How To Use Diagrams to Learn, Diagnose & Earn More

[@davidkirchner4763]

I just hit my 4 year anniversary in HVAC. Every time I watch one of your videos, I learn something new. Thank you for helping me get better at my career.

[@LouisS-cs7bh]

I think you hit a nerve!! This is a topic I think we all could improve on and gather additional knowledge. Can’t wait for the next one!! Appreciate the effort you put into these videos. It takes time and thought on how to present and prepare so your audience can follow and understand what you’re explaining. Excellent!!

[@JerseyMikeHVAC]

Thank you!

[@rcf8367]

Excellent job, great for the new techs!

[@AerialHeatingAir]

This has to be the greatest explanation of wiring I've viewed on KZbin.

[@JerseyMikeHVAC]

Thank you!

[@resurgensix]

I completely agree!

[@Vince-m2m]

That was a great explanation

[@jacquessalem8776]

Jersey Mike you rock, you got me by the time you started your simple yet thorough explanation of a very sophisticated subject. Then I hit the subscribe button. I'm a returning tech and after 20 year hiatus, a lot have changed. I'm 58 yo, it seems nobody wants to give me a shot even though I'd be willing to start at the bottom, after all I ran a general contracting biz which isn't too far from hvac. Any pointers would be greatly appreciated. I have my epa 608 universal certificate and several certificates from skillcat online courses. I'm motivated like a QB on a sunday afternoon. God bless you for sharing your knowledge with the world. I'm in Atlanta in case you know someone. Best regards!!!

[@garbo8962]

I was lucky in that I had an electrician dad & uncle that I would go out on jobs starting at ten years old. Yep I was the gofer & clean up boy first couple of years. Wired my first 3 way switch & start stop pushbutton by 15. I was lucky to work under a very talented patient older electrician who would rather you ask a question then screw up work. Later on I tried to teach young sparkies. To all of you young electrician & HVAC guys get good no get very good at troubleshooting. My dad used to say they can train a monkey to do most conduit runs but not to troubleshoot. I got more overtime then other guys because I was good at troubleshooting especially VFD'S. Never stop learning and do at least 15 hours of continuing education classes a year. Had to do an OSHA 10 Class to renew my electrical license the year before I retired and even after retiring attended 8 great yearly IAEI classes to keep up on the NEC until combination of Pandamic shutting classes down & the wife getting dementia.

[@HfJax]

I really appreciate you making this video, if you could make more how to read diagrams and trace wires through it would be great helping us new techs gains more knowledge and experience we need to serve out country better, I’m from Florida thanks

[@ManifestEminence7]

Please make a sequel! More components/more advance diagrams! Thank you

[@paulweber686]

Very clear and concise presentation, well planned and executed.

[@resurgensix]

Your tutorials are really helping me and my apprentice! The way you format things with color help even more because of my ADHD.

[@CrosswindSurfer]

Hey Mike. Recently had twin boys in nov. I needed to make a huge shift towards an actual career. Idk how other than the graces, and blessing of the Lord, but I got a job as a low voltage HVAC tech for a commercial company. No EPA, minimal HVAC experience. I cant thank you enough for making things make sense to a synesthetic learner like myself. Ill be watching all your videos. Thank you again!

[@JerseyMikeHVAC]

Thanks for watching. Welcome to HVAC and congrats on the twins!!!

[@elgkas9928]

Mike, every skill set starts with a foundation. This video is a great base for the foundation and I look forward to the next video. Schematics can be very overwhelming. I have printed out schematics and used color coded markers to make the circuits stand out. It makes it easier for me to understand how each circuit interacts with the others.

[@JerseyMikeHVAC]

Yes, Sir. A foundation video was exactly what I was aiming for. Way too big of a subject to tackle in one video. I used to use markers too, that's where I got the idea for using electricity graphics over the schematics in some of my vids. 👍

[@paulweber686]

@@JerseyMikeHVAC The electricity graphics are a huge help.

