Gas Furnace Turning Off? Here's What Might Be Happening

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  • Опубліковано 17 січ 2025

КОМЕНТАРІ • 441

  • @justincaldarella
    @justincaldarella Рік тому +58

    Best HVAC video I’ve seen, you couldn’t have explained it any better. Thank you.

    • @TaddyDigest
      @TaddyDigest  Рік тому +4

      Wow, thanks!

    • @Caesar-nq5if
      @Caesar-nq5if Рік тому +4

      @@TaddyDigest dude, you are better than any instructor I've had. Keep the videos rolling, you're gonna make me rich.

    • @TaddyDigest
      @TaddyDigest  Рік тому +3

      Really means a lot thank you so much

    • @HamBone86
      @HamBone86 2 місяці тому +3

      @@Caesar-nq5if For real! Most people would have never noticed the return size being the culprit but makes perfect sense. This dude is the HVAC GOAT!

    • @DanielLopez-ln4qx
      @DanielLopez-ln4qx Місяць тому

      I’ve learned so much in this channel

  • @richardjohnson8372
    @richardjohnson8372 11 місяців тому +17

    Thanks Tad, you're very thorough and that is why you found the cracked heat exchanger, too bad for the customer but good for their health and safety, they were lucky to have you as a service tech.

  • @Caesar-nq5if
    @Caesar-nq5if Рік тому +5

    I'm about to get out of medical and back into HVAC. I'm addicted to this channel

    • @TaddyDigest
      @TaddyDigest  Рік тому +2

      Really appreciate you watching brother

    • @Caesar-nq5if
      @Caesar-nq5if Рік тому +4

      @@TaddyDigest seriously, you are the Compressor Professor. I can't wait to start my LLC and I have you to thank

    • @TaddyDigest
      @TaddyDigest  Рік тому +1

      That's awesome the compressor professor 😄 🤣

  • @jayjudd6518
    @jayjudd6518 Рік тому +15

    This was one of those that start out small but cost the customer dearly in the end. You did save the customers and families life. Finding that heat exchanger full of cracks , praise the Lord. Hallelujah.😊😊

  • @andydevine5847
    @andydevine5847 11 місяців тому +3

    Very informative and well done video. All the right talking points. I learned a lot. Having come from an Industrial HVAC background, I feel that I have a lot to learn in the residential/commercial sector where I now own a business. This was very helpful. Walla Walla Washington.

  • @sleep0228
    @sleep0228 Рік тому +9

    Customer here. Nice video, i love learning how things work.

  • @Diobeatease
    @Diobeatease 4 місяці тому +6

    Thank you so much for this. I live in Iowa and we recently had 100 degree weather and my ac went out. Now the heat has passed ive found this and after replacing multiple parts (one was actually broken) this helped me truly troubleshoot and confirm. People like you posting these educational videos are real heros to people like me struggling to get by and unable to afford to hire someone.

    • @TaddyDigest
      @TaddyDigest  4 місяці тому +4

      I really appreciate you. Thank you so much for watching the videos. I'm so glad you let me know how i've helped and that to me means everything you're the.Reason I keep doing these videos

  • @DennisYounker-sf5wb
    @DennisYounker-sf5wb Рік тому +6

    That secondary heat exchanger was clean af bro.

  • @pa1396
    @pa1396 Рік тому +15

    good Job guys, I am an HVAC tech with few years of experience and i just came accross your video out of bordom amd wanted to appreciate what you are doing, keep it up

  • @ernestshort2112
    @ernestshort2112 2 місяці тому +2

    Best HVAC video I’ve seen, you couldn’t have explained it any better. Thank you.

  • @jessetmuniz7834
    @jessetmuniz7834 Рік тому +13

    Man, I like and enjoy very much your teaching scenarios, and troubleshooting a lot. I do HVAC but not like you residential/commercial. I only do apartments complex and pretty much is the same each day, since is the same property. Every once an awhile I do City Residential. But definitely I'm learning and keep learning by watching your videos. You're the best!

    • @TaddyDigest
      @TaddyDigest  Рік тому +6

      I'm glad you enjoy the video. You're the reason I do them my friend. Thank you so much for watching.

