Craig, as an HVAC-R instructor, I just wanted to give huge Kudos for everything you do. You have the heart of a teacher and you are an outstanding technician. Thank you.

@raidone7413

3 жыл бұрын

As a vegas hvac 1st year student that also plays bass, hopefully our paths soon cross

@trvman1

2 жыл бұрын

and so many "techs" especially with the companies that advertise locally will tell you it will cost $1,200.00 to fix. All I can say is when you have HVAC problems and some company is trying to charge you $$$$ for a fix, get a 2nd opinion. I bought a new system, made calls and found a licensed HVAC guy who did it for $1,300 less then the big companies wanted to install the indoor and outdoor unit. I helped him when it came to hanging the indoor unit and he did all the rest. They have to charge $$$ to pay for all those commercials they run which are never ending where I live.

@kevinkrug466

2 жыл бұрын

@trvman1 you can't knock em for trying to make money but I agree with the second opinion... our skills are very valuable and we deserve to make a good living

This is a great example for why root-cause analysis is so important.

@randallgreen6746

2 жыл бұрын

Simple..the government stuck their noses in the HVAC business and it was determined that the capacitor manufacturer's could no longer fill them with oils for cooling the capacitors. The result is the capacitors cannot take the heat, resulting in failure due to overheating.

@randy1ization

2 жыл бұрын

that is what makes a great tech, fix the problem, not the symptom

@wfemp_4730

2 жыл бұрын

@@randallgreen6746 Removing toxic PCB-based oil? Oh, the horror!

I have no idea why this was in my recommended videos. But I enjoyed watching it and learn something new.

@LarryTheRoleplayerTM

3 жыл бұрын

It's in your recommended because youtube algo is fucked right now.. just click "don't show this in my recommended" and this idiot will go away.

@billmcginley

2 жыл бұрын

Larry and Leroy are probably right. However, getting "out of your lane" is a healthy exercise for the brain.

What I love about this instructor is not only the information given, but how tight he keeps his lesson. Then to put it together with video editing, two camera shoots, and excellent sound, just a job well done sir. Thank you.

Excellent video. Hvac tech 20+ yrs and have never got to see start cap fail. Ty

Holy Crap!!! Due to the 4-day, 90+ degree weather in NJ, my A/C stopped working yesterday....we called for repair and the technician showed up around 9 PM last night. Guess what he found? THE CAPACITOR BLEW! I'm gratified to get a repair so quickly...incidentally, the total cost for parts and emergency labor call was about $330.00. However, I'm a little creeped out that this happened yesterday and KZread pushes this video to me today....big brother is watching.

I am almost sure that's what just happened to my unit...the thing that blew is on the inside of the unit near the ground below the blades...yours is conveniently on the side easy to repair...Thank you for you video

I've seen the after effect but never seen it in action. Love the slow camera reaction on this. Great job. Sub for life

@kevinmccool3719

2 жыл бұрын

I would not want to be next to it when it blew while taking voltage readings. Man, talking about getting the crap scared out of yourself. Damn!

Why research & development is so so critical for an excellent product - Awesome analysis

Most usefull video on the internet! Our A/C guy was just changing the capacitor... When it failed a second time, he said it was time to change the unit! Turns out the emf relay was busted! Thanks!

Our "Old Faithful" start capacitor! Thanks for the great demonstration.

@acservicetechchannel

3 жыл бұрын

Glad it was helpful!

Very,very professional. SINCERELY.

That was an awesome video. Really liked the way you staged the failure of the Start Capacitor. Great slo mo shots as well. Thanks !

I love videos about planned component failures and their effects. Please do more!

great video ..... i just pass my school and got my Universal EPA .... but i am still learning from you ... thanks for great video...

@acservicetechchannel

11 ай бұрын

Congratulations on passing your school and obtaining your Universal EPA certification! That's a significant achievement, and I'm thrilled to hear that my videos continue to be a valuable learning resource for you!!

Between this guy and hvac school these are the two best hvac channels out here on youtube

Craig you’re the excellent instructor of my life I showed, much appreciated for sharing your knowledge with us.

This is the best explanation with an example with a failed relay. Thank you!

My fan start cap went bad, but I think it just dried out after 10 years, it didn't leak/rupture. I cleaned the start circuit's enclosed relay contacts and removed the dead wasps that were jammed between the exposed motor contactor contacts. Back in business, and now I do a periodic check for wasp nests. I'm glad I didn't spend $500 to get this fixed. The capacitor was around $8, shipped to my house.

One of the best videos I've seen on AC in a very long time

Thank you so much for the time and effort putting in toward this demonstration.

The unit at my old house was so close to the den window that when a capacitor failed years ago I hit the floor because it sounded like a shotgun blast when it blew. A week later the replacement capacitor blew as well. I now have A/C PTSD.

