Furnace Troubleshooting Step by Step with Multi Meter.

[@Wsldbrd1]

finally , I can listen to this man explain all day long. Very detailed, not to assume everyone watching is master hvac. People are always starving for good and detailed info to learn from. Thanks, great job

[@PrevailD]

i like that every time you introduce the next step in the sequence, you still start explaining from the very beginning of the sequence. Really helped drill it in. This was excellent!!

[@ronwertz1958]

I have spent hours studying HVAC systems on the internet. This one is hands down the best I have seen to date. You are an excellent teacher and I thank you for sharing your knowledge. Captain Ron

[@subpoenacontrol3799]

I completely agree. Captain Ron broke it down to a T no other video like it thank you

[@1455flash]

Very well explained troubleshooting and furnace operation procedure. might want to have a script next time

[@5822huron]

Get a software called delmar hvac simulator. 100% will make you a better tech

[@is-chitown-rael4551]

@@subpoenacontrol3799 didnt he man ALL the way to the T the rawedt

[@humanresource9659]

I have spent YEARS studying HVAC and this is by far THE most complete video tutorial on gas furnace operation/troubleshooting 👍👍👍

[@Ejleon93]

I'm an HVAC Tech going on my 2nd year in December. Just wanted to say this video is the best video I've seen thus far on troubleshooting a furnace. Great video to refresh my memory.

[@gideonlord-adem]

Good but he miss to mention FLAME SENSOR 🔥 WHICH ESTABLISHE THE FLAME FOR CONTINUES FLAME.

[@officerkrupke4966]

@@gideonlord-adem I guess you left after the last commercial started.

[@oscarestrada5509]

I have 6yrs doing hvac tec and install ed for a compans and I never have a problem how to fix it, all that you need to know be with the right service tech and ask questions if you have to.i like to watch hvac videos from others tech to get some tips and apply it in the field and it work, not complain . This guy splained very well

[@atomicorang]

You are the only tech in any KZbin video explaining what I’m dealing with as a homeowner thx much sir.

[@CustomReverb]

Sam, this is the best in depth explanation I've ever seen. If you aren't an expert you sure fooled me brother. Thank you, as well as your furnace for being the guinea pig multiple times. That was the best 26 minutes I have ever spent on youtube :) You have a new sub from me.

[@Parabellum-X]

Same.

[@sunnitsunami7207]

Same!!!! Well said and a great video!

[@gilbertopalacios570]

Excellent explanation for a DIYer and complete noob in the HVAC world. This video allowed me to know exactly what I was looking at. It also allowed me to function test all components before taking anything apart. Truly thank you Sam!

[@beercanburr4058]

I did go to hvac school and they taught us this exact start up procedure. You went into more detail though. I subscribed and saved this video. Thanks

[@beau-beauthecharlieboy8098]

This is the best videos to explain furnace trouble shooting on KZbin. No bullshit smear and straight!

[@chrisbowie9351]

You sir saved me over $800. I thought I had a bad gas valve, turns out my flame roll switch was bad. THANK YOU!!!

[@johngiff2978]

Omg this guy is such a great teacher, he repeats himself just enough to be sure I have captured his messages. His delivery rate is at a speed that I never become overwhelmed regardless of how much useful information he delivers. What a great furnace video Sir.

[@vinylvinylvinyl]

repeat repeat repeat........I loved every repeat of the operation. I am exploring repairing my furnace....Your presentation gives me confidence. Thank you.

[@ramchillarege1658]

Sam, this is one of the best presentations on the topic. I am part time tech, and it was excellent to be refreshed on all the minor details. Will look for other videos from you. Thank you.

[@GB-ue6wr]

Nice job Sam.. thanks for sharing all the steps. You showed each step,not just telling to do it, but you showed how to do each step!

[@jeffreya.657]

This is the most thourogh and easy to understand video on Furnaces I have ever seen. Great Teacher Thx

[@christopherhurtle7167]

Great video tutorial im an industrial maintenance technician for 15+ years and this is a better guide than i could make!

[@YotaNinja]

I don't know the first thing about electrical, but when my ac compressor wouldn't kick on today, I knew I had to figure it out on my own. This video has really given me the confidence to troubleshoot my system. Very well spoken, detailed, and laid out information. Thank you!