  • @ComfortCoolJ
    @ComfortCoolJ Рік тому +3

    Awesome video. I’m gonna rewatch and take notes. I’m an hvac student in Florida and I am confused about direction but you helped me with information thank you.

  • @dinowiz27
    @dinowiz27 Рік тому +3

    You explained that very well and a lot of helpful information for young technicians learning the trade. My name is Eric and im watching your videos from Baltimore Maryland.

  • @masquedebe713
    @masquedebe713 Місяць тому +3

    I did learn quite a lot from this video. I'm not a pro, but I can usually fix things with the right research, and you just provided some no-nonsense information that's gonna save me a ton of cash. Thank you.

  • @zahedaminullah6934
    @zahedaminullah6934 Рік тому +7

    Your video was amazing from start to scratch, well explained, i bet you a camera scope would not find that crack, hard to find cracks with a camera, but you did everything the right way, good job!

  • @sarbbhamra6758
    @sarbbhamra6758 Рік тому +6

    Hello, thank you so much for taking a time to make these videos. I learned so much from your videos. God bless you!!!
    Toronto, Canada

  • @STUNT4516
    @STUNT4516 Рік тому +3

    Such a good diagnostics test/learning video. IM SUPER EXCITED

  • @dyershvac5884
    @dyershvac5884 Рік тому +7

    No better in the business than ol Tadd. He's a master!

  • @jeffeverett274
    @jeffeverett274 Рік тому +4

    Very informative, didn't realize that there was so much involved. Looks like keeping the coils clean is important. Thanks.👍

  • @joshdares9052
    @joshdares9052 24 дні тому +2

    #1 hvac guy on UA-cam. Enjoy these videos dude.

  • @pedrotinoco5821
    @pedrotinoco5821 Рік тому +3

    it was very important for my education, thanks for your time from Chicago IL.

  • @charliemahoney2912
    @charliemahoney2912 Рік тому +3

    Thank you.
    AC coil was plugged.
    Switch was doing its job.

    • @TaddyDigest
      @TaddyDigest  Рік тому +1

      Glad it helped

    • @charliemahoney2912
      @charliemahoney2912 Рік тому +2

      It is helpful to see someone else take time to find out the root problem and not just try and quick fix the symptoms.
      The part was telling of another fault.
      Excellent

    • @charliemahoney2912
      @charliemahoney2912 Рік тому +2

      The modern "health care" system works the symptoms and not root problems as well, and we know how healthy Americans are.

  • @ilovedemfokes
    @ilovedemfokes Рік тому +4

    Sir, that was just about the most helpful vids I have seen in a loooong time. Thank you. Saved me a world of headache. BTW I love those Maxi Flex gloves - all I've been using.

  • @elgallo0823
    @elgallo0823 Рік тому +3

    The best HVAC guy

  • @harrycastro592
    @harrycastro592 Місяць тому +5

    Thanks, you helped me to solve a problem when 4 other technicians before me can't find.

  • @allen17sbmvp
    @allen17sbmvp Рік тому +4

    Your videos are liquid gold!!!!! Ty bud

  • @ronaldswindell1525
    @ronaldswindell1525 Рік тому +4

    A better filter will keep those heat exchangers clean!! 😊 I’ve been doing HVAC for 17 years, I’m located in Eastern middle Tennessee. You make really great videos! Keep it up!!

    • @TaddyDigest
      @TaddyDigest  Рік тому +2

      Good to know!

    • @disnalee
      @disnalee Рік тому +3

      My furnace stays running nonstop but blows no heat. You can feel the warmth by the vent but no warm air blows. I had two servicemen come but they only offer me to buy a new furnace from them. So far no repair yet. I hope its okay for the next 2 months. Damn they say board is bad $600+, fan motor bad $1000+ and need a new thermostat cuz mine has mercury., and a new furnace will run $4200+++ not including yearly service cleaning. I like to just get it repair but not having to buy a whole new furnace when not necessary... Is there any honest repairman out there???

    • @JB-lu7vz
      @JB-lu7vz Рік тому +1

      What MERV rating for a filter do you consider optimal for air cleaning but not too restrictive of air flow? Thanks!

