How a Furnace Works - Furnace Sequence of Operation

How a furnace works, the furnace sequence of operation. Or in other words how a furnace works and in which order each component is energized. Knowing this will help with furnace troubleshooting, diagnosing, and repair. I also go over the most common reason why a gas furnace won't turn on. When you know in what order the furnace starts up, then you will be able to narrow down your potential problems. Also, there are many different furnaces out there and though the sequence stays very similar from furnace to furnace, there may be some differences. And one more side note. If you turn the power off and on with a Bryant or Carrier furnace, the first thing that will happen is the blower motor will get energized for a minute or 2 to do a pre-purge. After that the sequence would be the same as any other furnace.
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#wordofadvicetv #furnace #heating #hvac #airconditioner #airconditioning

[@WordofAdviceTV]

⭐ More Videos That Can Help: Top 5 Furnace Problems and How to Fix Them: kzbin.info/www/bejne/imWsiKeBrpJgjM0 Furnace Parts and Functions Explained: kzbin.info/www/bejne/nX-Qhnyoa51latk Thermostat Not Turning on Heat: kzbin.info/www/bejne/ZmaXlIWpoMqba80 Blank Thermostat Screen: kzbin.info/www/bejne/rJqWgH2rfMuUl8U Furnace Error Codes Explained: kzbin.info/www/bejne/gGm9lpqjabl2oq8

[@dominiqgarcia1515]

I am new guy to Trade , My colleagues were not nice to me and always complain to my boss that I did not do good job, I stated to hate trade and trade guys but your videos like the light in my life and I really benefit your videos . God bless you , You are the man 👍

[@hobartzardozerton3957]

You’re a lifesaver, my heartfelt gratitude. My 90 year old dad was cold and we’re broke and I was able to figure it out thanks mainly to you.

[@Themaingrange]

That's awesome

[@theskykelly]

I've lived in my house for 20 years, and in just a few minutes now understand how my furnace operates. Thank you, Jay, for a great, easy-to-understand educational video!

[@hayasyeda6062]

Q

[@learnjcbskidsterchickensga7594]

He is a great instructor!

[@reneehazel3545]

Qt

[@trevorwilliams5621]

Just started my heating and cooling journey and this guys videos are better than the guy training me 😂😂😂

[@andreeriner811]

Jay buddey I like your vidios. Some of these guys you watch come off with like an arrogant attitude. I can’t stand that, you don’t have that. Good for you never change. None of us know everything. I’m 57 years old and I’m still learning. No shame in that. God bless keep up the good work and never change.

[@gregdoh]

People like you posting these videos on KZbin has saved me tens of thousands of dollars over the past 10 years between my business and home. From car repairs, to building walls, painting, repairing washing machines, servicing water softeners, repairing water heaters, and servicing my HVAC systems. Just last week I opened my RTU's heating panel to check for cob webs and an hour later realized i lost my heat. Turns out the wind blew the flames at my burner and tripped the limit switch which I learned from one of your other videos. I now know to turn the unit off before opening that access panel on a windy day (or just in general). This video was fun to watch to learn a bit more about how these work. Thanks!

[@learnjcbskidsterchickensga7594]

If all repairman were honest…..but this is not a perfect world!

[@davidwang3638]

Just when you think his videos couldn't get better. Mr. J did one with a troubleshooting segment in the end. It's like a little test after a lesson, really helps with understanding the concepts better. Which makes practical applications to real problems easier. Man, is this guy good or what?

[@prashanthlv]

I wanted to thank you for your videos and helpful troubleshooting steps. I was able to fix my furnace going through your video. THANK YOU and GOD BLESS!!

[@CraigHollabaugh]

"I hope you found this video helpful." That's an understatement, it completely explains and demonstrates common normal and fault conditions. Then references documentation for further explanations. What else could someone want? Thank you, I now know I'm off to check my Trane's flame sensor.

[@WordofAdviceTV]

You're welcome! Glad to hear the video was very helpful! :) Thank you for watching and commenting!

[@CraigHollabaugh]

@@WordofAdviceTV Funny, actually in the basement now. Thanks again, you're producing exceptional videos, making friends to many, hated by a few. Have a great day.

