3 Methods to Test HVAC Electrical Switches with a Multimeter!

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Күн бұрын

In this HVAC Training Video, I show 3 Methods That HVACR Technicians Use to Troubleshoot Switches in The Field! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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Пікірлер: 73

@isaachall2831 6 ай бұрын

I’m a 4 month hvac apprentice and your videos help me a lot when I don’t understand certain things. Thanks for being an incredible teacher!

@mikeglide1292 11 ай бұрын

I've been doing this for 25 years. This was a excellent tutorial! I'm going to share this at work. So much good information.

@PBS-nm1uu 2 жыл бұрын

this is one of the best explanation, keep it coming.

@dylandrymond3839 2 жыл бұрын

Best teacher on the internet as of today. If you have a chance to get his book I would highly recommend.

@procandie69 Жыл бұрын

HOW GREAT IT IS TO SEE SHARING YOUR STILLS WITH US ALL. THANK YOU

@acservicetechchannel Жыл бұрын

My pleasure!!

@charleswilson6872 2 жыл бұрын

Whoever thumbs down this video stop it! Great video

@BartSimpson-nr1dy 2 жыл бұрын

You just encouraged others to thumbs down 👎

@steve87ish 2 жыл бұрын

Charlie...your inept attempt at intimidation is hollow and very "pussy-like" you stop it!

@fleurdebreezeacheatingllc2573 2 жыл бұрын

Obviously there will always be clowns. Like the 2 who commented before me

@BartSimpson-nr1dy 2 жыл бұрын

@@fleurdebreezeacheatingllc2573 - the best way to encourage someone to do something is tell them to stop. I understand you are limited in your ability to figure the simple things in life. The best thing to say is nothing. But then, there’s always a stupid like you

@jacobmercer7526 2 жыл бұрын

It's sad you can learn more from a video than from an instructor. This video makes it seem so easy which is great

@Wren33 2 жыл бұрын

Goodfiy.is.it.fun

@realSamAndrew Жыл бұрын

Which instructor did you have that didn't do so well?

@kyleharvey7988 Жыл бұрын

Not sad, it's awesome!!

@carloscedeno5700 11 ай бұрын

😂 I think GREG is some HVACR demi god!

@badassgrower 2 жыл бұрын

If you parallel across a switch you will get a 0 reading with power. The meter acts as the resistance for the voltage , can confuse the hell out of people ……. That’s why hopscotch method is best practice , always grab the neutral in circuit and move along each component like in video . Great 👍 video CHRIS

@manny_3926 2 жыл бұрын

This dude is a beast!!!!!! These latest videos he’s been making and book is something new been following for years and it just gets better and better with time

@mrsean209 2 жыл бұрын

You're a great teacher. I bought your book just to support you.

@Wren33 2 жыл бұрын

Ok 👍👍👍👍👍👍👍 you.jay

@salvatoremagarelli4491 2 жыл бұрын

My HVAC go to guy ALWAYS detailed Clear Explanation and Great Visual

@terrymitchell3145 2 жыл бұрын

That Cove base in that room you’re in really looks good ,whoever did it did a really nice job !

@AG-tg9in 2 жыл бұрын

Haha that big smile on his face before starting to talk lol glad to have you back sir 🍻. Let’s get started 🧐🤜👍👌

@KavinSBS 2 жыл бұрын

You are the best, I hate to say i love you, but you are teaching me a lot, thank you so much, Good bless you.

@edilsonserafim4784 2 жыл бұрын

One of the best instructor

@MrCedmac123 2 жыл бұрын

Awesome job Craig!

@giovanycardenas8842 2 жыл бұрын

Thanks for the advice

@JeremyChan 2 жыл бұрын

👍 Great training video, as always

@eman3208 2 жыл бұрын

another great video tech, thank you!

@shine-cg9uf 2 жыл бұрын

That's was great information. 👍

@deanmartin1966 2 жыл бұрын

Great video. Thanks for sharing

@thesilentonevictor 2 жыл бұрын

Great tech tip

@iShujaat 2 жыл бұрын

I wish you were my teacher at school

@pabloescobar7595 2 жыл бұрын

Jesus, this is so clear ,thanks

@brandonblack3353 6 ай бұрын

Not here for the HVAC at all really although nice to learn. 😂 I just came for the AC voltage testing refresher as I’ve been living in a DC voltage world for so long. Great instructional video made easy to learn and not too rushed. Outstanding! Excited to subscribe and see more! Thanks!

