10 Common Reasons Why Gas Furnace Won't Turn On

[@WordofAdviceTV]

⬇ Other videos you may find helpful: The MOST Common Furnace Problem: kzbin.info/www/bejne/aXvSn5-VibGepqc How a Furnace Works - Sequence of Operation: kzbin.info/www/bejne/d4KnkICbma6eoqs Top 5 Furnace Problems: kzbin.info/www/bejne/imWsiKeBrpJgjM0 How to Find a Low Voltage Short: kzbin.info/www/bejne/apaXqKaoqqyGZtU Furnace Blowing Cold Air, How to Fix It: kzbin.info/www/bejne/pnvdgWSgr76Dp8k 10 Reasons Furnace Overheats: kzbin.info/www/bejne/aYuznp-qibdoiZY Don't Buy a High Efficiency Furnace: kzbin.info/www/bejne/bZWaaWanqJifl6M Best HVAC Brand to Buy: kzbin.info/www/bejne/eaqXZ6yKl9CBnqs How to Manually Light Furnace: kzbin.info/www/bejne/Y5Owq2R7o5V3ick How to Read Furnace Wiring Diagram: kzbin.info/www/bejne/aH62lpd3oM6lp9k How to Figure Out Age of Furnace: kzbin.info/www/bejne/pKWlepSPbNOWp7s 10 Yearly Furnace Maintenance Tips: kzbin.info/www/bejne/aHqqkIyQibdgoqc Thermostat Screen Blank - 10 Reasons Why: kzbin.info/www/bejne/rJqWgH2rfMuUl8U Furnace Error Codes Explained: kzbin.info/www/bejne/gGm9lpqjabl2oq8

[@Edward-ur5lg]

Flame sensor most of the time and if it's not damaged clean it up and bam back in business

[@MarkLunsford-td1fd]

Good information on here

[@MarkLunsford-td1fd]

Video vary good

[@nathanielkirby1871]

You just saved me on a freezing February day! I got all the way tO number 9. I tapped on the switch box and the light on my circuit board kicked on. I was so stoked! I'm now enjoying writing this comment from a warm home. THANK YOU!

[@orange_ash6902]

You the man jay! I watched you 6 years ago in trade school. I have worked residential and commercial and now I am an instructor at the very school that made me! I love you man!

[@WordofAdviceTV]

That is awesome!! You came full circle. Happy for you man, glad to here things worked out well!

[@bigd3104]

Have to add an addendum to #3&4 (thermostat) as I had this problem this week on a no heat call myself. Customer said they turned thermostat switch to "HEAT", and no heat. Upon arrival I looked at it and the switch was in fact on heat. However, on closer inspection, I noticed the display still showed "COOL". I flipped the switch to "OFF" then back to "HEAT". The display then showed HEAT. Problem solved, at least for now. I didn't replace the thermostat but suggested to them that if it happened again that I would advise having it replaced as the switch contact may be bad. And as you say, simple solutions are the best solutions! As always, enjoy your videos Jay. Keep up the good work!

[@WordofAdviceTV]

Oh interesting! I've never had that happen to me before, thank you for sharing! Good thing to be on the lookout for.

[@dgage1776]

It's insane to me that people are this inept. Like they couldn't even try to flip the switch twice before they call the HVAC guy

[@daviddassow8508]

Thank you. It was the batteries in the thermostat. Your video was greatly appreciated. Now I can go fix the blinking clock lights after turning on/off all of the circuit breakers. 😂

[@paulrozinski1488]

I’m sure that there will be a lot fewer cold people this winter thanks to this video. We will probably also see a spike in multimeter sales😂. All of Jay’s DIY videos are a great way for someone to get into the game WITHOUT getting in over their heads. I still remember the first one I watched on sequence of operation . It was priceless. Keep up the great work, Jay

[@WordofAdviceTV]

Thank you sir!! I appreciate the positive evaluation of the channel and am happy to be able to help many folks fix their own appliances/hvac! I appreciate you stopping by for the new video, may you have an amazing rest of the week! God bless you and yours!

