Using A Multimeter With HVAC Schematics

[@tedsmith4311]

I don’t ever comment on KZbin videos but this is excellent from someone who is new to the trade. Please keep doing videos like this.

[@JerseyMikeHVAC]

Really appreciate you taking the time to comment, then. Thank you so much.

[@Flight-Instructor]

That was one of the most clear explanations of furnace circuitry I’ve ever seen. Very well done. I’m now a subscriber!!

[@JerseyMikeHVAC]

Thank you! And welcome aboard.

[@RemySimoneaux]

A masterpiece. Jersey Mike is the best HCAC teacher on KZbin. I think he is just starting out… wish it was stock I’d buy as much as I could. He is obviously going to grow this channel with content like this and his soothing voice I am able to forget I’m learning and just absorb the information…. Keep the content coming JM

[@JerseyMikeHVAC]

Thank you, my friend!

[@TheRepublicOfJohn]

I'm an IBEW journeyman electrician and I am a foreman at a large mechanical contractor installing HVAC controls in large commercial and institutional building controls systems. Your videos are a great reinforcement resource for my helpers and apprentices! Thanks for all the time and effort you put into these videos brother!

[@JerseyMikeHVAC]

I was IBEW local 94 myself for over a decade running powerhouses. Glad to hear you're finding my content useful for those coming up under you. my brother. Thanks for the comment to let me know!

[@robertwasswa1631]

Aaahhh jersey Mike. I thank you for the knowledge. You're a gooder teacher. I like when some1 rips out the entire system and explains it bit by bit. You're up there doing a wonderful job. Asante sana.

[@JerseyMikeHVAC]

I appreciate that

[@JackGore]

You should open a school your ability to teach is amazing. I’ve learned so much from you, but this video in particular is extremely helpful. It’s the starting point to understanding how these systems work and diagnosing the problem.

[@JerseyMikeHVAC]

Thank you! I have considered getting into official training of some sort, but still figuring out how to go about it. I looked into teaching at trade schools and that doesn't look good to me. So many of them are more concerned with making money than teaching a quality education. So I'll just keep making more videos for you guys for now!

[@UltraGamma25]

​@@JerseyMikeHVACBrother you could make your own HVAC school. I worked HVAC as an apprentice and I wasn't taught anything. I barely learned even after 100 installs because the workers above me barely knew or cared to teach me. And most other KZbin channels here about HVAC are a waste of time. But seriously consider making your own in person meet ups for HVAC minded folks that want to learn more about the field. You'll definitely make friends along the way, that's for sure.

[@andrewpipitone1572]

I am 62 and have not learned fully how to trace wire and voltage. You are an awesome teacher. I learned a lot>Your edits and drawing on that scamitic are time consuming. I can not tell you thankyou enough for this great video I will show my son so he learns as well. Thankyou

[@JerseyMikeHVAC]

It is time consuming, but worth it when it helps so many.

[@Tony_Dellechiaie]

You have a real talent for explaining things very clearly and concisely. You are one of the best HVAC channels on youtube and it is insane you don't have more subscribers. Thank you for making these videos!

[@JerseyMikeHVAC]

Thank you, brother. Maybe someday....

[@LDriggs]

You do a great job taking it step by step to understand schematics & using the meter. One of the best videos I've seen. Thank you

[@robgarner4728]

I think that this video is the most clear, concise and to the point that I have seen on the interwebs. Thank you Sir!

[@martingallegos1250]

Just finished HVAC and I just learned more with you Thank you I wish my instructor can explain everything the way you do ❤❤

[@JerseyMikeHVAC]

I'm happy to help. Glad its helping you.

[@bernardocisneros4402]

Very good video with a lesson on how electricity flows through components in a furnace and how to troubleshoot problems that may arise by knowing the sequence of operation,

[@Slickizme]

You’re a great teacher, man. Thanks.

[@JerseyMikeHVAC]

Glad you think so!

[@manueltovar961]

Great job explaining the circuitry and the components functionality. I look forward to your next video.

[@joaquinsandoval5152]

WOW you should definitely be a HVAC instructor, love your videos! Thanks for sharing your knowledge.

[@philcore4759]

Hands down, the BEST elaborate HVAC teacher on YT, thanks for the knowledge Jersey Mike, you keep making vids, ill be watching

[@karennifilms424]

You are teaching better than my apprenticeship instructor at College. Thank you.

