HVAC Training Board: How To Troubleshoot A Contactor (Electrical Training Board/2 Pole Contactors)

[@christian81846]

I pray to become as badass as you are!! 4 years in the game. Still struggle with a lot but if I study an hour a day and continue to keep my mind sharp by learning from techs like you, this year will definitely be a great year🙏🏾

[@DS-fb9te]

❤

[@Mark-eu4di]

As an electrician of 36 yrs, I love your videos because I generally don’t get to work on HVAC systems very often so it’s very interesting! I was just on a rooftop troubleshooting a 480 volt over load relay for an AHU that hadn’t worked in 7 yrs! All it was, was a bad over load relay, $300 part, all fixed. It makes me feel good to solve problems. What did confuse me was that the relay had an auxiliary contact on it and I couldn’t figure out what it was energizing because it got lost in a bundle of cables but in the end it didn’t matter anyway. Thank you!

[@jthatguys]

I’m not an HVAC tech, but this is exactly how my exhaust fan banks are wired at my commercial greenhouses that we’ve been working on. I never realized it all worked the same. I’m going to start teaching my son, I’m going to show him these videos.

[@jhernellmusic]

Excellent teaching tool. I am an HVAC contractor and teaching my young son the business. Great teaching tool you made. Thanks, JMT!

[@ParabellumX]

Great video, bro! You can also test the amp draw, as well as each coil's resistance values as well. Regarding the Primary side, you'll notice that if you place one of your multimeter's leads on Common and the other lead on one of the three line voltage wires, you should get the same resistance, no matter what line voltage wire that you choose in relation to Common. However, if you begin testing the resistance between any two Line voltage wires themselves, you'll notice a pattern: The resistance found between the two furthest Line voltage wires is the sum of the resistance found between two pairs of two adjacent Line voltage wires. That is, the resistance between the 120V Black wire and 240V orange wire is the SUM of the resistance found between the 120V black & 208V red wire, plus the resistance between the 208V red wire and 240V orange wire. This sum check is confirmation that the Primary coil has the proper resistance in its coil. Regarding the Secondary side, there should be almost no resistance in its coil - approx 0.6 Ohms-ish. There should be continuity. Hope I could help.

[@kcsundar104]

Going to hvac trade school and struggling with it I hope I can learn on the field and get better

[@JumpermanTech]

@kcsundar104 I finished trade school and didn't even know what I was looking at first on the field. Now I run my own company and life has changed for the better. Keep at it if you like it. It's a very rewarding field and there's lot of growth opportunities. Stay tuned for new videos every week🔧⚡️

[@adagiotexas]

Best explainer video on AC wiring. This brother needs more views!

[@JumpermanTech]

Thank you! I appreciate the feedback 🙏 Let's run up those views! Like & share ✌✌✌ Stay tuned for new videos every week🔧

[@iyonlionofficial8372]

So happy i came across this channel, keep up the good work brother

[@JumpermanTech]

@iyonlionofficial8372 & I'm glad you did too! Thank you very much 🙏 Stay tuned for new videos every weekend! 🔧⚡️

[@yeliab814]

thanks for taking the time to make this video. very deep detail knowledge that's usually skipped over in anything else i've seen on you tube ... bravo man !

[@TheRemyRomano]

Makes sense. But why does the timer not need Common the same as the contactor coil?

[@gabrielguerro8449]

Takes a lot of work to do all this , thank you for your time

[@JumpermanTech]

Definitely does but I had a great time doing it. Thank you for your response and for watching. Stay tuned for new videos every week🔧⚡️

[@joejoeesqueda]

Hi, can you do a video on a single pole contactor trouble shooting. I have seen some videos where they put thier leads across up and down the contactor while powered and state that if it shows voltage, the contactor is bad.

[@paulpatenaude3208]

Awesome training board for the new hvac technician!

[@manonfire3642]

Need wiring diagram showing where each wire goes from the load side of contactor. Is timer always in series with yellow 24V? Is blue/common required if batteries are not used in thermostat? What wires go to and from transformer? Thanks!

[@odeliocepeda6054]

@ManoNfire Common is always needed to complete the 24V circuit in a thermostat with or without batteries.