  • @JorgeM3434
    @JorgeM3434 Рік тому +2

    ¡Gracias!

    • @TaddyDigest
      @TaddyDigest  Рік тому +1

      Thank you so much you made my mouth drop open. That's awesome

  • @ZER0V1dzz
    @ZER0V1dzz Рік тому +4

    Failed heat exchanger and a fist bump hahah, can't imagine why 😂 Good work guys.

  • @atlasfueloilinc.2421
    @atlasfueloilinc.2421 11 місяців тому +6

    I have a furnace with 140 limit switch open, now I can believe it is a cracked heat exchanger. I was speaking with co worker over phone and found it. Thanks for the info.

  • @zman919
    @zman919 11 місяців тому +3

    Hello sir. Just want to say I'm new to your channel and the content you present is excellent!!!!! Great Job!!

  • @rauljr9869
    @rauljr9869 Місяць тому +1

    Your attention to detail caught my attention while researching some troubleshooting. Keep providing, they're great!

  • @pedrogonzalez9184
    @pedrogonzalez9184 Рік тому +2

    Great job bro Pedro from Tampa FL leading every time with U.

  • @AaronPowellvox
    @AaronPowellvox Рік тому +4

    I had a bad limit the other day. It was on a package unit though so it got corroded. Great video once again!

  • @Tonyhvac
    @Tonyhvac Рік тому +6

    Great service brother,good job 💯

  • @derekkay2104
    @derekkay2104 Рік тому +2

    great work and thank you, i am visiting you from Atlanta Ga. keep helping me be a more proficient technician

  • @Eddy63
    @Eddy63 Рік тому +3

    Nice troubleshooting & nice find on the heat exchanger ... Good info Tad ... Thx

  • @edwinhiler5890
    @edwinhiler5890 Рік тому +3

    I learned a lot from this video. The biggest thing is the way to check in the limit switch is open with the thermistor, thought that it was only used to find super heats

  • @josemena7644
    @josemena7644 7 днів тому

    Great job explaining all the details, Tad!!
    You are a Natural Teacher; I’m impressed.
    And now I’m off to see if I can figure why my furnace turns on for 30 seconds and shuts down.
    Thank You, Kindly, Tad.🙏🏼

    • @DaveCrawford-jl9nn
      @DaveCrawford-jl9nn 4 дні тому

      Did you find the problem cause? I'm about to head to a friend's house with the same issue. Hoping it is a dirty flame sensor or dirty/bad limit switch.

  • @AlexanderOrona-m1g
    @AlexanderOrona-m1g Рік тому +4

    My boss and the customers think I should be able to do all this in like 20 minutes, by myself in a cramped attic space. lol You pretty knowledgeable tech Taddy. love your vids.

    • @TaddyDigest
      @TaddyDigest  Рік тому +6

      Your boss needs to get up there and do it himself

    • @techti8792
      @techti8792 Рік тому +1

      NTE bruh

    • @Tito-hvac8
      @Tito-hvac8 9 місяців тому +1

      The same thing happens with me 😏

    • @michaeldreves5072
      @michaeldreves5072 13 днів тому

      There's definitely a better way to solve this issue and come to the same determination Tad did you definitely don't have to remove the entire heat exchanger to tell that the heat exchanger is cracked There's so many ways to tell this without doing this process

    • @TaddyDigest
      @TaddyDigest  13 днів тому

      There's definitely different ways.What if the flame is blowing out?That's a definite indication

  • @duanehouston7689
    @duanehouston7689 9 місяців тому +2

    Great video, especially the cold air return tip.

  • @NationCraftbros
    @NationCraftbros Рік тому +4

    dam thats a big ass crack. i always put a box for 3.5 ton ac or anything at a 100kbtu and over. you offered to fix first before replacment. i beleive in building value with the client. when they see you actually care they will throw whatever you offer them. good work. im from illinois lol

  • @broncheemims8493
    @broncheemims8493 3 місяці тому +3

    Well done. It makes me dig a little deeper in my troubleshooting

    • @TaddyDigest
      @TaddyDigest  2 місяці тому +1

      Good to hear Glad you liked the video

  • @pedrotinoco5821
    @pedrotinoco5821 Рік тому +3

    I LIKE YOUR VIDEO, I 'M LEARNING A LOT FROM YOU THANKS, HI FROM CHICAGO IL.