@LuisRamos-rw5yu 2 жыл бұрын

Keep up the good work

@ahmedhussein8626 Жыл бұрын

thank you

@henrysaracay3881 2 жыл бұрын

I really learned a lot with ur videos , I almost finished the 152 videos. Of course I have ur book too. Thanks n keep the amazing job

@acservicetechchannel 2 жыл бұрын

Wow thats awesome! there are 480 videos total and you can see the 100 videos that correlate to the book at www.acservicetech.com/videos

@Xxxcappie23 2 жыл бұрын

Great vid

@jkbrown5496 2 жыл бұрын

With method 3, if you see a voltage across the switch that is also an indication of pitting and corrosion on the contacts. Actually more reliable than testing the disconnected switch since the resistance may be higher with the higher operating current flow. This is more significant in low voltage circuits as losing 5 or so volts across a switch has more impact at 12 or 24 v than at 120. But even at line voltage that voltage drop across the switch with load current is heat in the switch and lower operating voltage for the load, both of which will likely mean failure in the future.

@cartago494 2 жыл бұрын

Thank you. Very important information. Thanks.

@hafizengineeringworks816 2 жыл бұрын

Sir I love you ❤️

@indiantraveller194 Жыл бұрын

Good

@jeffwang2012 2 жыл бұрын

One question: uei dl489 , field piece sc640 which one is better for hvac daily job? Thanks

@johnvirgilbasto362 2 жыл бұрын

Hi here from Guam, I hope to buy ur mainly electrical and control troubleshooting book in the future sir, thanks alot

@alshahriari4872 Жыл бұрын

I have r 22 goes to vacume fast I can't find video about this can you explain or make one thanks

@butlerstouchHVAC Жыл бұрын

so OL neans its good correct?

@stephwaylonwells3218 2 жыл бұрын

👍

@Boxinglanguage3482 2 жыл бұрын

👍👍

@dreadone6894 2 жыл бұрын

2:45 I recall being taught that one should never measure resistance when voltage is present. That the multi meter could blow up. What say you?

@ericallen3006 2 жыл бұрын

He doesn't apply voltage to the 120v side where his meter is connected. He was just checking continuity through the switch. But yes I believe you are correct, you don't want to check ohms while voltage is applied.

@hectorriveraatiles6594 10 ай бұрын

💯🤙

@pizzle1011 2 жыл бұрын

👏🏾👍🏾

@russellbarnes7732 2 жыл бұрын

That's curious you made a statement that the method of reading across the switch is use the least I use that method all the time. Maybe it's because I work primarily on commercial equipment

@Icytits 2 жыл бұрын

I work primarily on resi and that's the method I use the most.

@deanburke3041 Жыл бұрын

Good way to measure to common so you can't fool yourself to think 0 volts across the terminals means you have voltage present.

@bryanleofarmore7697 2 жыл бұрын

What brand is your clampmeter sir?

@mitchellarmyguy2515 2 жыл бұрын

Looks like a UEI 5g

@TheMaster5150 2 жыл бұрын

UEI DL429B anniversary addition

@thembones12 2 жыл бұрын

HVAC Switches: 2 wires = ON or OFF...When switches are OFF you got voltage between 2 wires across to the switch, needless to say switch is Open (24 or 120 volts) when switches are ON there would be no voltage (or very little voltage or OL) 😎🤞😂 Note: When measuring a live wire with a multimeter voltage there would be no voltage between 2 points close to each other. Takes me time to comprehend this switch rationale - when switch is OFF there would be voltage across terminal but when ON there would be no voltage across terminal.

@deanburke3041 Жыл бұрын

There could be volts unequal across old, pitted terminals.

@robertmunguia250 2 жыл бұрын

is there a book on electrical switches? Testing switches and wiring?

@richardlavoie6833 2 жыл бұрын

I just got a new 24000 btu York side discharge....................When i stan in front the air flow is direct by the fan inside the condenser.............Is it normal??? when i saw a Trane side discharge or a Carrier the air flow goes outside by the fan.. I think it is very dangerous for a personne with long hair, who can have his hair stock in the shaft of the electric motor!!!! Sorry my english is not very good. The technicien wiil come back tomorow

@LuisRamos-rw5yu 2 жыл бұрын

Right haters