8:07 I like how it appears to specifically be a screwdriver with a broken tip being used to discharge the capacitor. Even broken tools can still have uses! I'm also a little surprised they actually showed what everyone actually uses to discharge a capacitor instead of using a resistor or dedicated capacitor discharge tool (which would be the "correct" way to do the job, but I don't know a single person that's ever done it that way).
This is great; and I love the HVAC School videos - I have gained a lot of helpful knowledge here... but I have to say; discharging a capacitor with a screwdriver is not good practice. If the goal is to promote safety, this should always be done with a multimeter set to the highest voltage setting.
When using the ohmmeter funciton of your multimeter to check resistance or continuity, a low ohm's reading or audible beep, doesn't necessarily mean that you have a good circuit or good path. It only means that the circuit is complete, but a complete circuit is not necessarily a good circuit or good path. The ohmmeter only uses about 5 volts and a tiny current to check resistance and continuity, so it may be able to carry the tiny current but not a larger one. If you come across a circuit and you test it for resistance or continuity and get a low ohm's reading or hear the beep, and the load (e.g. fan, compressor, contactor, relay) still doesn't work, use a test light or another known good load that draws the about the same amount of amps. If the light bulb or known good load doesn't work, then check the circuit wiring and connections for faults. This could be the result of a loose connection, corroded connection, corroded wiring, or damaged wiring. The wire in the circuit may be made up of 20 thin individual strands wrapped in insulation but it can get damaged where 19 of those thin strands get cut and only 1 thin strand remains. This 1 thin strand will pass the resistance test by giving you a low ohm's reading and also pass the continuity test by making the audible beep, but will not be able to carry the current required for the load in the circuit.
This is the powerfull education and informative way ...thx you a lot Brayn .... I am not Hvac technician but I am interested in and I am planing to be .
One bad thing about digital meters especially better ones with high impedance have to be careful when measuring AC voltages. Numerous times while only having one probe touching an energized wire and other lead not connected could receive a reading over 80 volts especially in damp locations.
Megaohm meter.. you mean an insulation resistance tester/meter. What do you mean by a Megaohm meter, what are you testing? Your testing the Insulation of the conductors with a high voltage. looking for leakage. Your testing the Insulation resistance. Where you may be getting confused is one of the original manufactures of this type of meter is called Meggar and they still make some of the best meters today. And its often called a Meggar test because of this. But this is just industry Jargon and incorrect, It is not a Meggar test . Viewers, this test is performed by an Insulation resistance tester. Not a Megaohm meter.
I always love the 3D videos. It's like Saturday mornings, but with Heating and Air cartoons.
Ah yes. Like the old Reboot cartoon.
8:07 I like how it appears to specifically be a screwdriver with a broken tip being used to discharge the capacitor. Even broken tools can still have uses! I'm also a little surprised they actually showed what everyone actually uses to discharge a capacitor instead of using a resistor or dedicated capacitor discharge tool (which would be the "correct" way to do the job, but I don't know a single person that's ever done it that way).
That's because you don't pay for the capacitor when it fails. If you did, you most likely would use a resistor or your voltmeter to discharge it.
This is great; and I love the HVAC School videos - I have gained a lot of helpful knowledge here... but I have to say; discharging a capacitor with a screwdriver is not good practice. If the goal is to promote safety, this should always be done with a multimeter set to the highest voltage setting.
When using the ohmmeter funciton of your multimeter to check resistance or continuity, a low ohm's reading or audible beep, doesn't necessarily mean that you have a good circuit or good path. It only means that the circuit is complete, but a complete circuit is not necessarily a good circuit or good path. The ohmmeter only uses about 5 volts and a tiny current to check resistance and continuity, so it may be able to carry the tiny current but not a larger one. If you come across a circuit and you test it for resistance or continuity and get a low ohm's reading or hear the beep, and the load (e.g. fan, compressor, contactor, relay) still doesn't work, use a test light or another known good load that draws the about the same amount of amps. If the light bulb or known good load doesn't work, then check the circuit wiring and connections for faults. This could be the result of a loose connection, corroded connection, corroded wiring, or damaged wiring. The wire in the circuit may be made up of 20 thin individual strands wrapped in insulation but it can get damaged where 19 of those thin strands get cut and only 1 thin strand remains. This 1 thin strand will pass the resistance test by giving you a low ohm's reading and also pass the continuity test by making the audible beep, but will not be able to carry the current required for the load in the circuit.
Your ability to balance that video and come to question of asking and wanting not matching great video.
Need a Multimeter 102 and 103 tutorial! This one was very helpful. Encourage everyone to subscribe and ✔️ out their app!
This is the powerfull education and informative way ...thx you a lot Brayn .... I am not Hvac technician but I am interested in and I am planing to be .
I'm gonna share this with some new guys.
the video ive been waiting for! love the animations and explanation! thank you!
Thanks, Merry Christmas and a happy new year
Great lesson on the meter and you explain everything so well, thank you.
Thank you, you might have just gave me a hint I needed for a practical.
Thanks for the 3D explanation is awesome and easy to understand, thanks again Brian 🙏💯
i like the hopscotch method
Hey what a great video .. by any chance do u sell training videos .? Or any training books?
Thank you for another great video!
Thank you
Thank for information
wonderful video
Excellent vids.
. Amped on those rings of flux
Excelente, muchas gracias.
Good stuff…thank you sir!
The Leads measure DIFFERENTIAL between both leads.
We want more 😂👏🏾👏🏾
As always I like your videos nice 3D shows
Great vid
awesome
One bad thing about digital meters especially better ones with high impedance have to be careful when measuring AC voltages. Numerous times while only having one probe touching an energized wire and other lead not connected could receive a reading over 80 volts especially in damp locations.
Can you do dc voltage plz
Were can we buy this 3d video training set?
what does the zero in rush mean ?
❤🤙
Good
Please make scotsman ice machine ac 106/126 high evaporator temperature alarm rectification
Probably not gonna happen.
Google the service manual for the model. Everything you need to know is in there.
Megaohm meter.. you mean an insulation resistance tester/meter. What do you mean by a Megaohm meter, what are you testing? Your testing the Insulation of the conductors with a high voltage. looking for leakage. Your testing the Insulation resistance. Where you may be getting confused is one of the original manufactures of this type of meter is called Meggar and they still make some of the best meters today. And its often called a Meggar test because of this. But this is just industry Jargon and incorrect, It is not a Meggar test . Viewers, this test is performed by an Insulation resistance tester. Not a Megaohm meter.
There’s an article on Wikipedia if you need more information on them. Just google “megaohmmeter”.
It's you're not your and it's Megger not Meggar. Check yourself before checking others.
👍