[@JumpermanTech]

This is something I just created in my mind. No wiring diagram but I will try to draw one. I will create a video explaining the wiring and what I did here. If the timer is for the compressor or condensing unit then yes, it will be in series with the "Y" wire from the thermostat which is typically a yellow color by code which represents "Cooling". You will not see a C/Common wire on every thermostat so if it's not used, you will notice it's a battery operated thermostat. I will make a video explaining your questions. The 24v from the transformer is connected to R on the stat then eventually each 24 circuit makes its way back to C on the transformer to complete the circuit. Thanks for watching!

[@realSamAndrew]

@@odeliocepeda6054 not true. Common is not needed in battery or mercury thermostat. In fact most homes don't even have a common wire available to use.

[@GotchaplumberGotchahvac]

Is the Tstat going thru either common or yellow? What units use this type timer? Used in heat pumps, gas, or both? What do they call timer?

[@RC-Heli835]

I did not know that about a coil that's energized that you actually get a voltage reading. Is it normal to have a time delay for the AC condenser and compressor?

[@37dcaldart]

Would you happen to have a video explaining the training board? We have yet to have electricity at work, and it would be nice to build one for pre-knowledge and fun. Thank you.

[@rickscrofani1371]

Hi- I am having trouble with condenser turning on and off within multiple times after start up. >I replaced contactor- didnt work- got 24v at contactor then 11.4v then volts moves all over. >I replaced transformer- same thing. I just watched your video- i wonder if my timer relay could be the issue? I have timer relay + 1 other one. Unit is rheem/2003

[@nicolelarrance1417]

i seen this type set up on another video and i loved the idea of doing this i watched you video and learned a lot ty i only wish i could build my own to help learn this i am a hvac student now and wish our school would let us make these.

[@myrealtorandy]

Excellent video. Thanks for taking the time to set this up and showing it.

[@navystorm8323]

You are my hero buddy omg the best instructor I ever had Keep up the good work!

[@izzybell11]

Excellent demonstration and interesting subject. As always great job JMT. 👏

[@JumpermanTech]

Thank you very much Bogdana! ⚡⚡⚡

[@samyz1660]

Jumper man tech Would you mind please do a video about a pump down when you have a low and high pressure switch . Thx

[@toyinorodare4072]

Thank you for the Video. Do share the Circuit diagram with the video it help to do personal wiring for self practice

[@JumpermanTech]

You're welcome and thank you! This is something I just made in my head. I will try to draw a diagram but I will definitely make a video explaining the wiring. Thanks for watching & for all your support! Stay tuned for new videos every week⚡⚡⚡

[@carlovisciarelli7862]

Thank you for Great demonstration all in detail. Amazing job it is appreciated JMT.

[@DJV94022]

Kinda felt lost when you was mentioning in the video: When the thermostat calls for cooling 24v (R) converts to 0v (Y) making the timer drop from 24v to 0v to make the contactor turn on ? I honestly thought that when the thermostat kicked on cooling it transfer 24v (R) to 24v (Y) making the timer work, the timer doing its job by transfering 24v to the contactor to kick it on by giving the contactor 24v to pull the 108/230v to make the compr3ssor run

[@JAYY_JAYY]

Likewise He said voltage drop to 0

[@maxgiantbanana7344]

The best explanation on KZbin

[@manbearwall]

Wish I knew 11:18 a couple weeks ago! Would have saved me $500. I could have diagnosed bad contactor and swapped the $45 part myself!! I would have seen expected line voltage, but wrong component voltage. Right?

[@kjacw]

Man, this is the best video I've ever seen!!!

[@michaelhockus8208]

Nice video Jumper man, you're a great teacher.

[@marvonbethel6396]

Good job bro it gave me even a better understanding of the in and out flow of 120/240/24 volts operation 💪🏾💯💯

[@santiagocordova6665]

Do you have a video creating this and explaining it? I did it in school but didn’t understand it much

[@JumpermanTech]

I don't have one creating it but I will make a video on the details of it and explain the wiring. Good idea. Thanks for watching! ⚡⚡⚡

[@santiagocordova6665]

@@JumpermanTech that would be Awesome thanks man !!