[@standdownrobots_ihaveoldglory]

Liking & commenting for the algorithm! Videos like this tend to get played in a panic & I forget to share my appreciation so I’ll do it in advance! Really truly, the home & auto basics videos are one of the best things about YT & your channel and others save us real money & stress!

[@WordofAdviceTV]

I appreciate you good sir!! Thank you for leaving a good comment, stay warm this winter!

[@adrianbanks8478]

Thank you sir, I watched all steps and to my luck it was the power switch!!!! Apparently I have some wires dangling by my power switch and I must have pulled the wire on accident and turned the switch off. I tested all steps and it brought me back to the beginning lol By the way, love the “dad joke” at the end😂

[@Raisingthetrotters22]

I just want to say thank you so much! It was so cold in my house and I couldn’t figure it out to save my life you just helped tremendously

[@sheilam4964]

Another great list of things to check on a major appliance to troubleshoot for problems before calling a Repairman. I saved this to refer to should I ever need it, instead of writing all the steps out. Thx for filming this.

[@WordofAdviceTV]

You're welcome! Glad to hear you found the video helpful.

[@Eddy63]

Excellent tips Jay ... We recently had a fire at the shoe factory ... Many soles were lost Aloha my friend

[@WordofAdviceTV]

Thank you Eddy! Haha I love the shoe joke. How did Robin Hood tie his shoe-laces? With a long bow! Aloha indeed my friend, stay warm out there!

[@30rdmaga]

UEI should sponsor me I leave so many of their temp probes behind in ducts. 😂 Great video as always

[@WordofAdviceTV]

Lol I know right? Those are so easy to forget! Thank you. I appreciate you stopping by, have a killer new week man!

[@30rdmaga]

@@WordofAdviceTV You too!

[@stevesingleton3133]

I'm glad to see the old Jay is back. Please continue to explain 1st. Then show each Part and component.

[@nez1808]

You saved Christmas. My furnace shut down two days before Christmas. The fan stays on unless I shut the power to the furnace. One site stated that if fan continues to run it might indicate a faulty control board...so I research and find a new board on Amazon. I figure that I can replace the board fairly easily...if that's the problem. The board is providing an error code of 33, which means that it might be a problem with the heat sensors, so I decide to bite the financial bullet and call a technician. EVERYONE is either busy, or won't service furnaces that they didn't install. One tech suggests that it might be the limit switch. Ah ha!! I remember that your video went over a possible way to unstick a stuck limit switch. I gave it a few sharp raps, turned on the power, and...lo and behold, the LED light is consistently on...no more error code. Heater works great now. No more sitting by the fireplace using coals for heat. Thanks for saving our holidays.

[@holtrussell]

Jay!! Long time my friend! So happy to see your channel doing well and growing. Hope you and your family are well! Congrats on the UEI partnership. I love their equipment and plan to use them (and recommend them highly to friends / coworkers) exclusively now given your backing of their products. Take care and thanks again for the GREAT information!

[@WordofAdviceTV]

Hey bro!! Long time no see. Hopefully you and yours are doing well on your side of the world. Thank you, family and I are doing great! Recently had our 2nd son. I am actually not in an official partnership with UEi but I do enjoy their products! I asked them to send me a multimeter for my recent multimeter tutorial video and they sent me a hat and sticker along with it. I like the hat so I wear it around. Glad to hear you are loving their equipment too and I'm sure they would love you for promoting their tools. 😄 Glad you like the videos, take care my friend!! P.S. Just emailed UEi and asked them about a more serious partnership. Thank you for your comment, it prompted me to do so.

[@lorddabber3016]

You are doing God's work here, sir! Also, an additional common reason may be that the natural gas shutoff to the furnace was accidentally turned to be shut off (maybe kids were playing around with it).

[@konstantinusstoyanov9749]

Very timely, winter coming up

[@WordofAdviceTV]

Yes! Winter is coming. 🥶

[@johnpa287]

Thank you bro. Watched you tutorial and I fixed my furnance ❤🎉

[@WordofAdviceTV]

Happy to hear you were able to get your furnace fixed! Stay warm man!

