have a gas fireplace that vents on the side of the house). Strangely, every time the wind is blowing outside the flames look like they are being sucked up into the vent pipe in the firebox itself. It happens to the point that the flames will shut off. How can this be fixed?

[@lyndagoodman5473]

Why does the flame stay lit when I use the switch at the unit but flickers and goes out when I use the wall switch?

[@susanpettinato634]

I had a service man out to troubleshoot my Heat-N-Glow SL 750TRC. The pilot would ignite, and a flame around logs was produced. Unfortunately, the log flame would automatically shut off after some time. The serviceman said my unit did not have a thermocouple: is it possible that the unit had worked without a thermocouple for the 2 years prior?

[@wms7745]

My fireplace lights ok but keeps puffing off and on as if the gas is going off and on. What should I change first. Thanks

[@TaddyDigest]

check the thermocouple first to see if 1 is in the flame and 2 if its dirty check out my how to fix gas heater video

[@jloutz]

@@TaddyDigest My fireplace is doing the same thing. It takes 5-7 minutes until it starts puffing so makes sense it's the thermocouple

[@JuanEspinoza-zl1yy]

How I can find out what number or style is the thermocouple for a mushroom heater.

[@TaddyDigest]

Check out the links I put below

[@truenorthmuskoka9077]

I replaced my entire igniter assembly which includes the sparker, pilot and thermopile. Sometimes after the burner lights it runs a minute or so then shuts off. I didnt clean the burner so Im wondering if thats the issue or is my gas valve the issue

[@matthewmcmullen8023]

@@truenorthmuskoka9077 this is what I need too inow

[@VernonWhitaker-n4p]

Hello, 24” non vented gas logs… so I’m attempting to light the pilot using a candle/bar b q type lighter holding the pilot button in and instead of the pilot lighting the hold unit comes on… I leave it on for maybe 30 seconds and I can see that the pilot is still is not on. If you could advise me as to what parts to replace, I would appreciate it.

[@TaddyDigest]

Replace the thermocouple

[@rfsoffice1250]

your ODS pilot is clogged and needs to be cleaned. which is much more likely the real cause of your shut down

[@BlackSmith222]

Hi I have vent-free natural gas fireplace. Pilot turns on. However, when I turn on the burner. Both Burner and pilot go off within 5 to 10 seconds. I cleaned the pilot with compressed air can. Also cleaned the thermocouple with a scotch. But it did not work.

[@bownutz76]

Hello sir. My gas logs will burn for about 5-10 minutes then just go out like the gas was shut off. Does that sound like a bad thermocouple? If so where can I get a new one? My gas logs is a Majestic unit.

[@bownutz76]

I have also noticed that when it goes out the pilot light is no longer lit.

[@TaddyDigest]

Yes definitely sounds like a thermocouple

[@bownutz76]

@@TaddyDigest thank you very much. I will try that. Do you happen to sell them if I have a model number?

[@robsullivan85]

My fireplace will lire, turn on and run for about 3 minutes and the. Go out. This a thermocouple issue?

[@TaddyDigest]

yes

[@robsullivan85]

@@TaddyDigest I replaced it but still going strong out after 3 minutes. Maybe a bad one? Maybe the wrong one? I just got one off Amazon.

[@anthonyrogers3566]

Hello, my name is Anthony. I have a Majestic fireplace that last year. I shut off the pilot light for the summer time. uperiod. Up until this time, the fireplace worked substantially. but next winner. I lit the pilot and attempted to turn it on and as soon as I. Switched the pilot to on the flame shut off. I reached out to a local company which Assured me it was the thermal couple and I replaced it. it still did not work. The company is now saying it's the whole valve and it will be around a $1000 to replace. any chance it could be the pinhole clogged with dust that you are talking about and if so, any chance you could walk me through. Cleaning up? It's a majestic. I will send the model number in another message to follow this one. Thank you for your time happy thanksgiving

[@TaddyDigest]

You should check out one of my most recent videos. He gives you more information on the problem with gas heaters like that As far as a $1000 that seems like quite a bit of money for that part.