[@JumpermanTech]

@@santiagocordova6665 Got you! It's a good video idea too. 🙃✌

[@tptm100]

What color wires are running through the red conduit to the light? I see the green which I assume is the ground. looks like two wires to the fan, shouldn't there be a white to the light too?

[@HsingSun]

Thank you for your video. There are no numbers labeled at the poles, are those top and bottom poles identical? If so, you can run "power in" at the top or bottom poles, right?

[@JumpermanTech]

You're very welcome! Thanks for watching & commenting. You can install it either way so yes, you're good 👌 Stay tuned for new videos every week🔧⚡️

[@billbaber6653]

Nice class could timer switch also be.called relay?

[@kayo626]

Show a video how to make this board please and can you explain what wires and cables go to where and why?

[@ChocolinaBoco]

hey a quick question regarding voltage, at around 5.04 you measured red to blue and the other wires, the meter reads 24 because R is energized and the other wires aren't so the difference in potential (voltage) is 24 at that point. and when you set it to cooling because Y is energized the meter reads 0 because now theres no potential difference between R and Y right? still trying to wrap my head around voltage readings being a difference in points. thanks for the video!

[@TheWilferch]

This might help as to fundamentals of what voltages are read where---> kzbin.info/www/bejne/fGGYnIqDibSgqK8

[@DauntlessDeonte5991]

Start capacitor’s role is? Would it be where the timer is (yellow to the Contactor)? My Contactor isn’t closing so it’s a low voltage issue. Correct? --->(Capacitor)?

[@averypurdy47]

Keep doing it even us who is in the field need reminders as well

[@dhflannagan1]

What a great teaching video. Thank You!

[@devonsalmon7554]

thanks for explaining. i like and subscribe to your videos. i am looking forward for more videos from you

[@jdbrews284]

Should I have 28 v on both wires coming from the Thermostat going to both sides of the coil. I check both wires they both have 28v independently.

[@jdbrews284]

Im not sure why I have 28v on my both wires going to the coil. It does not pull the coil in.

[@DavidPruittTV]

Great demonstration. Did you have to make a suicide cord to power the board were it connects to the receptacle?

[@Tony-oe6dr]

Hell yeah, great video. You explained it very well 👏🏾 appreciate it.

[@richardhaneberg6278]

Very nice set up and explanation of the cycle.

[@ClonBusk]

where were you when I wasted my gi bill on rsi... lol good job man keep up the free lessons!

[@joebanks174]

I would like if you trace the wiring and explain how they operate

[@dilks9730]

Is it possible to buy a training board already assembled thanks dilks

[@MrFreddy61]

What if my contact doesn't have the plunger piece that i see on multiple videos. I've replaced the capacitor and a burn wire going to the compressor and everything looks right but nothing turns on when i turn A/C on. I can hear power going to the unit but that's it. I checked the AC breaker as well.

[@MarylandMan85]

What an excellent demonstration. Well done bud

[@mutwalid4778]

Thats what we need carry on at like this traning vedios thank you

[@JumpermanTech]

Thank you! Glad you enjoyed it. Stay tuned for new vids every week! ⚡⚡⚡

[@eng.mohd1990]

I learnt a lot from you. Thank you so much

[@rickyrichy5496]

What a great explanation! Thank you bro

[@francisdsa6790]

Thanks for the efforts to showing this information appreciate you 💐

[@JumpermanTech]

You're very welcome & thank you! Appreciate your support. Stay tuned for new videos every week🔧⚡️

[@Jorge-le5hv]

Would you make a video on how to build one of these nad ass trainers with all of the parts. Many of us would love to build one.

[@i-d-m-system.5697]

Love it, thank you 🙏 very easy to understand

[@Alex-nf5go]

I wanted to thank You Jumper Man .