[@edwingarcia315]

Craig Hollabaugh I agree ! He was very helpful

[@robertalequin921]

I tried your expert advice on my non working furnace and it worked. more importantly you saved me about 200.00. thanks you are the best tech in you tube that I have found. Excellent teacher!!

[@nathanielbennett1014]

This was a fantastic video. It enabled me to troubleshoot my gas furnace, my igniter was bad, it cost $20 and $5 to ship, and it was easy to replace. Now my furnace works great.

[@alfonsogaitan3941]

Dude you just saved my life in hvac school with this video!! Thank you so much keep doing what you're doing.

[@WordofAdviceTV]

Glad to hear it! Good luck with school man! :)

[@timhutchinson3264]

Very well-explained. Not too technical but not too simplistic, either. Thank you!

[@WordofAdviceTV]

Glad to hear the video was easy to follow! Thank you for leaving a comment!

[@brandonwebb2100]

@@WordofAdviceTVI have a problem with the air and heat coming on the thermostat wiring is correct but it doesnt have a jumper wire and it only has 4 wires but the fan comes on but that's it and it's a Honeywell sliding non programable one any advice?

[@hg2.]

Yes, fine video, well done. Like Tim says, you have an excellent progression from the simple to the more complex. Excellent teaching skills.

[@learnjcbskidsterchickensga7594]

@@brandonwebb2100 did you find an answer?

[@justinwallace390]

So straight forward without side stories or distracting background events. Thank you very much for taking the time to make this and share with younger techs. A+

[@probablynotabigtoe9407]

He didnt tell me to like and subscribe.

[@pablojimenez7810]

Bro. You have been a blessing since I started watching your channel and videos. I'm a painter and drywall contractor but I just wanna learn a new trade and you have really motivated me to focus and learn as much as possible about HVAC. I really like how you have the patience and time to go through just about everything and answer questions and different problems and situations you encountered. Thank you so much for doing this and Motivating me.

[@WordofAdviceTV]

You're very welcome brother! Glad to hear that the videos have been inspiring to you, may God bless you in your career and in your studies!

[@aldretesaul1]

Thank you for this video! I have been working on heat and air company olmos three months and my trainer always ask me about the heating sequence, now I have a good answer!!!👍🙏🙏

[@crimson-rk6di]

I just moved to a place where gas furnaces are the norm. This really helped my understand how the operation of these units work. Thanks a lot.

[@Holiday48000]

You are fantastic, thank you for explaining the sequence of operations for the home furnace.

[@norabder1008]

I just wanted to let you know that I fixed my unit within 10 minutes after watching this video!!! Thank you so much! Your videos are awesome and very helpful!!!

[@boashna]

sequence order of this video was excellent. If I could add since ignitor replacement is a common failed part , be carful not to touch the heating element because the oil on your hand will cause it to heat unevenly and crack and you have to replace it more often . I had one to last only a year and the on I got now is 15years old.

[@learnjcbskidsterchickensga7594]

Another video channel, hvac guy said school taught him to always wear gloves while working on furnace.

[@billh8559]

Excellent video…..you made it so easy to understand the functions of the furnace. Thank you!!

[@jlxm4886]

Awesome information! This could be in an official HVAC training class and it would be worth the moments of your time. Great job 👏

[@luislujan8715]

I loved his video. The furnace part is cool. But what i loved the most is how he explained his reasoning. The logic he explained is the key to troubleshooting so many things.

[@keithhoward8651]

Your way of explaining things has helped me so much. I’m truly thankful for all you do. Awesome channel. Keep them videos coming.

[@WordofAdviceTV]

Thanks Keith! Glad to hear the videos are helpful! :)

[@charliecamen]

Very informative. You probably saved me between $500 to $600 service call for a fix I completed myself by watching your videos. It is very obvious you know your trade very well. Wish I had a serviceman like you in my area instead of getting scammed all the time.

[@learnjcbskidsterchickensga7594]

Exactly!

[@Newtire]

It's guys like you who help out guys like me and I thank you for your help! You are a lifesaver! I worked on automatic and standard shift transmissions all my working days. No doubt they are complicated but if there was a simple problem, I would always help when I could. It makes for a good customer for life if anything else comes up. They tell their friends too-word gets around. Thanks again man!