[@PrivacyOnelockkey]

Good stuff brother

[@dimitrisskordis7995]

Very good video, I have seen many so far this is one of my favorites, please keep it up, you are doing very well, and you have the gift of contagiousness!!

[@JerseyMikeHVAC]

Appreciate that! I'll keep 'em coming.

[@africaRBG]

you're a scholar and a gentleman! thanks for your efforts.

[@JerseyMikeHVAC]

Thanks so much for watching.

[@rhirwin10]

Well done explanation. Taking difficult topics and explaining them in a straightforward logical method is a great talent.

[@JerseyMikeHVAC]

Thank you

[@turnedearthdesign8678]

Another thing to remember so you don't have to memorize what type of switch comes in what position, is that all safety switches are wired normally closed. They monitor the systems and open when there is an issue

[@joebanks174]

More videos like this. Maybe progressively more complicated videos. Also I would have liked to see examination of the circuit powering the start winding. Good stuff

[@bshwin]

Thank You for the useful information

[@jamescopp9712]

Far as I've seen, you should be an accredited source for these 'cheat codes' and 'tech tips'

[@briancarlisi2224]

It finally clicked w/me regarding why a Nuetral is not needed w/ 240 thanks to your explanation! Thanks & keep your vids coming!

[@raylidell3613]

I agree with AerialHeatingAir. This is a great explanation of wiring. It hit me hard when you explained how the two 120volt lines act as each others neutral. Finally understood how this works. Thanks. Subscribed.

[@JerseyMikeHVAC]

Thanks for the sub! I'm going to be doing a follow up video that'll get into that a little more.

[@daleborg9070]

Great video Jersey Mike. I hope you continue with more videos progressively building on what we have learned here.

[@JacksLore]

This is really a great video open my eyes to so many things that I’ve been looking at that. I didn’t understand you have a gift and the way you speak and deliver this information and I can’t imagine how much time you put into putting this together. thank you keep up the good work.

[@JerseyMikeHVAC]

Thank you. Only really took me about 10 hours total to put this together. It's finding 10 hours of free time to do it that is can often take days or weeks to find sometimes! Just glad it's helping people out. That's the goal.

[@thrillerjames01]

Thanks, Jersey Mike. I’m in trade school right now and you making so much more simplified. I understand thank you. I shared this video with other trade Comrads.

[@JerseyMikeHVAC]

Appreciate that! Thank you. Feel free to reach out if you ever need some help.

[@teklesenbetgebreamlak7365]

Great Mike, nice presentation such easy to understand the wiring diagram

[@JerseyMikeHVAC]

Thank you

[@philljackson3063]

I love the way that you explain the theory and how you basically simplify the whole concepts and logics of working with in series and ladder diagram.thank you this was very much explicitly thought throughout the entire video

[@JerseyMikeHVAC]

Appreciate that doesn't go unnoticed. Thank you!

[@borshardsd]

Definitely a needed video. As a field tech, what I need from you, get ready to laugh, ***we need you to tell us how to read the schematic that disappeared or is half missing on the old equipment I have to work on*** lol Great job and keep it up

[@JerseyMikeHVAC]

Yeah pretty common issue. I take down the model number of the unit and check this link for manuals: www.manualslib.com/ I'll often find the schematics there. If not, try a general google search with model number and "manual" in the search terms.

[@borshardsd]

@JerseyMikeHVAC dang brother! Thank you for the comment. I agree there are ways to find the info =D just wanted to share a smile.

[@unabridgeddick6645]

I appreciate your lessons my brother.

[@rolandzeneli8920]

Love you video very good information

[@JerseyMikeHVAC]

Thank you, brother.

[@deanmartin1966]

Great video. Thanks for sharing.

[@ReneCaceres-s9k]

Great content, please keep it up.