@johnnybagadonuts

2 жыл бұрын

Lmfaooooo

@tmst2199

2 жыл бұрын

Boom! :-) Totally. I think you'd have to be either wealthy or numb to not have the jitters.

@rider2731

2 жыл бұрын

Get yourself a capacitor shrink.

Good job on the presentation! I just had one blow today with an enormous blast. I'll examine the relay tomorrow!

Yes craig we can't get enough the more u know the more it helps the newbies thanks again 👍👍

@acservicetechchannel

3 жыл бұрын

Glad the videos helped Esmar!

That information is worth a million bucks!! Excellent presentation. Thanks for sharing.

@finddeniro

2 жыл бұрын

Poorly made Electrical Relays ..Too. .

Wow. I just learned something about ac that’s probably only learned at school. Thanks for sharing.

Fantastic demonstration Love it when you expand away from the basics

@acservicetechchannel

3 жыл бұрын

Thanks Jeff!

Love your videos! Very clear and easy to follow presentation. You have a gift of beating a great teacher!

Great knowledge..... I had this problem with one of the units and I nearly gave up until this video shows up..... Thanks a lot guys.....

Greatly appreciated all the efforts you do for the community and money saving for homeowners and even A/C technician, thanks graig muchas gracias amigo

I’ve watched several vids on how this process works. This resonates better than all of them. Thank you.

@acservicetechchannel

10 ай бұрын

Glad it was helpful!

All of your training videos are Excellent! I really loved this one 💯💯💯💯💯

@acservicetechchannel

3 жыл бұрын

Thanks a lot Brandon!

Awesome video. I love learning new stuff. Caps have always kind of mystified me but you helped me a ton here.

Excellent video, I just had the A.C. capacitor replaced, the unit is only a year old, the tech. replaced the capacitor, but now I will check the relay as shown on this video. Thanks for sharing 👍

Your are my hero. So smart and easy to understand. Love your videos especially the ones explaining subcooling and superheat measuring. They have saved me a ton of money. Thank you and keep up the great videos.

@acservicetechchannel

2 жыл бұрын

I appreciate that!

You have a natural teaching capability. I enjoy learning anything and this lesson was a easy to understand and capture the information given. No gasps missing. Great job.

@acservicetechchannel

2 жыл бұрын

Thank you so much!

Very well explained and demonstrated. Thank you for this. As a homeowner, you want as much information on the equipment in the house as possible.

@acservicetechchannel

3 жыл бұрын

Glad it was helpful!

I'm an electrical engineer. That was very good description of this failure. It's hard to get that stuff across sometimes to the trades people but, you did it. Thanks!

@brettsmith6367

2 жыл бұрын

As a Trades person it hard to get stuff across to engineer's...CHEERS

Great video, very informative! The day was not a waste, I learned something new. Thank you for sharing your knowledge.

@acservicetechchannel

3 жыл бұрын

Glad you enjoyed it!

absolutamente good demostracion !! Thank You good Techs

I can smell this video. Excellent instruction, actually helped me with a different electronic.

I’m not an AC guy but I learned something from you today. I thought the start capacitors burned out because they were low quality made in China. Thanks.

@acservicetechchannel

3 жыл бұрын

Thanks for sharing

@yrot1123

2 жыл бұрын

they mfg based on the American specs.. most of the AC units are mfg'ed in Mexico, not in China..

great video bc us techs rarely get to actually see when a Start cap blowS & lets the smoke OUT !!! .LOL ...what a mess , Thanks for all you Do for this industry & us Techs out in the Field

Great video Craig, I also found your book and other resources very informative! It was nice talking with you at the HVAC symposium a few weeks back 🍻 from Florida!

@acservicetechchannel

3 жыл бұрын

Jeremy, Thank you very much and great to talk with you! It was amazing being there!

@MrJlburchet1

3 жыл бұрын

@@acservicetechchannel it sure was! I hope you and your family are well, and take care!

This guy is amazing! Awesome instructor. Guys new should watch this guy. You will learn the right way to do things! Keep up the good work.

@acservicetechchannel

3 жыл бұрын

I appreciate that!

I use your book and videos for classroom trading. This is one of the best yet. Thanks.

@acservicetechchannel

3 жыл бұрын

Thanks a lot Jerry and if you need anything, email me at questions@acservicetech.com thanks for the note!

@iceesrule75

2 жыл бұрын

What book do you use?

Thanks. Excellent video and explanation on causality of the problem.

@acservicetechchannel

2 жыл бұрын

Glad you liked it!

Well explained. I was a hvac serviceman for 38 years. I changed a few of them!

@TexasBuyer2001

Жыл бұрын

How long do those kits usually last?

