Diagnosing Open & Short Circuits

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  • เผยแพร่เมื่อ 24 พ.ย. 2024

ความคิดเห็น • 106

  • @ALLin-one1
    @ALLin-one1 4 ปีที่แล้ว +9

    U never miss

  • @Xxxcappie23
    @Xxxcappie23 2 ปีที่แล้ว +5

    Bravo. The quality of this teaching is due your quality of the understanding of the topic. Well delivered .

  • @carlellis9647
    @carlellis9647 3 ปีที่แล้ว +4

    I've been in the high-tech industry for over 20 years and this is one of the best videos on basic electrical troubleshooting I've seen in my life.
    Well done and congrats!

    • @juggerfox
      @juggerfox 3 ปีที่แล้ว +2

      Well good for him but 20 years? I'm scared now of what they're doing out there...

    • @samuelpowell87
      @samuelpowell87 2 ปีที่แล้ว +1

      Agreed

    • @justaman3817
      @justaman3817 3 หลายเดือนก่อน

      I’m a master technician with just 5 years total time and I learned this and MORE my first year. I’m scared to ask what you’ve been doing for 20yrs.

  • @zacsolar2073
    @zacsolar2073 4 ปีที่แล้ว +5

    Why is this channel still not over 100k subscribers? People should be sharing this channel to all home owners.

    • @kevinknight777
      @kevinknight777 2 ปีที่แล้ว +1

      Lol a year late but no, this isn't a DIY page

  • @briangagen8436
    @briangagen8436 2 ปีที่แล้ว +2

    Not really studying HVAC but the tips given in this video has helped me understand the difference between Open and Short.
    Pre-she-ate-it!!!

  • @steveneldridge452
    @steveneldridge452 2 ปีที่แล้ว +4

    I am an on-going electrical/electronics student. This clip had some nice clarity, thanks.

    • @christaylor4786
      @christaylor4786 8 หลายเดือนก่อน

      Awesome! Keep learning from anywhere you can! Lots to learn and it gets a bit overwhelming but it can take you far. 😊👍

  • @ghost37666
    @ghost37666 3 ปีที่แล้ว +6

    Not here for HVAC but cars, but let me tell you I learned what I was looking for.

  • @Electronzap
    @Electronzap 4 ปีที่แล้ว +11

    Definitely important to understand open versus short circuit. Good explanation!

    • @HVACS
      @HVACS  4 ปีที่แล้ว +1

      Glad it helped!

  • @AndyHoltOutdoorUniversity
    @AndyHoltOutdoorUniversity 4 ปีที่แล้ว +9

    That is a lot of learning packed into 8:40. Nice job!

    • @HVACS
      @HVACS  4 ปีที่แล้ว +1

      thanks

  • @MyScotty7
    @MyScotty7 ปีที่แล้ว

    Sir you explain your video so well that as a novice that I now understand circuits and testing much better.Thank you from a new subscriber!

  • @resurgensix
    @resurgensix 3 ปีที่แล้ว +1

    Now this makes complete sense to me. And the test features killer Much appreciated. Saving this for reference for sure.

  • @ApartmentMaintenance
    @ApartmentMaintenance 4 ปีที่แล้ว +2

    Great video & explanation Brian 👍

    • @HVACS
      @HVACS  4 ปีที่แล้ว

      Glad you liked it!

  • @peachesnhose5884
    @peachesnhose5884 3 ปีที่แล้ว +1

    Bro good job. Concise. I learned a bit. No more shocks for me.

  • @briancarlisi2224
    @briancarlisi2224 4 ปีที่แล้ว +2

    Good explanations. Thanks Bryan!

    • @HVACS
      @HVACS  4 ปีที่แล้ว

      You're welcome!

  • @katoria69
    @katoria69 11 หลายเดือนก่อน +1

    For a dum dum like me I want to thank you for repeating the important parts a few times. You kinda talk a little too fast for me so I'd have to rewind several times but this time I didn't have to do that. Thank you!

    • @pamelabraman7217
      @pamelabraman7217 3 หลายเดือนก่อน

      Go to settings and change the playback speed. I change it all the time

  • @tedlahm5740
    @tedlahm5740 4 ปีที่แล้ว +3

    Good information. basic but important. Thank you.

    • @HVACS
      @HVACS  4 ปีที่แล้ว +1

      Glad it was helpful!

  • @mostlikelywedoitservices6926
    @mostlikelywedoitservices6926 3 ปีที่แล้ว +1

    Nice Job. Well done.