[@Alex-y2p5u]

you have great videos. thanks so much

[@SeamusDaly-oc3yw]

Thank you Mike for sharing, very valuable information 👍

[@trevmint5615]

Great video. Can't wait for part two

[@barrybroderick5103]

Great vid love the channel 👍🏻

[@JerseyMikeHVAC]

Thank you

[@garbo8962]

Worked as an commercial electrician and worst schematics were pages of generic one size fits all POS prints. Would have dozen of options offered that were not on the machine I was troubleshooting. Hard headed Germans were great for having one person ordering the engraved plates, another making schematics then somebody making changes ending up that names in schematic were not translated to words on engraved plates. Would sit down on a slow day and cross out everything our equipment did not have on genetic prints. Had an Italian machine that schematic was in Italian. Took over a year to secure an English version. Some lazy day dick sparky left English prints on top of machine & cleaners threw them out. As soon as we got the English prints ( maybe 8 pages ) I asked that they take them some where and gave at least two copies made. They were probably 24 by 36".

[@JoeB3]

Really good job with this video

[@JerseyMikeHVAC]

Thank you

[@emmanuelliriano1862]

very nice work. thank you

[@JerseyMikeHVAC]

Very welcome.

[@boogieman6661]

This was terrific. Thanks for this.

[@dvanetta9410]

Great video, would you be so kind do do a video on how to correctly measure voltage in a control circuit

[@JerseyMikeHVAC]

Sure, I'll work that info into newer videos.

[@SoGQue]

My favorite channel

[@marcolanza5132]

You are an amazing teacher!! Great video!

[@JerseyMikeHVAC]

Thank you so much

[@mxcollin95]

Great video! Thanks for posting. 👍

[@guns-usa8564]

That’s a great way to explain things my boss just said read it I don’t think he knew how to read it lol sub for sure I want to see more just like this you took the time to explain things where I could understand being new to HVAC thanks for the video 👍🇺🇸

[@JerseyMikeHVAC]

Thanks for subbing. Really glad you're getting something out of it.

[@guns-usa8564]

I’m still watching your videos 👍 im Universal but I do maintenance for a property management company 348 units they all have the same damn system so I don’t get to work on gas because there all the electric single stage I’ve only been doing this 2 1/2 years never worked on gas and we fix everything but I want to do HVAC full time when Covid hit I was building for Honda in Ohio then hours were cut so bad I had to start all over so I need to learn as much as I can to get my pay I lost back I feel like had to start life all over again but what can u do just keep learning stay positive I’ll be 41 this year I need a good long term thing like I once had so I thank you for sharing your knowledge my boss don’t teach nothing basic stuff that’s it he might be happy knowing enough to get by but I like to educate myself in all kinds of things hard work pays off no work pays nothing if you know what I mean sorry just a little back story about myself wish my boss explain things like you do 👍

[@JerseyMikeHVAC]

@@guns-usa8564 I hear ya. I had to start over a few times myself in life, so I know the value of finding a good source to gain from in that journey. I plan on making videos and sharing all I know for years to come because I know there are people out there who need it just like you and I did or still do. Feel free to reach out if you ever have questions.

[@guns-usa8564]

I appreciate that I really do knowledge is power for sure I definitely want to learn more I’m still watching your video now lol how power moves through the AC system that’s cool how you made that schematic I’m sure you have a lot of people asking questions I don’t want to be that guy bugging the shit out of you but if you have the patience for a guy like me then I appreciate It I get a little confused on some of this but your videos break down definitely helps me understand more then just reading a book very helpful for sure I’m Jeff by the way nice to meet you 👍

[@JerseyMikeHVAC]

@@guns-usa8564 Same here Jeff!

[@Abbaskhan-l3d]

Basics and informative

[@miguelrojas3394]

Thanks Mike ,I really appreciate you sharing this videos.👌👏🙏

[@edwardnickerson6149]

Very helpful Thanks

[@JerseyMikeHVAC]

You're welcome

[@robertelmer7144]

Just a note on the initial light bulb circuit, the neutral wire is never interrupted by a switch. The hot wire always has the switch. Thanks

[@JerseyMikeHVAC]

Yes I know. Did it on purpose to prove 115v at the bulb even when the circuit was open.