Had same problem with my flux capacitor but Doc Brown was able to fix it

@tmst2199

2 жыл бұрын

Back to the Future?

This was a phenomenal video.

I saw myself accidentally involved in this stuff, I saw a homeless dude once struggling to carry a off-brand chinese portable AC unit, I offered help and he offered me to keep it for 6 $, so I accepted as I needed a porch fan (which are 30$ at least), upon quick inspection the cold/heat mode did nothing and the main fan slowed down at fixed intervals (the compressor didn't its characteristic hum, so I said, well, it's toast) , we have been using it in fan mode for a while and it does its job, yesterday I was bored and decided to peek inside, I noticed the compressor hummed very faintly for 2 seconds, and gave up for another 15 seconds and repeating this power cycle, upon board inspection, no relays seemed to be failing, motors were OK, and symptoms point to this stupid capacitor which is also the reason for good units to be declared EOL and replaced entirely? Even experienced technicians will resort to installing a whole new set... Which still doesn't make a lot of sense to me (money wise maybe for the technician and sellers) *UPDATE* I'm done with the installation and it works like new, not thinking about installing it as my house already has AC, but it will be handy to have it around

thanks a bunch on the advice very helpful and something to remember as well when trouble shooting thanks

The “MFD” rating is the size of its capacity rated in units called “micro farads.” Your explanation was helpful. My previous supervisor did not feel it was necessary to clean the condenser if you could still see daylight through the coil. I am sure that this resulted in higher head pressures. So when cycling it would be harder for the compressor to start because the unit would still be hotter than normal. He was constantly having to put in the hard start kit’s. It was very helpful to see how extreme the results are of the start capacitor when it fails. One of your readers wrote about getting hit in the face by the discharged oil and gases. I can see the need to wear safety glasses more clearly now. Thanks

@claude77573

2 жыл бұрын

I also believe that the oil in old AC units deteriorate, resulting in less lubrication and harder starts. I put in an ounce of the oil recommended for the compressor, and they run much smoother and have easier starts.

@KENFEDOR22

Жыл бұрын

Nikola Tesla's name was bestowed to a car company - all Michael Faraday got a was a capacitance unit. We owe him a bit more than that!

Amazing, I learned more today about HVAC Capacitor in 5 minutes than my entire life...

I was glad to see your video in my recommendation. Your explanations were great. I wished I had seen this few weeks ago to help me trouble shoots my ac problem.

@acservicetechchannel

2 жыл бұрын

Glad you enjoyed it!

That was a great video. The only thing i would add is the resistor is there to prevent carbon build up on the contacts from arcing when it makes and breaks.

Excellent video, so well and clearly explained and demonstrated.

@acservicetechchannel

10 ай бұрын

Glad it was helpful!

Wonderful information. Clear and concise. Thank you.

@acservicetechchannel

2 жыл бұрын

Glad it was helpful!

This was very helpful. As in right now I’m going to trade school to become a hvac technician. And one of the things my professor said was. When you check a component that failed not just replaced the part that failed but also try to find out why it failed. In this video you showed what made the capacitor failed not just the capacitor is bad because the MFD are lower. Great video

@jollyscaria1922

10 ай бұрын

Elctro plat oil oit comeing over over oiy systom bacal th.......$

I really like how you kept touching the CAP terminals that would FRY YOU if you didn't bleed it down ..

👏🏿👏🏿👏🏿beautiful demonstration

Great vid man. Dig the informative style.

I really like this illustration. Also, keep in mind to use multimeter to test the Start Relay before it burns. Proper position of relay is crucial because terminals stay in right position if not affected by gravity. 1- Terminal 1 & 2 should have continuity and NO resistance reading. Any resistance reading means the Terminals 1&2 are making poor contact. This justifies a preventive replacement. But, if necessary, it is better to get more evidence. 2- Resistance reading on High Resistance Coil, between 2 & 5, should be very close to 5K Ohms, anything higher means the coils is failing. It should be replaced. 3- Any brown round/oval stain close to terminal 5 is a visual sign of coil overheating and should be replaced.

@LBizKid04

Жыл бұрын

On your point #2, is that reading when the relay is disconnected from everything?

@zachosborne6577

Жыл бұрын

Always disconnect wires when checking a load for ohms.

Outstanding training presentation and demonstration.

@acservicetechchannel

3 жыл бұрын

Thank you very much!

That capacitor didn't fail, it lived a great life!

@acservicetechchannel

3 жыл бұрын

Ha ha, yup good little guy!

@throttlebottle5906

3 жыл бұрын

after divorcing it's multi-prong needy relay wife :))

@REXXSEVEN_II

3 жыл бұрын

Capacitive juices...lmao

@royalway12

2 жыл бұрын

Glad you found the "capacity" to post on the matter.