  • @eastboundtrucking
    @eastboundtrucking Місяць тому +1

    Thanks!

  • @KARNAK47
    @KARNAK47 9 місяців тому +2

    I've been doing this for about about 20 years or more and I always add to returns to the big 90s like that. That dirty coil also could have contributed to that bad exchanger. But I would have never probably caught that without breaking it down myself because it had a rich nice blue and white Flame. In my experience over the years usually when that boy cracks I get some orange in the flame. Thanks for the tips I'll add this in my notes of troubleshooting. Love your content you do an awesome job peace and blessings😂

    • @TaddyDigest
      @TaddyDigest  9 місяців тому +2

      Thank you brother I'm glad you like to content. Thank you so much for watching.

  • @emoneyblue
    @emoneyblue Місяць тому +1

    Chandler, Arizona its like I'm there working with you, great stuff. Keep it coming brother. Thanks 😃

  • @odg09
    @odg09 8 днів тому

    Great video!!, from duplicating the problem and showing how to diagnose it and then the cause,Thank you for putting this video together. I definitely learned something new. I will now remove my blower and inspect the second burner. You are appreciated Sir.

  • @sergiodominguez2103
    @sergiodominguez2103 Рік тому +3

    That so good a really learn something. Thank you for sharing your experience

  • @ryanchurchill8245
    @ryanchurchill8245 Рік тому +7

    This was an awesome video!! I learned more here than I have in 6 months of school. Thank you Tad!!

    • @TaddyDigest
      @TaddyDigest  Рік тому +4

      I really appreciate you saying that you are awesome. Thank you so much for watching.
      Please share the video if you have time and hit the like button.

    • @dporrasxtremeLS3
      @dporrasxtremeLS3 Рік тому

      Yes! Taddy So much info. here! This Really Helps us who are out in the field troubleshoot, and be observant to the symptoms we see and the study we've done on heating and A/C. Very Good Video! Thanks! @@TaddyDigest

  • @harolddalesr8365
    @harolddalesr8365 Рік тому +2

    Here from southern Utah. Enjoy your show.

    • @TaddyDigest
      @TaddyDigest  Рік тому +2

      That is excellent so glad you're here brother

  • @joebjr8053
    @joebjr8053 16 днів тому +2

    DUDE YOUR THE MAN, Jan 1, 7 am, 58° in the house. What a way to start a new year. I have several furry animals so I change my filter the 1st of every month. Just so happens I used the last one in the case. It must have been in Nov so I missed Decembers filter. Shut main power, would kick on four 4/5 min, then Shut off. Had no idea lack of air flow would kick it off by being to hot. By the way everything was clean in the furnace with all new A/C 6 months ago, new inducer 1 month ago. Thank you so much for making this video. Have a Prosperous and Happy New Year.

    • @johnnybee3444
      @johnnybee3444 12 днів тому

      My exact scenario ! House temp dropped to 56 degrees Hot at the heat tubes flames great but look warm heat from all the registers , new filter will pull the blower out and look at the secondary heat exchanger but thinking the worse ,...........

  • @PremierBuildingService
    @PremierBuildingService Рік тому +3

    Thanks for posting this video I’m new to field and need these to learn I’m going to be paying for more details again thanks

  • @Jugc0006
    @Jugc0006 Місяць тому +1

    Tad is my hero. I've said it before and I'll say it now and Mañana too. 😊 good work Tad

  • @dgfitch
    @dgfitch Місяць тому

    DUDE. Thank you for this extremely useful video. Super appreciate you, was able to get my old ass furnace back up and going until a real repair guy came by finding a switch with rusting connectors using your multitool explanation, and deoxidizing the connections! HOORAY

  • @Full_Spectrum_Dominance
    @Full_Spectrum_Dominance Місяць тому +1

    Been researching this issue with my payne furnace.
    Thank you for this instruction.

    • @wkobayashim
      @wkobayashim 22 дні тому

      @@Full_Spectrum_Dominance did you ever fix the issue?

    • @wkobayashim
      @wkobayashim 22 дні тому

      Did you fix the issue?