[@JerseyMikeHVAC]

Happy to help

[@DaviePipes]

Just found your channel. I’ve been in the trade 2 years and start as a service tech what a very good video like and subscribe for sure ty

[@highway2success777]

I have to agree your video is clear and easy to understand without fluff and provides value

[@crunchies3096]

You really make these videos smooth as butter man. You're one of the easiest guys to learn from and I thank you for the videos you put out. From an HVAC apprentice that struggles with electrical troubleshooting the most out of everything we do. You simplify it to be dumby proof!

[@chuck7432]

Thanks Mike. You explained thermostat wiring that for years, for me, was baffling. So glad I discovered your channel. Your other vids with graphics and pics are awesome. 👏 👏

[@JerseyMikeHVAC]

Welcome aboard!

[@dpayne3195]

Excellent video Mike please keep the videos coming

[@jewellhirsch1694]

Hi Jersey Mike, I am loving the way you are discussing how to your high voltage and check down to your low voltage on the board many times text often condemn the board when there’s nothing wrong with it at all I will enjoy the rest of your talk. Oh somatic, reading all the meter Tallahassee Fred

[@JerseyMikeHVAC]

Thank you!

[@izzymoney85]

Mike you the FN MAN! I think everyone appreciates you for what you do just as much as me thanks for another great Video 👍👍

[@wilnereustache2195]

You make me love HVAC, I am going to school for It because of this video , your diagnostic method Is clear and understandable

[@JerseyMikeHVAC]

Good luck! Reach out anytime if you have questions.

[@u2tipsy]

Flawless as usual! Looking forward to viewing future videos that focus on multimeter functions & on what components they are applied/required during system diags in both heating and cooling. 👍🏽

[@JerseyMikeHVAC]

Thanks! Will do!

[@artherious5146]

Thank you for sharing your knowledge! I pick up a lot on your teaching! You should be a professor on hvac schools!

[@xcarpkidx3128]

This was insanely useful, after watching I've learned so many things make so much sense but I never knew, definitely gonna apply what I've learned thanks.

[@redexit0707]

This is an excellent explanation. Thank you for taking the time. You have a teaching talent.

[@RedemtionMusic]

Beautiful delivery and simple wisdom!!!!

[@cenricocustoms6489]

Thank you! You are the best KZbin instructor in my opinion, do you have a video of Sequence of operations for a gas furnace? and how to add refrigerant?

[@JerseyMikeHVAC]

Thank you. This video should help you out with furnace sequence. It doesn't just cover the basic sequence. It's very comprehensive and covers the entire electrical sequence from the breaker in the main panel to the flame firing up: kzbin.info/www/bejne/bavHq5qBdr59ebc I also have a video on charging R410A into a system with a TXV here: kzbin.info/www/bejne/jHiaqpp9nJurrMk Let me know of you find those helpful (or not).

[@johnnyelectric7572]

seriously JM....you do an excellent job here. The "sequence of operation" aspect is so important. I'll watch for more from ya. Thanks

[@stevencarrillo3615]

I like the way you show how everything works I really learned a lot.

[@thekinginthenorth989]

Man this has to one of the best videos for newer techs and apprentices. The detail and step by step format is amazing 👏 thank you, keep it up

[@ScottDavis-f7x]

Awesome circuit walk thru… probably the best I’ve seen on KZbin. Thanks for taking the time to present it. Would love to see similar on a Heat Pump.

[@danstark462]

Mike you did a thorough job. Thanks.

[@williamspiller5032]

WELL DONE. THANKS FOR SHARING YOUR KNOWLEDGE, I LEARNED A LOT.

[@JerseyMikeHVAC]

Very welcome

[@jaimegutierrez9930]

You refresh my skills with tis video for this coming winter, great video

[@abdorakeebnaji1527]

Thank you sir for this lesson of diagram the easiest and best explanation. Wel done

[@JerseyMikeHVAC]

You are welcome

[@brianmcdermott2430]

Great points, Mike. Thank you.👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻.

[@elgkas9928]

Welcome back Mike. Hope you and your family are settled in. Thanks for another informative and educational video. By the way, NY and NJ miss you🙂

[@JerseyMikeHVAC]

Yes, finally settled in. Didn't think it would take this long. But good to be back on again. Thank you truly for taking the time to wish me well. Means a lot and I hope all is good on your end.

[@pedromunoz809]

Thank you! Beautifully explained🙌

[@deanmartin1966]

Excellent video. This is perfect for new techs.