[@WordofAdviceTV]

You're welcome man!! Glad to hear the videos helped, it's always nice to be able to help out others!

[@NoOne-fe8qt]

Thank you. Your videos helped my diagnose a problematic igniter and replace it. First timer DIY with HVACs. So much appreciated, as it saved me a lot of money.

[@MikeAnnarose]

I am pretty handy but a first time home owner and you have helped me so much with my 15 year old HVAC system. I know I need to probably replace it but I'm saving for now. Last year was an igniter and this year first time I tried to start the furnace I had a blocked switch. You've saved me hundreds. My in laws who live with me think I have hands of gold..Thanks to you! 🙏

[@lonesometinman3147]

Thanks for All your help . I know guys in the trade who seem unwilling to help until you mention $.$ You put out lots of information for free - and its greatly appreciated God bless you Amigo

[@stevenshane4943]

Very helpful. My furnace was in lock-out mode because the flame sensor was dirty. The LED had one flash saying it was locked-out. Didn't know why until the time-out was reached and flame came back on then right back off, which told me from previous experience that the flame sensor was dirty again. Great job in creating this video.

[@learnjcbskidsterchickensga7594]

Good to know…I am surmising flame sensor should be “cleaned” annually.

[@ilyaskhan-zf1io]

I am personally thankful to you for your priceless product knowledge tutorials on HVAC understanding and diagnosing. It really helping out thousands of DIY people like me. God bless you Ilyas

[@sharpshootervez3859]

I just purchased my first home and everything is new. My furnace was blowing cold air. So I turned off the furnace and took the panel to off to find out one of the igniter wires was not connected. This video helped me find the Sequence of operation to find the problem thanks bro I appreciate it.

[@lawrencewalker2963]

Thanks for all you do Dont know how ppl cant love THIS guy.

[@bunnymanmoe8819]

Thank you for everything you share. I just fixed my furnace because of your teachings. I look like a superhero to my family now.

[@silviasalinas7236]

This was very well informative, way better than anyone else has explained it to me. Very thorough and easy to understand, appreciate it!

[@davechege6203]

Best video I have seen on explaining the hvac firing sequence and how/to troubleshoot

[@MrBuddy511]

Thank you for your excellence video. Not many people can a teach.. but it takes a special one to be the best . You are the top knot

[@Carlossoto-rg5hh]

Great video , with clear speaking 👍 . I am an HVAC installer in texas, I am watching this to get better understanding of sequence of operations.

[@CB-bl8sp]

The people who disliked the video are the HVAC technicians.

[@joshuarohrer3261]

I’m a hvac tech and I think this is awesome. Knowledge is power. I always find it easier to help people when they have a basic understanding of what’s happening. They don’t feel like you are taking advantage of them.

[@AlmightySmokeymontana]

Wrong I’m an hvac tech an since we don’t know everything some of these videos are very helpful, especially for those just entering the feild straight from trade school

[@stoneyj1a1]

This guy is very informative. Thanks man. As a fairly new homeowner I really appreciate stuff like this.

[@cjshvacjourney4034]

Thanks for the information now I can do my 1st heating maintenance tomorrow alone at work!

[@ericmcdaniel4029]

My school is using your videos for our online portions of the classes. That’s how good these are.

[@dfrey574]

I'M SORRY BUT THERE ARE SEVERAL IMPORTANT SEQUENCES MISSING IN THIS VIDEO!!!

[@mbehning1]

For two days I have been researching for answers on my my startup process was failing. I found your videos the most helpful. Within 5 mins of this video I had a good understanding of my problem and what to check. I can't express how much this helps. GREAT WORK!

[@WordofAdviceTV]

Thank you! Glad to hear the video helped you figure things out! I appreciate you coming back to leave a comment too!

[@learnjcbskidsterchickensga7594]

We appreciate you taking time to comment. 8-)

[@fredost1504]

You are the Yoda of Furnace sequence of operations. Extremely helpful dude. Watch your back: the HVAC community is going to hate on you. You took all the mystery and shazam out of furnace operations. Thanks again bruh.

[@patrickkray6721]

Great video, I will definitely recommend to all my friends. Thank you for posting, greetings from Cleveland

[@chrisdiaz1830]

I like the vid. One thing I’d add about the flame sensor. Up to a hundred volts can be sent through that flame sensor wire. You don’t want to make a habit of handling that with the power on.