[@JumpermanTech]

Thank you for that & thank you for watching. Stay tuned for new videos every week🔧⚡️

[@jortega222]

Thanks again, great explanation. I just joined your channel and gave a like 👍

[@Dontexxr]

You have a talent for tesching

[@FarizaKaced]

Well if ur fan is off u couldn’t have 28vac on the y, one u set it to cool the thermostat will energize y and kick on the cooling

[@deveaiswilliams1744]

Great video… 1 suggestion… show them once the thermostat is calling that the 24 volts should be on your yellow wire and common, that way you know the thermostat is calling…

[@migueldominguez4311]

Like it a lot ! Very very clear specific the way what controls the cooling system. I went out school and be honest I get out very confused about the way my teacher tech me . I like your videos better sir . I will like more videos on comercial traulsen fridge and continental fridge why evaporator buildup ice in the evaporator and wich coul be the solution thanks jumper man!

[@nicolerennie]

love this!! thank you for sharing 🌟

[@JumpermanTech]

Thank you! ⚡⚡⚡

[@joaquinsandoval5152]

Wow,. Great video, please keep it up. Learning a lot. 👍

[@JumpermanTech]

Thank you Joaquin! Appreciate the comment & I'm glad you're learning alot. Stay tuned for new videos every week🔧

[@newlife530]

Great video, thank you so much!

[@bigDrob]

Great video, I always jump when my condenser kicks on too😅

[@jordanjohnson2685]

If you read ohms across the contactor, what is a normal reading you usually see? I have seen people say you read 0 ohms, but also seen people say you want to read between 10-20 ohms? Thank you.

[@michaelminihan6430]

Awesome video Incredible I fo and learning Thanks so much God speed

[@losshy8783]

Thank you!

[@zakhu4971]

hello from iraq with you well done

[@JumpermanTech]

Thank you very kuch Za! ⚡⚡⚡

[@noelnoel4916]

@@JumpermanTech where do you buy all of the components so I can make a lab please let me know

[@shine-cg9uf]

💪👍🇺🇸 great informative video. Thanks JMT

[@JumpermanTech]

Thank you Shine! 🇺🇲⚡

[@JRACTech5261]

this vedio is great but iam not hvac technician please i need step by step how an a/c with time delay and contactor woks

[@mmorrison6775]

your board is all most identical to the one i made years ago I wish I could still do this however health issues forced early retirement

[@markishentaibu9184]

Can you do us one on step-down transformer connection please. Thanks

[@ImranShaikh-kl7mj]

Great video, very technically informative, Thanks

[@TheWilferch]

Excellent presentation.....

[@randymorel7996]

Nice work

[@thesilentonevictor]

Jmt great training board 👏 👌

[@JumpermanTech]

Thank you Neilvester! Always appreciate your support 🙏⚡

[@GamingwithKandA]

good to know that contactor has a definite purpose!

[@jasonhewitt7614]

Excellent video

[@KamleshkumarPurohit-bf5ql]

Great video🙂

[@garydudgeon]

Nice explanation.

[@JumpermanTech]

Thank you Gary! 🙏⚡

[@danzelwesingtone7413]

Nice 👍 thank you so much ❤

[@RCIDEARCIDEA]

Perfectly understandable

[@carlosandrade9317]

So what if im not getting 24v at thermostat and terminal block

[@hafizjamil9189]

Thanks so much sir for information about this

[@jesusatempa5752]

Amazing information!!

[@Leo-rr8sk]

When u say 3 phase ur referring to the contactor lmk I really wanna make sure I understand these terms/ symbols confuse me also good video

[@Leo-rr8sk]

Nope that’s def not it I’ll keep at it

[@giftkabobo9782]

Thank you very much.

[@JumpermanTech]

You're very welcome & thanks for watching! Stay tuned for new videos every week🔧⚡️

[@davidater9]

great job

[@u2tipsy]

Excellent!

[@markishentaibu9184]

Well simplified thanks

[@jetko43]

Thank you!!!!!

[@MsOrlandotaylor]

Great job!!

[@Tigervide0eye]

Nice job!!!

[@JumpermanTech]

Thank you! Stay tuned for new videos every week🔧⚡️

[@carlosandrade9317]

I think my coil didnt energize but i pressed the contactor and i energized and stayed on now does that mean my contqctor is bad

[@ismailahmed8031]

good job

[@randykhan2906]

Very informative

[@roylerma2024]

Excellent

[@JumpermanTech]

Thank you! Stay tuned for new videos every week🔧⚡️

[@mauroaparicio1855]

I like the video