  • @josevela7868
    @josevela7868 Рік тому +2

    Maaaaan you really go into Depth your Amazing God Bless Always

  • @isonlynameleft
    @isonlynameleft 8 місяців тому +3

    Wow, fascinating. I've actually ran onto quite a few bad limits switches though for some reason.

  • @TheIdeaLounge
    @TheIdeaLounge Рік тому +2

    This was super helpful!! Thanks for making!

  • @JesseDoesHVAC
    @JesseDoesHVAC Рік тому +3

    Considering the space above the units most of the time, i never understand why not lift the unit up and take return from the bottom as well. Good catch on that HX

  • @Oldsaintnick1980
    @Oldsaintnick1980 4 дні тому

    Outstanding! Perfect dialog! Calm Cool Collected! Thanks Tad! Keep up the good videos!
    Casper, Wyoming

    • @TaddyDigest
      @TaddyDigest  4 дні тому

      Thank you my man, appreciate the support!

  • @carlillos9921
    @carlillos9921 Рік тому +2

    Love watching your videos Taddy.

  • @BruceDuhamel
    @BruceDuhamel Місяць тому +1

    1140 am thx for your expertise going to take a look at my heat exchanger cabinets for corrosion and leaks❤

  • @josephrajaram3131
    @josephrajaram3131 24 дні тому +1

    Thanks for sharing ❤❤❤❤❤❤❤from New York.

    • @TaddyDigest
      @TaddyDigest  24 дні тому

      You're welcome, thanks for watching from New York!

  • @diaztechnicianllc8452
    @diaztechnicianllc8452 Рік тому +2

    I’m Daniel from Chicago, good video hope you make more videos

  • @peterman8058
    @peterman8058 7 місяців тому +2

    Excellent, I learned a lot on this one. Thank you!

  • @isaelcortes3953
    @isaelcortes3953 11 днів тому +1

    Awesome Tad, you always keep it 200%real !

    • @TaddyDigest
      @TaddyDigest  11 днів тому

      I'm glad you enjoyed the video!

  • @tonydiaz3168
    @tonydiaz3168 Рік тому +3

    Nice job brother I learned a lot from this video

    • @TaddyDigest
      @TaddyDigest  Рік тому

      So glad to hear my friend. Thank you so much for watching

  • @JaimeGarcia-eg2qv
    @JaimeGarcia-eg2qv Рік тому +2

    Thank you TAc I didn’t know you couldn’t add another return at the furnace if there is a water heater near by.

  • @rafaelcastro6466
    @rafaelcastro6466 Місяць тому +1

    What a good troubleshooting man!

  • @WadeValentinHVACContractorLLC
    @WadeValentinHVACContractorLLC 11 місяців тому +2

    Tad, you guys in Tennessee really know your ac/heating trade. im glad i follow you bc even tho ive been doing this for 22 years in Fl so no gas furnaces much, i learn something new from you each and every time, cause and effect! Thanks for sharing.

    • @TaddyDigest
      @TaddyDigest  11 місяців тому +2

      Glad to hear that my brother please keep watching

  • @LawrenceKing-r4g
    @LawrenceKing-r4g Рік тому +2

    Great video with good knowledge. Thanks for sharing

  • @keovongvilaykeo4799
    @keovongvilaykeo4799 3 місяці тому +2

    Great thank you 🙏

    • @TaddyDigest
      @TaddyDigest  3 місяці тому

      You're welcome thank you for watching

  • @rayanderson4302
    @rayanderson4302 Рік тому +3

    Really great informative video. I'm having an issue with my garage furnace my cousin sent me this link. I'm a plumber in illinois. The garage heaters a lot different it's one of those ceiling hung units. I changed the limit switch thinking that was the issue. It's not. I'm going to run some tests and check out the coil but this thing just keeps on shutting off on me. I was also going to try and change the thermostat. This thing was working fine and then it just started shutting off after 5 minutes of operation.

  • @EnviousGenome
    @EnviousGenome Місяць тому +1

    Thank you thank you thank you. I feel very informed now and can make a better decision.