[@Bilmor1982]

I'm writing this from a new tech stand point. One of the best if not the best video I've seen on troubleshooting a furnace, no fancy terms simplicity yet filled with information!!! Great job Sam thank you for not rubbing on our face your knowledge and making it simple for those of us starting in the HVAC field!!!

[@franknielsen3562]

By saying the wires are interconnected, means they are all in series, if any one the safety devices open then the furnace will open and shut down. I believe. I would have liked to of seen a wiring ladder diagram. But this was by far the best explanation I’ve seen on You Tube. I’ve had some electrical experience and I enjoy watching these video’s. Always learning more. Thank You

[@RaymondWodzisz]

You didn't tell us why the blower runs for 90 sects every time you turn on the power sw. Thanks

[@jayxiong8254]

Thank you for putting this video on KZbin. Its very helpful for HVAC systems troubleshooting. You do a great job.

[@hughjanus269]

*GOOD STUFF BROTHER* ... As a stubborn *IT* guy...I refuse to call a tech to fix anything. I have been diagnosing and repairing my furnace for years... Knew some of that stuff... But never knew the entire process until this video... *THANKS THANKS THANKS* *LIKED...SAVED TO FAVORITES.. AND SUBSCRIBED*

[@williamspiller5032]

GM. EXCELLENT TUTORIAL! I REALLY ENJOYED YOUR THOROUGH STEP BY STEP GUIDANCE.

[@socalsand86]

I have never seen a more detailed in depth video. Everything about this video was top notch. Thank you!

[@simonlam9948]

very details video . need to watch few times to understand it. Good work

[@jeffb.1555]

Masterclass! Thanks for all the detail. It helps us mechanically inclined people understand and able to fix without having to call a technician.

[@larrybrocato1733]

Best way I have see trouble shooting a warm air furnace . Love the fact that you took your time and explained all different scenarios. Also the way you talked slow and clear . Most people talk way to fast and jump around from topic to topic. Nice Job Sam keep them coming. And remember if you don't use it you loose it. If you share it its yours for ever. If you keep it to your self there is a chance you may loose it . I had to learn this the hard way.

[@johnkapakos5189]

Μύθοι Αισώπου

[@kawaiibtslover1012]

I have been messing with furnaces for about 10 yr and currently in hvac school. And I can tell you that this is well explained and one of the best vids I have watched, thanks for taking the time and effort to make this vid

[@richardlabat5357]

Thanks Sam --- as a note - some of these air switches has two contacts - one on the front one on the back check both! On my Carrier unit the yellow jumper powered both switches - then there was a brown (signal to control board) and orange (signal to control board) two different outputs signals. Inducer housing pressure and collector box pressure (check all 3 tubing- green, black, and black square tubing vacuumed sensing signal). Blow them out (toward the inducer housing) and you can check them with a OHM meter by gently sucking on the hose and hearing them click. Make sure the hoses are good and tight - a very small vacuum leak can cause them to not work!

[@hermanbryant37]

I have seen a lot of furnace videos on the net but yours was the best one yet I don't think it gets no better than this one... it really helped me out a lot I just want to say thank you and keep up the good work!!!

[@thelightworshipper9687]

I want to second and triple that. Excellent, excellent tutorial. Thanks for sharing the knowledge

[@michaelmcmahon9117]

Agreed. Awesome. Period.

[@patrickdorce6527]

Thank you very much I really appreciate this video

[@user-or7ys7yk4p]

Best video ever thank you for taking your time👍

[@summersdw1978]

THAT, was the absolute best step by step video on furnace operation I have seen. Thanks.

[@BlacHaze78]

I’m currently in HVAC school. This semester I’m studying gas furnaces and electric motors. This is by far the best video explanation I have came across.

[@mookeythepimpthompson6031]

I just want to thank you for this video. I bought the igniter for my furnace and I thought it was going to work but it didn’t. I followed your video step by step and it worked. God bless you and yours my friend.