[@LarryBlair-ux6gh]

Thanks man

[@BeaterCar]

Gonna add this to my hvac playlist thx bro

[@JerseyMikeHVAC]

Any time

[@kcedgar04]

Thanks for sharing your knowledge and experience. Great video

[@metam8975]

Exactly what i was looking for..Thank you so much master.

[@timcbollin]

Great explanations and illustrations

[@alfonsoevangelista2314]

Very good and complete presentation !

[@robertmunguia250]

Very useful! Nice refresher.

[@garypoplin4599]

26:34 - Performing the hot surface igniter voltage test in this manner could hide another reason for furnace recycling. Even if you read 120v between the black conductor and ground, a broken neutral from the board to here will not allow a complete circuit to the igniter (just sayin’). Excellent presentation. I particularly like the schematic/diagram shown side by side with the actual wiring!

[@JerseyMikeHVAC]

Thank you!

[@SeamusDaly-oc3yw]

Great information Mike, thank you 👍

[@miguelonrr8080]

Gracias , I love the way you explain new subscriber

[@djdc670]

Top notch explaining...

[@chesstime356]

As always very nice video

[@anthonycanty3755]

Great video to learn from.

[@EdmarcioGuedes86]

That's an awesome video. It helped me a lot. Thank you so much.

[@JerseyMikeHVAC]

Nice. Glad it helped!

[@chadrayl9648]

Would love to see a video like this on boilers🤗

[@armandotellez5476]

Thank you brother I’m a beginner so this is helpful

[@JerseyMikeHVAC]

Glad to hear it

[@vicferrarisgarage]

Awesome video. Deep and clear

[@stevencossaboon3237]

Great video Mike. I hope you and the family are doing well.

[@karellfernandez73]

This is a master class. Gracias

[@miguelrojas3394]

Thanks Mike great video and excellent explanation thank you so much.

[@cab8188]

Another great video Mr.Mike Thanks so much !!

[@burangyaffa4132]

Great lecture

[@sermore77]

Another great explained video.

[@snickerdoodle7188]

Excellent video, I just subscribed....Thank you

[@JerseyMikeHVAC]

Welcome aboard. Thank you.

[@joebanks174]

Incredible explanation. My only question is why when you tested the igniter it only said 40 something volts? Video is awesome.

[@JerseyMikeHVAC]

I think it might be a grounding issue. The installers tapped into the original knob & tube wiring of the house (built in 1913), which has a neutral but no ground wire.

[@brianmcdermott1718]

Great video. Thanks Mike.👍👍👍👍👍👍👍.

[@JerseyMikeHVAC]

You're welcome!

[@Rizz264]

Makes sense thanks for making this video

[@lexre5948]

Thank you for the great video sir. New subscriber here.

[@JerseyMikeHVAC]

You're most welcome. Thanks for the sub!

[@greene1952]

GREAT VIDEO!!!

[@keovongvilaykeo4799]

As always great thanks 🙏 you 😊

[@Goldenb.f7434]

Thank you sir..nice explanation

[@Techstar52]

You are appreciated good sir !

[@paulbryant68]

great stuff bruthu! subscribed!

[@JerseyMikeHVAC]

Welcome, brother.

[@jeffbondrum4917]

Amazing.please upload more videos..

[@heroesandzeros7802]

My OCD kicked in big time. Another thing that complicates the troubleshooting process is that the whole wiring harness looks like a rat's nest. I guess they want to save money on a couple of inches of wire. I love the ladder diagrams also; those are less of a rat's nest. 40+ years as a panel builder and I have never built anything that looks like that. All my panel wires come back to a central terminal strip. Troubleshooting is as simple as checking for voltages on the terminal strip. When you lose voltage, it tells you what component is bad or is blocking the function. Still waiting for a terminal strip with onboard LED lights so that troubleshooting is as simple as looking at the terminal strip. I know that you did not build it, and I love your videos.

[@JerseyMikeHVAC]

What got me on this one is the fact the unit is only 3 years old and the installers decided to power it splicing off of a K&T circuit from 1913 with a modern panel (available when the unit was installed) only 10 feet away. Guess everyone is trying to save a little on wire.

[@BurntheevidenceReginal]

Keep it up bro

[@joebanks174]

Great video

[@D2DNYAC]

Good troubleshooting video my friend, i do similar to videos on ny channel including commercial hvac troubleshooting

[@shieldcracker]

Great video Mike! On the Ignitor the meter showed 43V when energized, shouldn't we see line voltage? How is that 43V generated?