@sknight0391

2 жыл бұрын

@@throttlebottle5906 #BeenThereDoneThat

Outstanding demo and information.

@acservicetechchannel

2 жыл бұрын

Thank you kindly!

Wow - sure am glad I clicked on this video! Not sure relay is a DIY project for me though. I was just going to swap the capacitor out.

I learned a lot from this video. Thanks

Great information and superb presentation. Thank you.

@acservicetechchannel

3 жыл бұрын

Glad it was helpful!

Thanks. Finally I understand the small circle on the top of the start capacitor.

@acservicetechchannel

3 жыл бұрын

Glad it helped

Excellent Information, thanks!

@acservicetechchannel

2 жыл бұрын

Glad it was helpful!

Exelente explicacion amigo.

Wow. I now finally understand this system. Thanks. Good teacher.

@acservicetechchannel

2 жыл бұрын

Glad it was helpful!

Excellent video and clear explanation! Thank you very much

@acservicetechchannel

3 жыл бұрын

Glad it was helpful!

Great video. Thanks for posting.

@acservicetechchannel

2 жыл бұрын

Thanks for watching!

Best video ever to watch things blow ....lol, My well pump had a blown Capacitor , took your advice to also replace relay wile doing repair . Thanks for vid

@acservicetechchannel

6 ай бұрын

Glad it helped!

Excellent video!

I liked how you described "amperage crossing" from Run cap to Potential relay! This morning I taught two courses on our Kickstart product line (which comes w a bleed resistor, btw). Bc of the amperage crossing, I stress the need to test the existing Run Cap while the system is RUNNING. I'd be happy to discuss more of these topics, HSK's just happens to be the most exciting...lol.

@officerkrupke4966

Жыл бұрын

Would the compressor be able to start with a good hard start kit installed on a unit with a failed run capacitor, and what would be the effect on the compressor?

On my trane ac, I try to always keep a spare capacitor and contactor on hand just in case of failure. Plus my ac man can't always show up that same day (understandable), cause it gets hot here quick in summer in MS.

@joeydavis3001

Жыл бұрын

Why not do it yourself? Just asking not being mean

Once the start cap goes, you should also monitor for high start and run current draw when the new cap is installed. Some shorted windings could lower the start winding resistance to the point that higher starting currents will continue to eat capacitors and will eventually take out the system circuit breakers, too. Plus, burned windings change the inductive reactance of the coil which will make this machine run inefficiently and hot (motor winding resistances are so low (1-10 ohms) that a multimeter cannot supply enough current to give accurate resistance readings, so run-start current is a safer test).

Great video. I believe that the reason why the relay fails over time is the same reason 12v relays fail on vehicles. corrosion at the connectors (in the wiring circuit) causes the voltage to drop. Since Power = volts x amps, when the voltage goes down; the amps go up across the contacts and burns them up. Same thing happens on relays, solenoids and starters on cars. Poor quality relays today may also contribute to the failure. In other words the Electrical Engineers don't design for the extra amps due to the extra corrosion resistance.

Great demonstration Another awesome video, thank you.

@acservicetechchannel

3 жыл бұрын

Glad you enjoyed it

You're truly a great teacher and very knowledgeable thanks

@acservicetechchannel

2 жыл бұрын

I appreciate that!

This is so awesome to see! I had the same fluid explode everywhere. Smells terrible by the way.

@acservicetechchannel

Жыл бұрын

I'm sorry to hear that you had a similar experience!! It can definitely be a messy and unpleasant situation when you're dealing with the internal liquid!

Thank very nice information

Fantastic explanation

@acservicetechchannel

2 жыл бұрын

Glad you liked it

Good demo

Thank You for the valuable information!!!!

@acservicetechchannel

2 жыл бұрын

Glad it was helpful!

Excellent video, very helpful, Thank you.

@acservicetechchannel

2 жыл бұрын

Glad it was helpful!

Nice format of the video. It was very interesting.👍🏼👍🏼👍🏼👍🏼👍🏼 I've learned something new. Because it's not a really common issue, it was not clear in my mind.

@acservicetechchannel

3 жыл бұрын

Got ya, thanks for letting me know and thanks for your support!

Well done!!!

Thanks

Thanks for the knowledge.

@acservicetechchannel

3 жыл бұрын

So nice of you

Thank you!

i hardly see these in AC anymore , most of our gear is inverter now and if its not its usually PSC which is pretty easy to do with a scroll compressor like copeland ZR series as they start virtually unloaded

thanks so much for sharing your knowledge

@acservicetechchannel

3 жыл бұрын

Glad it was helpful!

Thanks Craig very good education Thanks again

@acservicetechchannel

3 жыл бұрын

Glad you enjoyed it

Craig is a great instructor teacher And technician

Good stuff Craig

Thank you