[@jonfd1]

I couldn’t save this video fast enough, I can’t begin to tell you how thankful I am

[@philipwall1025]

Sam your a good teacher,u speak and teach at good pace.Your easy to follow and understand. Although you are very wrong,an inducer running or verifying(what u call it) isn't what closes a psi switch .The psi switch has a tube going to it that tube is connected to the housing of the inducer,when the inducer runs in a system that doesn't have a chimney problem, chimney pipe problem, heat exchanger problem etc the inducer running creates a vacuum that the closes the psi switch normally open contacts. Not all blower mtr run on a call for heat for 90 seconds, thats that furnace, thats not all.Roll outs,high limits psi switches are not INTERLOCKED ,thats called wired in series.In the beginning u said u were troubleshooting a board,so why would u use LINE voltage ground and not your LOW VOLTAGE NEUTRAL?Your low voltage neutral is common.Your discussing a gas fired furnace and u speak about the flame rod for 15 seconds?That rectification signal keeps the dam thing on,if thats not a good signal bck tothefurnace it won't wrong for 12 seconds.For some reason the flame rolls bck,FOR SOME REASON,howabout for these reasons,a bird nest in your chimney, water in your chimney, a brick chimney that fell apart,a cracked heat exchanger, a blocked secondary,a drft mtr with no squirrel cage that doesn't use a psi switch but rather an end switch.AND FORALLTHESE REASONS THATS WHY A ROLL OUT WOULD POP(the resettableswitches)Start up process,the industry lingo we call that a sequence of events.I JUSTHEARD INTERLOCK AGAIN,roll outs wired in series.GOOD JOB BRO,keep upthe good work

[@portrashot]

My man… 😮 you are the best instructor online ever. Seems like you follow the current flow point to point… great work! Yes I learned and subscribed, yes sir…

[@AG34273]

This is awesome! Just a suggestion that what would have made it more awesome is a 15 second talk on what each of those pieces does like "flame sensor is there to detect that you actually have ignition and flame and if not it turns the furnace off to prevent gas leak"... things like that.

[@firerafly]

Thanks so much!! I took 3 months class learned AC but didn't really know anything, your video is a tremendous help, thanks again. Please make more videos like this about the AC system also!! I will be sure to keep an eye on the new one you make!

[@d.j.robinson9424]

Wow, that was absolutely perfect ! Your illustration, camera work, and explanations..spot-on ! I would have liked to see the flame sensor, and how to clean or replace it. Fantastic..!

[@mr.roberts3886]

One of the better explanations I have seen on furnace troubleshooting with a multimeter and great explanation on the sequence of operation 👍

[@RAMONSANTAANA]

Thank you for making this detailed technical process video using a multi-meter. This is one of or the best video I've seen on KZbin.

[@mounirzerhouni7966]

YES THIS IS THE BEST VIDEO THAT EXPLAINS STEP BY STEP HOW FURNACES WORKS IT SAVES ME MONEY AND TIME TO FIX MINE ITS HIGHLY RECOMMENDED THANK YOU.

[@xaxa411]

I never had so good educator like you. Sam are the best one !!! Thank you so much.

[@franciscohernandez5643]

This is the best explanation of the HVAC system . Just wanted to say thank you for sharing this video.

[@MRXDS1989]

1# Gas Furnace Operations Video on KZbin UNDISPUTED!!!!! When I began hvac at apartments awhile ago, just finding a video where the tech didn't go off on unrelated information, advance functions, random applications etc was impossible.

[@iowahorseman]

One of the best and most in-depth troubleshooting videos I’ve seen, thank you!

[@beckyschwantes5287]

For sure! Excellent.

[@snorkfire]

Wow. That’s the most complete and comprehensive walkthrough I think I’ve ever seen. A natural teacher. Maybe you should consider joining with Khan Academy…seriously.

[@unioncityhiller]

Definitely the best furnace tutorial video ever

[@d.j.robinson9424]

Sam you are an excellent teacher !! 👍👍 . Thank you for the perfect quality and lighting. I replaced my board exactly like yours, no heat... hit the roll-out resets and BOOM, We have Heat and my beautiful wife is happy. 🙏🙏💜

[@enriquejimenez9349]

I certainly share the comments. You're truly the best young brother. Thanks for your time and knowledge.

[@robmix]

This is the best well explained trouble shooting video I have ever seen on you tube. You are a very good teacher.