  • @chadrayl9648
    @chadrayl9648 Рік тому +2

    I do what you do but I just pull one screw out of limit then stick my “k” type thermometer through that. Or pull limit, foil tape, then poke thermometer through. 😅 100 ways to skin a cat🤷🏼‍♂️ I’m in year 3 an always refer to your videos, thanks for helping us all out🤘🥃

  • @mikenaylor2889
    @mikenaylor2889 24 дні тому +1

    great vid. Appreciate the trouble shooting narration!

  • @konstantinusstoyanov9749
    @konstantinusstoyanov9749 11 місяців тому +1

    Nice diagnosis, thank you

  • @ftofte2008
    @ftofte2008 9 місяців тому +3

    Great video. You explained everything just fine. Thanks!

  • @Phillipscompletehomerepairs
    @Phillipscompletehomerepairs Місяць тому

    I learned that the 5 ton needs 2 return. I also like the servicing advice from cleaning the heat exchangers on maintenance. Thanks

  • @drubradley8821
    @drubradley8821 Рік тому +4

    That was impressive diagnosis... Well done. Still scary though, fearing mine will dump out on me..

  • @crz666
    @crz666 10 місяців тому +2

    Great video thank you!!

  • @renemolina4030
    @renemolina4030 Рік тому +2

    Bro thank you, for spreading your knowledge u rock. I wanna become a super tech just like u.

  • @led_handymanservicesocalif6432

    I hope you start posting TikTok from Mitchell SD because I used to fish 🐠 around there as a lived in SF

  • @andresbatacan463
    @andresbatacan463 3 місяці тому +2

    That's a costumers are looking an a Technician a true if not the good one but find the heat exchanger a crack that saves the family life but at the end it costly damage to the pocket but money is money life is important. I'm retired but still looking to learn something good. From Toronto Canada good job Taddy. Keep up the good work to help costumers.

    • @TaddyDigest
      @TaddyDigest  2 місяці тому +1

      Thank you very much for watching.
      I am glad YOU are here

  • @joelrivera3509
    @joelrivera3509 Місяць тому

    Awesome teachings . I am from nc mebane . I learn a ton about the heat exchanger and the thermo limit switch. I know better now! Thank you!

  • @danpresson
    @danpresson 2 місяці тому +2

    Good catch my friend

  • @dammo361
    @dammo361 11 місяців тому +2

    Thanks for the video....good one.

  • @DigitalAlligator
    @DigitalAlligator 21 день тому +1

    Yes, that is the attitude, there is always a cause

  • @agustincastrejon5966
    @agustincastrejon5966 Рік тому +2

    Nice video amigo, I learned a lot about you videos,,,, gracias] thanks I from Chicago I just started HVAC-R business,,

  • @30rdmaga
    @30rdmaga 3 місяці тому +2

    Excellent video

  • @jspriver
    @jspriver 18 днів тому

    Thanks for your work on this. It was very helpful

  • @brunomarquez3409
    @brunomarquez3409 Рік тому +2

    You’re the best. Thanks for the advice. 👍 my name is Bruno I live in Alexandria Virginia

    • @TaddyDigest
      @TaddyDigest  Рік тому

      Hey bruno i'm glad you're here brother
      Stay healthy stay happy

  • @paulocsanchez9906
    @paulocsanchez9906 Рік тому +2

    Good video very helpful thanks a lot 👍

  • @MiguelPenado-v5b
    @MiguelPenado-v5b Рік тому +3

    I learned not fist bump when I find a broken heat exchanger. But also thank you, great video.

  • @musicman5251
    @musicman5251 23 дні тому

    Excellent detail.

  • @taiptran1
    @taiptran1 Місяць тому +1

    thank you for doing this video i have learn a lot from your video please keep doing more video like this again thank you

  • @TomLawson05
    @TomLawson05 Рік тому +2

    Great job tad I had a high efficiency filter trip a high temp limit a while back always use cheap filters

  • @SimTest77
    @SimTest77 2 дні тому +1

    Thanks I thought i had a bad limit switch. Turns out it was just doing its job. My intake is plugged somewhere. As soon as i let some air in the intake side problem went away. Off to find the problem now.

  • @CordovaHVAC
    @CordovaHVAC Рік тому +2

    Very helpful brother thank you for this video.