[@rzh3443]

Thank you ! Another easy thing to check is the inflow air and outflow exhaust pipes to be sure they are now blocked ( snow, insects, etc.). My neighbor's AC would not go on. Company came and pronounced the thermostat bad. I lent him an extra thermostat, known good, and still no AC. I went to circuit board and tested the 3A fuse- blown. What happened was their painter did not protect the wiring at the thermostat ( or shut off the power at furnace) and it probably shorted the circuit. 10 seconds later: AC.

[@WordofAdviceTV]

Thank you for sharing the experience and another thing to check. Much appreciated!

[@jeffpurtell5676]

You still do great videos. And the jokes are funny too.

[@WordofAdviceTV]

Thank you! Glad you liked the jokes! 😄

[@jin8684]

Just a word of advice, a breaker doesn't trip for no reason. If the breaker is actually tripped, I'd open up the furnace and check all the wires before resetting. 🙂

[@WordofAdviceTV]

Yes! I did not talk about that in the video but you are right. Especially if the breaker trips again after getting reset.

[@izzymoney85]

What would cause that breaker to trip guys?

[@abdokhedr2488]

@@izzymoney85 It could be short circuit because of wires insulation is gone and wires touching each other. Ground fault or overload

[@robincordero3]

@@izzymoney85 it could also be a bad breaker

[@MOBTIESBULLIEZ]

Hey guys I’m freezing right now and we all sick my unit only trips when I turn my heater on my ac works fine but if I turn my heater on after like 5 minutes thermostat goes blank and everything turns off and if I reset the breaker everything works again but happens again any idea plz ?

[@sohailinayat5336]

Excellent job 👏

[@WordofAdviceTV]

Thank you! 🙂

[@MF-jz2br]

Fantastic and comprehensive video! Thank you so much!!

[@brucemoriarty9964]

Thanks again Jay.🙂👍🇺🇸

[@WordofAdviceTV]

You bet! Thanks for stopping by for the new video!

[@tundeajibade5420]

Thanks!!! This just saved me. It was the furnace door switch.

[@netalekh6443]

👍👍👍God bless you!

[@WordofAdviceTV]

Thank you! God bless you and yours as well!

[@rodrobinson6111]

I have a question for you. I know you have to turn the power off, but is it necessary to turn off the gas when cleaning the burners? I appreciate your response. Thanks again for the informative videos.

[@WordofAdviceTV]

You don't have to turn the gas off when cleaning the burners, unless you are taking the gas piping apart.

[@ronkrodel2422]

Great job

[@WordofAdviceTV]

Thank you!

[@happytenants]

Thank you so much for your advice. Got my furance working again about changing the ignitor and cleaning out the suction drain

[@izzymoney85]

What a great video I appreciate you Jay keep them videos rolling my friend 😎🫡😎

[@NashPotatoes97]

Saved yet again by youtube. Weak battery in my thermostat. Had enough to kick on the AC but not heat.

[@Edward-ur5lg]

@@NashPotatoes97 yep I had to go out to calls for dead thermostat batterys more than id like to have but money is money if you don't know what to do...tip if you have a thermostat thats not a dial type and is square front of it pops off there is 2 AAA batteries in there replace it with new ones and carefully replace face cover first thing to check and usually the issue..and if that's not it and the heat it not coming out probably the flame sensor which isnt to hard to do if you have even basic do it yourself skill 99% of the time they just need cleaning that is another one I have done many times too

[@westbccoast]

Awesome video thank you

[@albertiskandr6612]

Good explanation thank you 😊

[@Morphis]

Thank You!

[@WordofAdviceTV]

You're welcome!

[@jimbarron8688]

A quick check between R and C will eliminate most of the early checks... plus it's safe because you're working on the low voltage side. Finding 24V between R and C with a meter set to voltage means breaker, customer switch, door switch (including all wiring) and transformer are OK. Call for heat and the flash code if present will direct you to the fault. If you don't get 24V between R and C you will need to check all the stuff in the first few checks.

[@WordofAdviceTV]

Yes! You effectively made this process 10 times easier. 😄 Thank you for explaining. I think it was still good that I showed each individual piece but doing it the way you suggested is way more efficient.