[@shavigill-p7n]

this is a great video

[@yeremyahhawkins4216]

Great video!

[@VagueDream]

Amazing Video 👍

[@Eddy63]

Good explanation ... Thx

[@timothycontreras5624]

Great video thank you

[@JerseyMikeHVAC]

Very welcome

[@stevesolt4036]

The fuse has test points on the surface next to the 3 amp. One on each side

[@mitchdenner9743]

Where you at in jersey? I'm stuck here too, unfortunately. Great video by the way. Just found it, subscribed. 👍

[@JerseyMikeHVAC]

I was in Bergen County but I got out. Just moved to Indiana a few weeks ago!

[@williestreeter4806]

Great video, question I'm getting power to my door switch and through my door switch but when I plug the black wire coming from the door switch to my board I get nothing but when I unplug it I get voltage in my wire which is not allowing My bored to be charged. Any suggestion thank you.

[@TheWonderfulEngima]

Dad and teacher I never had

[@ChrisBInPhilly]

Around 15 minutes into the video you disengage (pull the wire) on the high/ low limit switch. At what point does the control board detect a malfunction where as to to shut down the blower motor and systems? It appeared to stay running. Also in Philadelphia many homes have 14 wire with no ground; outlets,switches etc. not grounded. How would test power to ground in this scenario?

[@JerseyMikeHVAC]

Blower stays running for a minute or so on those limits. Everything else shuts down. The idea is to cool off the heat exchanger. Is the 14-2 the old cloth wire in metal similar to BX? There is a thin silver wire in that stuff easy to miss that acts as a ground but isn't hooked up like a wire. But at any rate, if it's in metal the metal itself is grounded back to the panel in most cases. If not, you still will get a reading, but it may not be accurate. That was the issue in this video when I was only reading 43 volts off the HSI. Old knob & tube wiring with no ground. Another ground option could be a nearby water line or a gas line.

[@nelsonhuynh]

Thanks a lot Sir!!

[@angelruiz9549]

You are an angel

[@realSamAndrew]

27:20 why does it read 43/44 volts? Shouldn't it be 120v? Unrelated: where do you buy that disk magnet with the loop on it?

[@JerseyMikeHVAC]

Not sure. I have to look deeper into it when I do maintenance on it next weekend. Furnace is working right now though. I got the magnet off of Amazon. www.amazon.com/DIYMAG-Neodymium-Countersunk-Diameter-Retrieving/dp/B08K75NB5G/ref=mp_s_a_1_19?dib=eyJ2IjoiMSJ9.wiQrIU576hlDu-9cJ0C7hAGZKLQdavuC193rj3Mib7-T2HGSPJabobDzS-p-sQJJ30KhYrdmRgODs_9WOIkQJlXfXCOAcDFYJF26kgUHPgLNSVuUYdmAl-edwmKcvapGhQ8coIQHYOZJybcw4UxfH2qFkZOxwWa8y97iQ_-hVox_hROv3RBgwJPr0ey3g-kuOJVWb_FvlxlPZREUYFyyIQ.jrYdYlvZt6ReYIK8TONtCOGZSYn8i8TCTrogqiZ2kM4&dib_tag=se&keywords=magnet+loop&qid=1725880116&sr=8-19

[@skilledblack4175]

Thank you🤙🏿💪🏿🙏🏿

[@mitchdenner9743]

Why were you getting only 43 volts to the hsi from black to ground? Should be 120v , no?

[@JerseyMikeHVAC]

Yeah I'm going to look deeper into it when I do maintenance on it this weekend.

[@kastenusa]

🙌 finally new video 👍.

[@JerseyMikeHVAC]

Yes! Feeling rusty!

[@kastenusa]

@@JerseyMikeHVAC how is your new location? I hope everything well

[@JerseyMikeHVAC]

Thank you. Everyone is loving it so far. It was a good move for us.

[@lillyinthefield2787]

Can you recommend the best book for a newbie tech i just started riding with techs as a helper but I want to learn faster on my own any good book you can recommend the techs are not showing me enough each day I feel ?? Any help😢

[@JerseyMikeHVAC]

Jot down the model numbers of the units and find the manuals online. Read through them and especially study the wiring diagrams. If there is anything you're stuck on or can't figure out, ask the techs. That's better than any book.

[@lillyinthefield2787]

@@JerseyMikeHVAC Copy that 🫡🫶🏾

[@OmengSumilo]

❤

[@Jimmyjimjimjim]

Hey Vern!