[@googlerep366]

When I first started working on furnaces this would have been the perfect video to really get a idea of how a furnace functions and this alone helps everything as far as troubleshooting and understanding how to troubleshoot a furnace for the most part. Thank you so much for taking the time to be so precise about everything you talked about.

[@andrewwong3565]

Another great video. I feel I can fix my sons heater. Thanks again👍

[@alanburg9506]

I've watched a few of this guys videos, without question the best I have found so far. I have been in the construction/facility management business for 20 years and this guy might be the best teacher I have ever had

[@WordofAdviceTV]

Thank you Alan! Glad to hear that it was a good video. I appreciate you leaving a comment!

[@mhengler27]

Great video man. Been a tech for about 4 years. I know all this, but it’s nice just to go over the basics. You do a fantastic job explaining. Your videos are much appreciated.

[@ravibalasubramanian1313]

This is a great video to understand the basics and the sequences of operations of furnace. Kudos to the creator of this video. He is awesome 😊

[@vipulpatel2270]

Thank you for taking the time explaining each sequence of operation!

[@adibee88]

I love this channel, he drops so much knowledge! 😁👍

[@j.lelandalvaro4911]

Hey! Word of Advice TV. Thank you so much. I binged watch a good number of your videos to understand whats going on my furnace. I was able to figure the issue for the 31 code. Awesome video!!!!

[@juanitanajera6033]

the best detailed video, very helpful to get familiar with the furnce fuctions. it will definetly help me with my inspection test.

[@_Kavika]

I was about to pay someone $100 for just switching the power of and on. thanks man! :)

[@roofinruffin]

Holy moly this was an outstanding video. I want this guy to explain everything to me! Subscribed

[@davidkl489]

This is one of the most detail understanding of how to diagnose furnace problems

[@sinaaaw]

seriously this guy just summed up alot of college hours for all of us rookies much respect

[@luckystrike600]

I agree this video is awesome

[@steelod1528]

buddy holly lives

[@keraarcher6154]

Bfhg

[@htxbimbo4420]

I’ve watched this video four times today. Wish me luck to pass my test tonight 🤞

[@ronalddaub9740]

I've been running propane and electric all night and I want to thank you for showing me how to properly jump through this pancake switch I finally got my furnace lit and it's 6:00 in the morning thank you I will figure it out from here it lit and it's burning I'm happy thank you sir

[@barronnz7160]

Been watching your videos off and on. I feel more confident of what i would be looking for and how to look at a furnace. And can even DIY my own furnace. I also like your A/C guide as well. Much thanks!

[@simplytrueyou9202]

Excellent video. Perfect way to explain something that can be quite complicated.

[@ethanbrooks4947]

I just started HVAC school and gas heating this week. Was a little confused but this made everything click for me thanks for the video great explanation

[@learnjcbskidsterchickensga7594]

You will make so many people happy! Good luck!

[@rickfarmer217]

Thank you, so much. Our furnace went down in -5 weather in Pittsburgh. Nobody could get out for 3 days. Fixed it purely by watching this video.

[@WordofAdviceTV]

Awesome! Stay warm :)

[@xyzbobboy]

As a retired industrial electrician who dealt with many different systems and machinery I am very pleased with your explanation of how a furnace cycles. I would have liked to see you explain how the indicator light showed during a normal cycle first. This is what the average person looks for first.

[@learnjcbskidsterchickensga7594]

My flashing light is like hidden down towards the bottom, so I need to put up a big sign to remind myself to look for the flashing light before I work on anything… My 32 year old furnace has been off and on troublesome for 12 years but I love it when I can fix it with help… York stellar +plus 1990

[@madcowusa4277]

Very helpful in getting a gas furnace going in a rental house I bought that had the utilities off for 4 years.

[@WordofAdviceTV]

Glad I could help! :)

[@hfahema1]

Phenomenal video. Best I've ever seen on the subject!

[@kaundabwalya7776]

Man!! u the Best 💯 never seen anything like this b4.. So so easy to understand.. Thanks 👍 👍

[@joeupton563]

You are one hell of a teacher.