[@henryadams2091]

This is one of the best videos explaining how the furnace works I learned a lot from this video thank you.

[@RealFuzzyPickLE530]

I just wanna know which genius thought it would be great to place a flue in front of the blower assembly. True stroke of genius right there. That an entire company signed off on. Truly phenomenal.

[@josephpuchel6497]

Hello I just came across your video. Excellent tutorial video. Very in-depth video. I’m a homeowner and my hobbies are mechanic s, electrical, plumbing, carpentry along with others. I like to diagnose and repair problems. I know repair cost are high but one time I was charged extremely more one day I had service on my furnace when I was working. No more. I plan on taking a HVAC course. Looking forward to seeing more of your videos.

[@gamanielguya8569]

I don’t know nothing about furnace but you made it clear.

[@imranahmed1071]

Beautifully explained the complete flow of signals. For a dumb person like me understood the entire process. Best thing is repeating things again and again. Best video sir. All I can give you is respect

[@PR-ou9oo]

EXCELLENT explanation I have never ever SEEN such technically wiring explanation cycle ON KZbin. "GOD BLESS YOU" my friend keep making more videos' VERY LESS PEOPLE HAVE SUCH TALENT TO EXPLAIN the real world knowledge. Every HVACR guys should watch this video again and again till they get MASTERs of FURNACE wiring.

[@chriscooper9729]

You are the best teacher on Heat Furnace

[@asonofissac]

WOW I have spent hours and hours and hours trying to find a video like this. This video is the best that I have found and probably ever will find, on trouble shooting a gas furnace. For those of us that are trying to find out what is wrong with our gas furnace, In my opinion this is the video we need and have been looking for. Thank you so very much.

[@AA6PA]

I have never seen one as detailed as this. I’m a retired hvac tech.

[@1971omi]

I just watched your video. I'm a hvac student. This is one of the best videos ever seen. You are great teacher. I really appreciate your video. God bless and keep up with great work. Thanks again.

[@JeanCarloz1]

These videos are worth GOLD, nay DIAMONDS.

[@jorlexgamechanger]

Perfect explanation! Whole working system of furnace in one video. With clear voice n easy to understand. You are pro.

[@AZ_sunshine]

Wow! You are so very talented and so very generous with your time to help others! You're an excellent instructor! Thank you so much for the hours and hours you put into producing this amazing, comprehensive troubleshooting a furnace using a mm tutorial video. I would like to add that your voice is calm and clear. Thanks for no music and excessive yacking. By far the best tutorial I've ever seen. I have watched numerous YT videos and I finally found one that will help me my particular issue and more! I subscribed and look forward to seeing your other videos. I will also look to see if you have a link for $$$$ donations $$$$ to show appreciation for your time and talents. God Bless you Sam.

[@bentback1]

I would agree that your video explaining the sequence of events was the most helpful of all the ones I have seen. Thanks

[@njeikkenneth9496]

i dont comment on videos but this gut is a real teacher

[@williamthompson9249]

Great run down on trouble shooting a gas furnace I never really trouble shooted a furnace I just went off the diagram and the lights blinking indicating the problem I rebuild a whole gas furnace in over two years due to it being in a flood that I wasn't aware of but I appreciate this

[@javierflores940]

Excellent explanation, way better explained than my HVAC teacher!!!! Thank you, Sam!

[@danielalger5813]

I’m very impressed with your thorough, methodical, and informative video, I don’t mean to nitpick but instead of using electrical tape to close “hold in on position” your furnace power switch, might I suggest that you just try pulling it out, same as setting a fan limit switch to manual. Keep up the good work, maybe it will get some of the people who bother me at ridiculous times to realize that they could do it themselves, I was called at three o’clock in the morning on Christmas Eve to fix a boiler and again on Christmas Day to do a forced hot air furnace and I’m not even a furnace technician. . . I’m just “Blessed” with the ability to fix things.

[@FooDaki]

extremally thorough like all tech videos should be . thank u very much for the content !

[@datdada8563]

Thank you Sam for sharing. Got my heater working. Really appreciate you for sharing your knowledge.

[@1290varun]

This is bible for furnace troubleshooting . Good work!!