[@jeanlawson9133]

Been having issues with the heating side of my HVAC heat pump.... Located the issue my HVAC guy bypassed the circuit board and I was looking at the Schematic and it was dirty so I took my dry hand made one swipe across the schematic and it disappeared 😮....So I still need to acquire one....I know it sounds like the dog ate my homework....I want put it back correctly. I have acquired a new circuit board. ,heat strips,blower , all check out well I am running Air as we speak... issue was blowing 3 amp fuse, was transformer. Haven't checked heat since fixing everything wanted schematic to correct before I went further. The HVAC guy has connected 3 or so wires to one going in towards compressor all taped together with a lot of electrical tape... That is what I want to fix. Because it had only one heat strip working... Your video are awesome by the way, that's how I got this far. From not😢 working at all. I spoke out of turn... I simply need a schematic, Where to get one... HELP

[@JerseyMikeHVAC]

Glad my vids are helping you. I get a lot of manuals I'm looking for right here: www.manualslib.com/

[@stevencossaboon3237]

Great video Mike. Thank you.

[@MrRoooodrigooo]

Gracias por enseñar 😮

[@obakpo88]

Thanks, very informative.

[@joejoeesqueda]

Amazing!!!

[@JerseyMikeHVAC]

Thanks!

[@hurcklynbrown2630]

Very informative

[@brianmcdermott2430]

Great info.

[@juanka5033]

Great teaching man

[@JerseyMikeHVAC]

Thank you!

[@HD-pc4id]

Great video

[@yanslabrada8904]

great video, thanks you !!

[@octavioaguirre3328]

great job

[@tommajor4995]

Great explanation!

[@lynncomstock1255]

6:30 the explanation of 230 volt system not needing a neutral is incorrect. The compressor is designed to operate on a voltage of 230 volts (Power applied across the compressor motor windings). Otherwise well done.

[@JerseyMikeHVAC]

Thank you. I understand we're talking balanced load vs. split phase, but considering the target audience, the balanced load explanation tends to be a lot easier for most beginners to conceptualize. I tried to explain split phase to a helper once and his eyes glossed over. lol.

[@Pete-rj6qh]

@@JerseyMikeHVAC

[@chuck7432]

Hi Mike. Have studied all your vids and have learned a lot. Thank you. My neighbor had some hvac work done due algae/mildew in pan. Now, here we have winter and summer. I talked to the tech, and he said their airflow was not good. We all have the same Goodman equipment. That said, I'm concerned I may experience the same issue. (I do periodically vacuum the condensate line and clean the traps. ) So the tech is coming out to do a " safety check" for 79$. He'll also check airflow. How do you check for correct airflow?

[@JerseyMikeHVAC]

Depends on what the technician meant by "airflow". Typically any mold issues directly related to fan speed will be caused by an improperly sized system for the residence (typically oversized, determined by a load calculation on the home) or a high fan speed coupled with an unusually high level of humidity being introduced somehow into the home (showers, cooking, aquariums, etc. with no ventilation like range hoods and bath fans). Outside of that, "airflow" would mean leaks or restrictions in the ductwork or unit; Blocked vents, dirty evaporator coils, leaks in the ductwork either allowing cool air to escape into a hot and humid environment creating condensation (water in the pan a common result), or on the return air side, leaks allowing a lot of hot, humid air to be sucked into the ductwork elevating humidity levels to a point the system cannot systematically reduce it and humidity always stays elevated. Pretty much anywhere hot and cold air can meet, and one of those two holds humidity. There are also other factors that can contribute not related to airflow directly, such a refrigerant leak. Colder than normal refrigerant lines due to low pressures can create excess condensation or can hinder the system's ability to remove humidity by not getting cold enough, which leads to mold as well. So pressures would need to be checked with gauges. That said, on a properly sized system without all of these other negative factors present, fan speed alone is not too often the lone reason mold occurs.

[@jeanlawson9133]

Really good video...

[@phillipjoy1305]

Great video 😊

[@Lemonades1321]

Great video 🎉

[@JerseyMikeHVAC]

Thank you 😁

[@robertmunguia250]

Great video! When the line traces back to run winding, confusing to see why wouldn’t it go to the start winding? It goes to common.