[@terrychigwada8993]

This is the best video. Simple and straightforward. Thank you Sir.

[@MrPhawk711]

Great video. I appreciate the visual explanation. I’ve been trying to figure out why my Bryant furnace blower won’t operate at the same time the flames are active. Still working on it but this helped me get a better understanding of how everything works together.

[@huskyng6981]

Hi I have same problem, flame and gas turn on but 30 seconds and it keeps shut down, I replaced new flame sensor but not working

[@ronbishop4057]

That is an excellent explanation of the startup sequence - thank you!

[@skitzochik]

this guy is LITERALLY my "go-to" for any home appliance thats being a jerk. Ive come to the "furnace" section of his channel 4 times tday alone. these vids are about 4 yrs down in his videos but i often just scroll cuz he's got vids on nearly EVERYTHING electrical.

[@GHO-ty7pm]

Thanks for the super clear and excellent description. I was able to troubleshoot my furnace successfully.

[@kazipat]

Excellent. Straight to the point. I was able to solve my furnace problem.

[@thabulos]

You did a great job explaining it!!!

[@nickdavies6289]

Thank you so much for your videos :) From your help I was able to fix my own furnace and saved myself hundreds of dollars that I don't have to spare. 😍

[@billr4283]

Very good information in a usable format. My 20 year old well maintained Trane furnace failed during this year's snow storm. With your information, I was able to isolate the valve assembly / loose module connection as the culprit. I jury rigged a temporary fix since my technician (or anyone else) cannot get up our very step hill that is covered with a foot of snow and now ice. Thanks!!

[@tempemail5337]

Great presentation of sequence and basic troubleshooting plus how to find the information. You are Awesome! Thanks 😎

[@SonNguyen-gn3pu]

Thank you for the awesome video. Really help me understand little bit more on the furnance operation

[@andreyk5739]

Great A - Z operation sequence explanation! No more confusion, Thanks!

[@jimmyfernandez1464]

Great job explaining essential basics of a forced air unit. I work for the gas company si I understand everything you’ve shared. 👍🏽👍🏽

[@ferasmajeed5718]

Thank you for explaining the sequence. It helped me TS code 31 on a carrier furnace. The tubing for the pressure sensor was disconnected (new home). God bless❤

[@Gaporigin7seven]

Thank you for this outstanding tutorial. I understand now how the system works within 18 minutes. Really appreciate it!

[@stevenpb967]

You do an excellent job of explaining the inner workings of a furnace and that gives me a lot of confidence to troubleshoot mine. Thank you!

[@jaysonbosshog6934]

Thank you for your videos ! during this time of covid-19 your videos are teaching me more then my hvacr teacher does!!!!!

[@anilduggal6464]

You are good, it educated me about furnance. I have 96% furnance, will find video for it.

[@nwsli105]

Excellent class. Thanks for sharing your knowledge.

[@jasonsmith6776]

The best explanation of the gas furnace I've found thanks

[@kona702]

Never thought I'd be learning how my furnace works today but thanks a lot. very interesting lol.

[@nickhess5327]

Thank you this video is pretty helpful I'm a student just starting in the HVAC field. You definitely break down every order of operations when it comes to a furnace. Your videos are pretty thorough.

[@PCMAXGAMEPLAY]

Best video online ever, thanks for simplifying the explanation as we are not all that technical, it was very useful and helpful 👍, big thank you

[@ryanthomas8004]

By far the best HVAC 'explainer' on KZbin.

[@sneakerrt5569]

Your videos help me out a lot , I just got into the HVAC and your videos help me out so much thank you

[@jamestyrer6067]

Excellent video and you explained this very well. Thanks

[@jkiiru1]

Today, my furnace failed to light. After watching your videos, I discovered that the gas opening behind burner 3 next to burner 4 which has the flame sensor was blocked. On cleaning and un blocking it plus cleaning the flame sensor, things are now back to normal. Thanks for your help. You are such good teacher.

[@alexandrostapantaola191]

Great explanation very helpful for the people who are just now getting into the field!!!!

[@markeldamgaard]

Thanks so much, I've been really struggling in school for plumbing and this has helped me visualize everything

[@TRINI123A]

Great explanation and I like how you try different things.

[@qwiickk]

So awesome, exactly how I remember it from school.