[@ForHim_orAgainstHim]

1st Goodmans 12:31 Combustion is of the great mystery of the trinity.

[@Notarivs_Anonymvs]

🏆 Thank you for your helpful and detailed guide to troubleshooting HVAC systems. Hands down your video is one of the best one that details all provable causes and how to test components with a multimeter.

[@dustinchapman3554]

Agreed I watched hundreds of videos on furnaces best one yet don't even need to watch any more and about to check mine now appreciate it!!!!

[@kickenchicken9645]

one fine job, any one manically inclined should save this video if u try to work on a gas furnace. i know i won"t remember all this but i'll have it to watch when i need it. you will never find another one even close. very precise, thanks for helping

[@localrockbands8962]

One if not the "Best" troubleshooting videos I've ever seen. Thank you, Super job!

[@johndeez2012]

well hot damn i didn't even have this issue mine is electric but man you are hands down the best teacher i ever seen

[@charlotteantiquepowerengin6277]

Im loving this tutorial. Very grateful. Saving this spot 17:13

[@kennyhoang5581]

very nice , easy understanding . excellent lecture. love it . thanks

[@ludaalgi]

Thank You! Sam, you literally did the most golden video in youtube overall, you definitely deserve lots of respect on the knowledge and great experience you have given here in this video is really understandable and no confusion at all.

[@najeebalyafai348]

Best troubleshooting video I have seen thus far

[@Brisk2020]

Sam, you did an excellent job explaining the furnace start-up sequence with trouble-shooting tips every step of the way with a multimeter. I benefited even more since I have the same exact downflow/horizontal furnace (a Payne model PG8DAA). So, it was like you were at my home explaining my furnace to me. 🙂 Thank you!

[@teklesenbetgebreamlak7365]

You such great teacher, with detail furnace troubleshooting explanation, l have no enough words to say thanks for the great content of this video

[@juanchutan4360]

Thank you for this tutorial, absolutely the best I have ever watched. I learned so much in about 30 minutes.

[@pratt1205]

Great job! You just showed how to use a multi meter correctly as well as troubleshooting 101. Nicely done sir.

[@antonioamendola4474]

Excellent explanation, by far the most complete operating procedures and tastic of different components, again excellent, thank you very much

[@turbotony796]

DUDE Thank you!!!!! This is one of the most complete furnace videos i have seen. I have been having problems with my furnace and have been looking for the exact technical data you gave in this video like voltage and Ohms for specific parts. I will be using the knowledge you gave me in this video to completely troubleshoot my problems. At this point though with what I learned from this video I believe my furnace control box is bad.

[@michaelswells]

Based on your video, I was able to have a starting point for troubleshooting the missing low voltage issue not at the pressure switch. Thanks.

[@alecaruso391]

From Argentina. Thank You Sam. Whith your explanation I resolved the problem in my weathermaker 8000. one of the temperature sensors is faulty. I replace this and it worked perfect.

[@danielminor3301]

Right on, man. Thank you. Good work. You just fixed an older womans heat. And it is COLD, out here in Alabama. We aint accustomed to this kinda cold.

[@davidwatson8142]

I wish I had found this video years ago! Thanks for taking the time.

[@halleonard1221]

This video was very informative. I am an HVAC/r technician and even if I wasn’t, I’d be able to understand this video clearly and precisely very good teaching method thank you so much for the information

[@binyammamo6454]

Sam, Thank you man. I am gone watch again and again l. Best explanation ever.

[@eagleman0977]

Absolutely hands down the best furnace trouble shooting video on KZbin

[@rodelquilantang9519]

I just download your tutorial video to my pc, thanks to your video i learned alot..

[@rocnktm]

Wow! Awesome instructional video! Thank you so much! May God Bless you in your business and keep you safe!

[@tonyshi4325]

Amazing video as to how a furnace works. Learn so much in a matter of about half hours. Thank you so much to share some valuable information.

[@summitm18hvac90]

This is a very good video. If noone knew the series of operation, this will explain it. Thanx for the video

[@bobbyoctaviano2661]

Thanks for taking so much time to help us all out. Your generosity is greatly appreciated. Best to you and yours Sir. Cheers… B