[@jimbarron8688]

@@WordofAdviceTV nothing wrong with being methodical and you were very good at doing that. For an educational video your explanation is more thorough and might be necessary if things aren't playing nicely. My quick check was how I explained troubleshooting to my students but only after they got the whole lesson as you explained.

[@belindanashvillehere6822]

Very helpful video

[@garyreysa4729]

Nice video - thanks. On the two gas furnaces we have had the flame sensor failed - must be pretty common? I was able to fix it by cleaning with steelwool until I could replace with new.

[@WordofAdviceTV]

That is the most common furnace problem. A dirty flame sensor. It's literally just a steel rod so cleaning it is enough, no need to replace unless you simply prefer to have a new one. If you're interested at all, watch this video and you will learn more about the flame sensor/how it actually works than you ever wanted to 😄: kzbin.info/www/bejne/Y4Kuea1ngttse9ksi=Jsf2fverkNuNJmIQ

[@ROLA-oh8ni]

Thank you so much.

[@joro8604]

Great info

[@salahathamnah1966]

Very helpful video❤

[@Brian_L_5168]

For reason #7 & above, simply call Jay and he will take care of it 👍. I agree the door switch design makes ZERO sense and should be permanently taped. As always, you are an amazing educator & inspiration 💯

[@WordofAdviceTV]

Lol, thank you sir! I can only agree about the door switch. 😅

[@treepop1550]

Great helpful video !!

[@ytmndan]

Another issue that can arise after servicing is that the tech might disconnect the white wires from the control board, and then not tighten them down before leaving, resulting in your system working fine for a few hours before the temperature dropping overnight after the cables wiggle out. Don't ask how I know. Luckily it's an easy fix.

[@pbranch6821]

You sound very knowledgeable on newer furnaces but my furnace is probably maybe 30 years old or more. My thermostat is the little gold round guy with not digital...analog. Trane XE70. Some tips will help but after you started talking about themostats and batteries I can't follow. Hope theres more for old furnaces.

[@JohnSmith-wt7qk]

So what makes the blower come on when the main limit is tripped, how can I trace this on a wiring diagram? Awsome channel tysm

[@matshagstrom9839]

Just great!!!

[@jacobbowling263]

Hi Jay, I hope you’re doing well and I am not going to bore you but I’ve had a rough week last week because my pet bird passed away and the week before that happened my passed away his funeral is today. I am doing a lot better now but I went through 4 days of depression and it was not fun. Awesome video I wonder if you could a video where you do the same video except it’s for an electric furnace. Take care.

[@WordofAdviceTV]

Aloha my friend! Sorry to hear about the pet bird. We just got two parakeets for my son and we had a quaker parrot before so I know it doesn't take long to get attached to them... May you have the strength, peace, and support to endure this hard season in your life. God bless you and yours! I currently live in Hawaii and I have yet to see an electric furnace here. I would love to make the video that you suggested but it will probably have to be done some time in the future.

[@Noname-nx5ds]

Hi! What does a constant blinking red light mean ?

[@WordofAdviceTV]

If you look at the back of your furnace door, there should be a label that lists what all the error codes mean. On top of that list it should explain what a blinking red light signifies. It could mean a few different things depending on the brand of your furnace. It could mean normal operation, furnace is in standby mode, soft lockout, or a safety switch is tripped.

[@Noname-nx5ds]

@@WordofAdviceTV thank you

[@kouamoua8053]

thanks.

[@robertmcmahon2744]

Another good video!👍🎉 However, I think I'm going to have to send you some better jokes...😉...😆😁😂🤣

[@WordofAdviceTV]

Thank you! Haha and I always welcome joke submissions! 😄

[@emmafranklin2916]

Good morning on my furnace I'm making it all the way to the pilot light lighting up but after that it shuts off and my light on my computer does not flash nor does it stay on. And my flame sensor is new . Do you have any advice for me. Please and thank you

[@feraladdicts]

I’m struggling to get heat & a/c on a Carrier infinity unit that was recently worked on, at an $800 expense. Can you help with some wiring questions, I’ll scape some $ together if I can’t talk to someone to see where the last guy changed wires.