  • @pierrebelarge892
    @pierrebelarge892 8 หลายเดือนก่อน

    Well done, easy to follow.

  • @gwalker201
    @gwalker201 8 หลายเดือนก่อน

    INCREDIBLY HELPFUL, thank you.🤙

  • @beztc
    @beztc 2 ปีที่แล้ว

    Lively, educational and very helpful thanx

  • @a11ten071
    @a11ten071 3 ปีที่แล้ว +1

    Great Job as usual very much appreciated.

  • @MrWzeljunior
    @MrWzeljunior 3 ปีที่แล้ว +1

    Awesome info. I was subscribed already, so I subscribed again!

  • @alelooooooya
    @alelooooooya 2 ปีที่แล้ว

    ...a house with 5 DB boards and several light and plugs that are not electrified from what I could see, such an enigma.

  • @badgerfool1980
    @badgerfool1980 ปีที่แล้ว

    I think the confusion comes from the word "open". In normal parlance what we usually mean is that traffic can flow, if a store or a venue is open it means you can go in and out as opposed to when it is closed when you cannot. Open means GO whereas closed means STOP, which is the precise opposite of what we mean when we discuss electrical circuits. If a circuit is open it means electrons CANNOT flow.
    Some beginners may benefit from thinking about a switch when discussing open circuits, if you imagine a switch being open it makes a little more sense as to why electrons cannot flow.

  • @johnmarch5969
    @johnmarch5969 3 ปีที่แล้ว +1

    Very helpful video!

  • @alsonycart7269
    @alsonycart7269 2 ปีที่แล้ว

    u snapped my g . very helpful. thanks

  • @michaelcostello6991
    @michaelcostello6991 3 ปีที่แล้ว +3

    I would have liked to see you connect the multimeter at the terminals of the timer to show how to read the short or open. Just for folk with poor electrical knowledge.

  • @Mr1984eL
    @Mr1984eL ปีที่แล้ว

    Great info!!!

  • @ALLin-one1
    @ALLin-one1 4 ปีที่แล้ว +1

    Very useful and I like the podcaste

  • @somphothbsiratsamy3748
    @somphothbsiratsamy3748 ปีที่แล้ว

    The continuity is in between the alternator ground wire

  • @juniorjeps0813
    @juniorjeps0813 2 หลายเดือนก่อน

    Excellent 👍🏻👏🏻👏🏻

  • @MrChipBryant
    @MrChipBryant 4 ปีที่แล้ว +1

    Thank you Professor!

    • @HVACS
      @HVACS  4 ปีที่แล้ว

      You are welcome!

  • @sharifskijr.1257
    @sharifskijr.1257 11 หลายเดือนก่อน

    You’re awesome!

  • @pablorodriguez9390
    @pablorodriguez9390 2 ปีที่แล้ว

    awesome video

  • @donnierobertson3088
    @donnierobertson3088 4 ปีที่แล้ว +1

    Nice job and video

  • @brianmcdermott1718
    @brianmcdermott1718 4 ปีที่แล้ว +2

    Great info.

    • @HVACS
      @HVACS  4 ปีที่แล้ว

      Glad you think so!

  • @moisessalazar2417
    @moisessalazar2417 3 ปีที่แล้ว +1

    Very informative

  • @GaryLabandter
    @GaryLabandter 10 หลายเดือนก่อน

    Thx 4 the video! U talk a little bit 2 fast 4 me but I'll watch it again 😊

  • @manuelfermin3882
    @manuelfermin3882 4 ปีที่แล้ว +2

    iI like your videos you are a goood tech.

    • @HVACS
      @HVACS  4 ปีที่แล้ว

      Glad you like them!

  • @antoniogomez3615
    @antoniogomez3615 2 ปีที่แล้ว

    THANK YOU!!!!!!

  • @hkhsm359
    @hkhsm359 4 ปีที่แล้ว +1

    Nice video.

  • @rcrallen6213
    @rcrallen6213 ปีที่แล้ว

    Great habit to repeat the concept/principle/rule a time or two. (Can you teach my grade school teachers how to teach like this??)

  • @orkhansafarli5992
    @orkhansafarli5992 3 ปีที่แล้ว +1

    Thanks for video, but I would have a question to you.
    When I was checking pins of EGR to see if there is positive and negative in each pins, but I saw that there were both Positive and Negative sides on the Same Pin. I didn't understand that if it was a short circuit or How?