[@JerseyMikeHVAC]

To be honest, I never actually checked with a mutimeter to see if voltage is present at the T2 terminal with the contact open to confirm voltage is present through the full path of the run and common windings, but in theory some kind of voltage should be detected there. Maybe not 120 due to resistance, but something. The reason the motor doesn't run is because you need a full circuit to provide the current that actually creates the magnetic field that propels the motor. Voltage alone doesn't make the motor run.

[@robertmunguia250]

@@JerseyMikeHVAC so then the easiest path would be to go to common?

[@robertmunguia250]

Also I have a slant coil (Carrier) debating whether to clean it in the unit itself or remove it. Leaking water condensation too much on bottom.

[@JerseyMikeHVAC]

@@robertmunguia250 I would try inside the unit itself first. it's a lot of work to remove it, braze, vac, etc.

[@tonycastille8327]

Did you do a video on what temps on hvac equipment you like to see. I seen one and thought it was you but can not find it now. Thanks

[@JerseyMikeHVAC]

kzbin.info/www/bejne/pWPRY35mgLR7mqc

[@JayPatel-j9]

Thanks a lot ..

[@BigDripLip]

Good tips 👍🏾

[@harrycastro592]

Thanks master

[@Bill_CBR]

Well done. (nice sub's by the way) 🙂

[@JerseyMikeHVAC]

Thanks! 😁

[@wim0104]

thank you!

[@AlexGarcia-wq6bu]

Thank you again.

[@JP-sd2cw]

What confuses me is you can have 24v on your coil, but a safety is open on the neutral and it still won’t run…?

[@JerseyMikeHVAC]

If you look at the low voltage ladder diagram, you'll see the safeties are wired on Y which is the 24v side, so the voltage doesn't actually reach the coil on an open switch. But even if they were on the com, you need an electrical current to create the magnetic field that pulls the contactor in. You don't have current on an open circuit. Think of it like a water wheel. You can have one sitting in water but if the water isn't moving the wheel won't rotate.

[@JP-sd2cw]

@@JerseyMikeHVAC ok that makes sense, however if the safeties were on the neutral wire, would you have 24v at the coil and it would just not be doing anything? or would you not have 24v at the coil at all?

[@thereal_johnle]

Bravo please more on schematics :D and give us a test on it

[@ernestodiaz76]

Know can we talk about inverters boards and how to troubleshoot

[@borshardsd]

@@ernestodiaz76 know, not know. Lolol

[@JerseyMikeHVAC]

I've actually been trying to find a way to tackle this topic for a while now, which can be a little tough. You kind of have to zero in on specific systems to tackle diagnostics because manufacturers use different methods to control these inverter circuits. On the flip side, a broader concept overview isn't going to help much with diagnostic procedures for the same reason. So basically, I'm going to have to get into this with multiple videos, multiple systems and specialized testing tools at some point. But I definitely intend to do it.

[@ricktrogdon2332]

should always break 120 volt wire, not neutral

[@JerseyMikeHVAC]

At the 1 minute mark a note comes up on the screen stating switches are not on neutrals but I only did it here to make a specific point that needs to be understood in diagnostics.

[@ronniejuayno9679]

You can’t tap the neutral leg to switch it should be hot leg tap to switch to work the lights. That’s not on code book bro

[@JerseyMikeHVAC]

Yes, thank you. I'm not only well aware of this, but I also explicitly stated in the video this is not how it is normally done and further stated I was only doing it to make a point for educational purposes, which is in HVAC you can have situations where power is going to load without switches prior to the load.

[@BridgeportConnecticut]

this is like taking a course

[@ReneCaceres-s9k]

👍

[@randomyoutuber6992]

Too easy, next lesson

[@claytonclark6851]

Great video, thank you!

[@JerseyMikeHVAC]

Welcome!

[@360hvac5]

Great video

[@JerseyMikeHVAC]

Thank you

[@giovannimoran8653]

Great video