[@austingibson4907]

My led is blinking on the control board so it's getting power but nothing else is coming on. Any idea what I should look for in this case?

[@apexsw20trd]

I have a old carrier furnace. The furnace turns on and blows hot air for 10 minutes. The. After 10 minutes the furnace shuts off and throws a 14 code error. On my furnace manual it says for code 14 refer to 34. It has a list of things to check like, gas valve, dirty flame sensor, blocked vent, I checked all these but the problem still persist. Would you know what’s wrong with my furnace ?

[@harrydickson4575]

👍👍👍

[@WordofAdviceTV]

👍🙂🙏 God bless you my friend! Have an amazing new week!

[@dakotabu]

Really understand, but the Lennox Gas unit won't work when the motor is stuck and won't run. I replaced the new motor. Now it is not working. Is the ignitor module not working? I looked at this ignitor module's LED light. The LED light is nothing. I use my digital meter and point to the transformer- 120VAC is okay, and 24VAC is good. is the Ignitor module bad? This FENWEL ignitor module is too expensive, about $500.

[@MarkMorgen]

Check air filter first... cheapest solution!

[@ranger178]

i had the switch off problem on a water heater I put in. this woman's kids were standing around in basement watching me put in water heater they didn't speak English. so, after I left, they thought water heater was new toy for them next day i get call no hot water the kids turned knob to off on water heater had to get interpreter to tell mother to keep kids away from water heater and out of basement.

[@adem7938]

Let me add in Bad inducer motor Bad igniter Dirty burners and flames sensors Bad blower motor and capacitor 😊

[@dcalyx]

Sometimes the gas company will kill the gas in the neighborhood to fix something at a neighbors home….. So you forgot to mention the most obvious, the “no pilot light” thing on the gas furnace. It happened to me. 🤦‍♀️

[@scpatl4now]

I'd say if your furnace is tripping the breaker...you have a bigger problem than the furnace just not turning on

[@Samlol23_drrich]

I usually just reset my breaker every five minutes or so until my house is warm. Is that a problem?

[@scpatl4now]

@@Samlol23_drrich Um, you might want to figure out why that is happening (I assume you are joking...at least I hope you are joking) 😆

[@Samlol23_drrich]

@@scpatl4now yes, I was joking But thanks for the concern.

[@WordofAdviceTV]

@Samlol23_drrich 😄😄 I always get a kick out of your witty comments lol. I erroneously assumed that it is common sense that if the breaker trips again after being reset, then you know you have a problem and it's not just a nuisance trip. @scpatl4now I should have talked more about this in the video but I appreciate that you at least brought it up in the comments, thank you!

[@Samlol23_drrich]

@@WordofAdviceTV such great videos. Clear, educational, and to the point as always. I’ve learned so much from you. Thank you!! My comments, on the other hand,are far from witty….they’re just juvenile and immature, (like me). but I do appreciate the call out! Until next time……..Rich

[@mist4926]

please answer my breaker was tripped. tried resetting but trips again immediatly

[@WordofAdviceTV]

This usually means that you either have a bad breaker or there is short somewhere. To begin with it would be good to narrow down where the short is. I would start by turning the breaker off (and verify that it is off with a multimeter or voltage detector) and then disconnect the power wires going into the furnace. Make sure the disconnected wires are not touching any metal and turn the breaker back on. If it still trips, then you know the problem has nothing to do with the furnace. If it doesn't trip, then you know that the furnace is shorting out somewhere inside the unit.

[@johnspurrier0001]

Furnace won't kick on... If I turn the breaker off/on it turns on and heats up the home. But, then it will not kick back on unless I turn off the breaker and then turn ot back on. Manually repeat to keep the house warm.

[@brent0420]

I'm having the same issue

[@aldinm1988]

reason 1. reseting the circuit breaker worked for me but what caused it for me having to do this? something must be wrong

[@DiorCartel]

Them jokes tho ❤

[@avinashdesai0206]

Mercury in the circuit Board

[@PazoShannon]

Way above my pay grade

[@perisr6402]

My furnace is blinking two time( flame failure lockout) what do i do ? What do i check ?

[@parneypots]

👍👍