  • @henrybartlett1986
    @henrybartlett1986 4 ปีที่แล้ว +1

    Excellent.

    • @HVACS
      @HVACS  4 ปีที่แล้ว

      Thanks for listening

  • @ermuhambetcalmenov8104
    @ermuhambetcalmenov8104 4 ปีที่แล้ว +1

    Thank u a lot

  • @samuelpowell87
    @samuelpowell87 2 ปีที่แล้ว

    Thank you.super

  • @roverandmorerestore7266
    @roverandmorerestore7266 2 ปีที่แล้ว

    Here as a commercial appliance technician

  • @A1phamega
    @A1phamega 3 ปีที่แล้ว

    that's a lot of information!

  • @FireAlert
    @FireAlert 4 ปีที่แล้ว +2

    explained well

  • @patrickjones8255
    @patrickjones8255 8 หลายเดือนก่อน

    I got a drop down light fixture emitting an ozone smell even with no bulb in. With the bulb in it flickers. The switch panel on the wall crackles when turning on and off, but it's actually the switch right next to the one that controls the light with the ozone smell that does that. The breaker is not tripped. Do I have a short circuit in the switch panel?

  • @ALLin-one1
    @ALLin-one1 4 ปีที่แล้ว +1

    Very vivid

  • @johnsutter1497
    @johnsutter1497 4 ปีที่แล้ว +2

    When you wire nut those wires where do you put the test leads because they are a distant away from the thermostat to the furnace

    • @najeebalyafai348
      @najeebalyafai348 3 ปีที่แล้ว +1

      You put both leads either by furnace or by thermostat.

    • @thomasanderson6008
      @thomasanderson6008 2 ปีที่แล้ว +1

      That’s why he says to do it this way because of the distance many times you can’t run ohms meter to both sides of a wire, so by disconnecting the wires on both ends, and wire nut them all together on one end, you test wires on the other end. So you then place ohms meter leads wire to wire and since they are all connected on the other end, they should all give the same reading testing 1 wire at a time to each of the other wires, when testing for an open circuit or broken wire in the casing. If testing for a short circuit in the casing where 2 wires are broken & arcing together you would disconnect all wires and keep them separated on both ends, and test one wire at time line to line you should have the opposite result with zero ohms. Hope that make sense, when wire nut together the other end should all have roughly the same ohms on any 2 line to line, & when separated on other end there should be no ohms on any 2 line to line. Hopefully I answered your question.

    • @thomasanderson6008
      @thomasanderson6008 2 ปีที่แล้ว +1

      @John Sutter
      If you wire nut at the furnace you test line to line at the thermostat. If you wire nut at the thermostat you test line to line at the furnace, but disconnect all wires on both ends before placing wire nut.
      Hopefully this straight to the point answer is clear compared to my long explanation, and directly answers your question.

  • @9bboy0lukk36
    @9bboy0lukk36 6 หลายเดือนก่อน

    I was looking for a grounded harness on traulsen reach in couldn’t find it. I’d ground out moved the wire n lose it. It kept tripping breaker but not immediately usually after an hour or so then boom it’s trip

  • @ALLin-one1
    @ALLin-one1 4 ปีที่แล้ว +2

    Teacher with full respect I downloaded the hvac school app is very cool and with alot info but the tips and tech part when I select any part of it it crash and stop working I sended report why is acting wired but only in the > tech tips I hope u fix that part it has alot of important content which I was asking me self

  • @somphothbsiratsamy3748
    @somphothbsiratsamy3748 ปีที่แล้ว

    It’s a higher current cause the connection is being leached from an open wire

  • @BourneThisWay
    @BourneThisWay 2 ปีที่แล้ว

    So I had an interesting problem happen recently. I installed a new AC unit in my car and not even a day later, the circuit board in the AC unit had a hole burnt into it. I checked my AC fuses and relay and neither of them were blown. Does that mean that a problem occurred before the fuse box and relay box closest to the battery? The AC was also off when it happened.