[@anthonyrogers3566]

@TaddyDigest they said the new valve will run about 800.00 and the labor will be around 200. Thank you for your quick response. Cleaning the pin whole thing, is that at the valve as well or only the assembly? I will look for current vids to see of I find one that matches my issues directly. Thank you!

[@rfsoffice1250]

the thermocouple/thermopile DOES NOT send an electrical "signal!" it sends voltage (millivolts) real voltage that powers a coil creating a magnet

[@TaddyDigest]

An electrical signal is a voltage or current which conveys information, usually it means a voltage. The term can be used for any voltage or current in a circuit. from a battery or regulated power supply, this is ideal for electronic circuits. from a smoothed power supply, this is suitable for some electronics.

[@ThomasWalker-m2y]

O2 sensor, thermocouple, gas supply.

[@DavidKane-j5u]

always clear out air out of pipes

[@gaillam9574]

My gas fireplace pilot just went out. I don’t smell gas. Is it ok to go to bed tonight?

[@TaddyDigest]

Should be okay make sure you have the pilot valve off

[@gaillam9574]

@@TaddyDigest… thank you. I have a remote. Should I go into the fireplace and turn the valve to the off position?

[@TaddyDigest]

yes

[@gaillam9574]

@@TaddyDigest… the knob won’t turn. I think the wind blew it out as I feel cold air coming through when I kneel down to look at it.

[@tech5298]

Dude, yellow tip flame on pilot and its wavering a little. Dirty? Also, is that a pilot generator in there? Sure looks like one.

[@kazemashrafioun2492]

Pilot comes on fire logs comes on as well and runs for 15 minutes the everything including pilot shuts off. What can cause that

[@TaddyDigest]

I would replace the thermocouple could be losing signal

[@kazemashrafioun2492]

Tads I replaced the complete thermocouple assembly with pilot, and sensor. Now pilot comes on but won’t stay lit. Any suggestions?

[@stephenremillard9462]

Great video. Can you explain what is the purpose of the thermopile compared to the Thermo couple? In my case, the pilot stays lit, but i have the impression the thermopile isn't giving a strong enough signal to light the main flame. Can it be related?

[@stephenremillard9462]

Ok I documented myself and apparently the thermocouple sends a signal for the pilot light valve only. The thermopile on the other hand sends the signal for the main burner valve.

[@donaldallen743]

Can you find them in cold water heaters?😂😂😂😂

[@RobertTuck-vo8cw]

I have never seen a gas flame do what was happening in the first part of the video. It would have to be a surge in the gas valve or regulator. A bad TC on a gas valve will cause the pilot to not stay on. I believe that you were playing with the remote.

[@tech5298]

I remember discovering the remote when first working on one. The owner simply didn’t tell me. I was looking at a mysterious black box with t-stat size wires. Couldn’t figure it out. Then later during diagnosis I looked at it hard, saw it took four c cell batteries, and they were dead. Simple switch on it turned it to manual. I think hers actually did run on the thermocouple, and not the usual thermopile that I see with most heaters. Hey, one tech to another. Did you happen to see the instructions that he showed briefly right at the end of the video? Did you notice how the pilot burner head had two different igniters, a thermocouple, and a thermopile attached to it. Man, I just couldn’t get my head wrapped around it. Anyway, I was just wondering what your thoughts were on it?? 🎃

[@RobertTuck-vo8cw]

@@tech5298 I missed it. The wife called me to dinner. I looked back at it. I have not seen anything like it. Dual pilots and dual TCs - yes.

[@francom6230]

Fine video, I like the wife in the background.. but more info & less talk would be much quicker/better for viewers.. No Hate meant, ok bro.. but the banner was unnecessary... >Thermocouples are a single junction of two metals. They get hot, produce a voltage or "potential" >thermopiles or "generators" are simply several thermo couples wired together for more amps.. Like big batteries instead of little batteries.. Same voltage, more power.. >Low flame = less voltage, clean pilot hole or adj flame.. >check hi-temp limit >check ohms at pilot coil & gas valve coil.. Stay warm ya'll--