  • @oscarmontalvan6866
    @oscarmontalvan6866 3 ปีที่แล้ว

    Great video t.y 📹👍

  • @JeffNeely-m2q
    @JeffNeely-m2q ปีที่แล้ว

    What's the stuff that comes out of everything on that board

  • @maxwarfield6699
    @maxwarfield6699 3 ปีที่แล้ว +1

    At around the 5:00 minute mark, you say there should be no connection between the isolated wires and ground, so would you set the DMM on continuity or resistance mode? And then what? Place the black probe on the case [a metal surface] of whatever it is you are working on, and the red probe on one wire, at a time - if the DMM beeps [on continuity mode] that is bad and if the resistance is low [on resistance mode] that would also be bad, as it indicate a short to ground? Did I get that right? Sorry, if this question is all over the place. I’m just a hobbyist and work mostly on pcb circuits, small stuff. Please reply. Thank you

    • @meabob
      @meabob 3 ปีที่แล้ว

      You got it right

  • @bushidoboxer9732
    @bushidoboxer9732 4 ปีที่แล้ว +2

    at 3:23 and 5:12 why does he put a marette on all the wires then take it off? what is the purpose of that. At 4:05 how would you tell if there is a short? would you get a measurable resistance with it disconnected at both ends? I am an hvac student and have used an ohmmeter before.

    • @HVACS
      @HVACS  4 ปีที่แล้ว

      Noted! will answer in Q/A video

  • @alelooooooya
    @alelooooooya 2 ปีที่แล้ว

    SO much incoming information....now picture it: an old farm house from the 60's, trying to figure out with certain sockets have no power or why certain light fixtures are not making our bulbs shine... so maddening not knowing the different DB boards.

  • @PogueMahone00
    @PogueMahone00 ปีที่แล้ว

    If it’s broken it will ring out to OL?

  • @emmanuelsuazo1318
    @emmanuelsuazo1318 3 ปีที่แล้ว +1

    I need help here. I’m checking ohms between a wire and ground and I’m getting 8k ohms. Does this mean I have a short?

    • @meabob
      @meabob 3 ปีที่แล้ว +1

      Without knowing what you're checking you could have a bad connection if it's meant to be grounded, or it could be that it's going through a load, or that the wires have rubbed together and have corroded. I'd double check that you are checking the correct wires as well.

  • @PogueMahone00
    @PogueMahone00 ปีที่แล้ว

    So open you want low resistance reading but no OL. Short you want OL but no low resistance reading?

  • @somphothbsiratsamy3748
    @somphothbsiratsamy3748 ปีที่แล้ว

    And now there is a short blowing fuses indefinitely, I have to trace multiple and match multiple wires

  • @JeffNeely-m2q
    @JeffNeely-m2q ปีที่แล้ว

    What is that stuff and would it mess it up

  • @johnlangley6449
    @johnlangley6449 4 ปีที่แล้ว +2

    Thanks I need this electric in general is weak point for me

  • @somphothbsiratsamy3748
    @somphothbsiratsamy3748 ปีที่แล้ว

    I have a positive touching my ground cause my alternator ground fusible link keeps popping

  • @atrapasuenosdream3017
    @atrapasuenosdream3017 3 ปีที่แล้ว +1

    It's funny because you repeat yourself 1000s times but thats how we learn

  • @somphothbsiratsamy3748
    @somphothbsiratsamy3748 ปีที่แล้ว

    I bought a car where they actually bunched colored wires together, just found it after 3 years

  • @Sc19869
    @Sc19869 ปีที่แล้ว

    So low resistance in continuity is good? And low resistance is shorts is bad.

  • @somphothbsiratsamy3748
    @somphothbsiratsamy3748 ปีที่แล้ว

    Teaaach meaaaaaa!!!!!

  • @ALLin-one1
    @ALLin-one1 4 ปีที่แล้ว

    Cool

  • @Shane_B46
    @Shane_B46 2 ปีที่แล้ว

    Obviously you aren’t a mechanic but would a short in a wire cause something to work when it’s off? My car is trying to start on its own and everyone is telling me a short in a wire to the starter…

  • @somphothbsiratsamy3748
    @somphothbsiratsamy3748 ปีที่แล้ว

    So I just have to separate it from the bunch. Omg

  • @andygalindo8978
    @andygalindo8978 4 ปีที่แล้ว

    My brain hurts

  • @samsmith2939
    @samsmith2939 ปีที่แล้ว

    Confusing

  • @TheClascaster
    @TheClascaster 3 ปีที่แล้ว +1

    Damn speak too fast lol, but makes sense

  • @owenkarre1846
    @owenkarre1846 ปีที่แล้ว

    Slow down

  • @PaxTecum777
    @PaxTecum777 3 หลายเดือนก่อน

    SLOW DOWN .....YOU TALK TOO FAST FOR SOME PEOPLE ..BLAH BLAH...YOU EXPLAIN GOOD BUT TALK TOO FAST.