CARRIER NO COOLING CALL
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- This was a Carrier no cooling call on a small package unit, we found that the unit was low on charge, it had a leak, and the compressor was going bad. We got the system back up and running and all is well now.
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I wish my boss talked to me the way you talk to him. Too many pricks out in this field. Great video!
Yep. Unfortunately, I'm working for one of those pricks...for now.
I Agree!!!
its all about picking the right company. some people have to run a company, and some want that company.
Yeah I noticed that right away with the helper struggling with removing the filter, some guys would give him shit, " what your school didn't teach you about filters", this guy is a great senior tech, I wish I had a mentor like him.
Does this career pay well?
as an apprentice myself its very nice to see you take the time and explain and mentor that guy. Hes clearly learning but you show great patience. He will make a damn good tech if he has someone like that teaching him. Good on you.
I have a journeyman that sometimes teaches me but I am in charge of my own building as an apprentice. It a little unfair not gonna lie. Wish I had a mentor that would teach me everyday
This didn't happen in the early years. Mostly 2 years experience was needed before a hire. Familiy companies were not training outsiders.
@@alforliniteaching5670 I dont blame em though, I work for a small mom&pop right now and we have guys that will stay a couple years, learn everything they have to offer (which is a lot, we do commercial, refrig, ice machines, boilers) then quit and most likely go somewhere else. We pay good too but it aint easy work, you could probably find a cushier job after learning everything with us then moving on.
You reminded me of my supervisor when I was a rookie getting my feet wet as a technician. You were articulate and soft spoken to your apprentice. I've always believed that a great teacher produces a great technician. Keep up the great work.
Dude your a damn unicorn in the sense that you forwent all cockiness and put a perfect balance between getting the job done efficiently while providing efficient training. For about just short of a year now Ive been making the transition from residential HVAC/R to commercial/light industrial and your videos have been of great help in getting a better grasp on how these systems work internally as well as focusing on the problem vs symptoms of the problem. Thanks for the insight and great videos, the guys under your wing should consider themselves VERY lucky.
I appreciate your service techniques. Asking yourself the "why?" question is the only way to operate a service company. There is always a cause for why something failed. Teaching new Technicians to work their minds gives them the understanding while teaching them to find the root cause of the problem. If they are just repairing or replacing the obvious, it will result in call backs frustrating the customer and affecting your bottom-line. This is how you differentiate the good technician from the bad and how to develop apprentices. Your direction and patience teaching a new up comer has gained you respect with me. I'm working on starting my own business this year and get excited / motivated while watching these videos. Thank you.
My old teacher would like you dude. Talk to the guy calmly and clearly without going off on him for tiny things. How I learned myself.
I’m a freshman in a trade school, and I’m loving it going for the HVAC field, and I’m getting much better at looking at these units and understanding what’s going on. Loving these videos
You're awesome teacher. Letting your apprentice do work without putting him under tension is awesome.
We can't learn from our mistakes, if we aren't given the opportunity to make them. We are looking at a proper teacher and example of how such skilled trades should be learned!
I think you are a very nice man who is trying to help out other techs in this sector. Thank you for doing this. It helps me a lot.
Another tip. Before lighting the torch take the torch and simulate how your going to move your torch around the braze joint. If there's a tricky point you can decide if there's an easier way to solder it
That's a great idea. The whole difficulty are the weird angles you have to move into without burning anything else. A rehearsal. Also going to hook several rods before starting.
Make the flame blueish yellow and and keep he torch maximum away. Heat the portion even and apply solder.
+Roy -- Great tip! It's like my HS football coaches beat into us -- You Play Like You Practice!
always do this while welding too, helps you get the angles right and get comfortable
Always wear your ppe
25 yr HVAC tech myself and its refreshing to watch your style that mirrors exactly my own. You're the real deal!
Thanks so much! I will be going live on TH-cam this evening 11/4/19 @ 5:PM (pacific time) to discuss my most recent uploads answer questions from emails, the chat, and TH-cam comments. Come over and check it out if you can. th-cam.com/video/edrzjZTZX18/w-d-xo.html
I have been an HVAC tech for almost 25 years, and I totally agree with every aspect of what you did on that unit in both the troubleshooting and the repairs. I Wouldn't have done anything different I like the double wire ties idea very clever great job awesome video
Highly quality work, high quality teaching, high quality tools, high quality video!!
Thanks bud
Speaking as a career and technical education teacher, one thing that you may find helpful when training anyone new with soldering and brazing is to have them try out on a few practice fittings in several positions before soldering the real thing. A small bag of copper fittings and a short piece of pipe generally helps people who are new to soldering and brazing to pick it up faster. You could even have them sweat on a Schrader valve and pressurize the workpiece to look for leaks. This is one of those things I have my students go through when we cover plumbing. I know that this may cut down on work time but this is a good practice if you have some downtime and usually doesn't take to long to get the hang of. It's great to see you taking the time to train someone new on good practices and tips and tricks while still letting them make a mistake.
When I help train new guys I give them obstacles in my shop to work around. I make sure they get comfortable with vertical and horizontal welds. The Vertical up welds get them every time, they always ask how come they have to weld behind things or use a mirror to weld, my answer may be obvious to some but I tell them, 99% of your welding will not be in a shop, and it’s easier to mess up here and practice than melt a hole through the copper that is even harder to fix.
I am enjoying watching your problem solving methodology. It is refreshing that you are so thorough in your repair and commentary. ❄
I like how you explain and as you say letting your apprentice learn by making mistakes. You are doing a good job keep it up.
This is the second time I watch this video. Learning a lot. Thank you for your videos.
I love finding leaks. I saw the liquid and discharge line was touching together so before y’all sprayed on there I called it. Love it.
You have to love Carrier package units. They have made me a lot of money over the years. I don't sell them but I do work on them. Lol
if major marketing problem call me.
I'm an HVAC Student myself GB and I'm understanding why Carrier units are unpopular with HVAC techs. Thanks for the video.
Oh! I love these Carrier units! I have to clean condenser coil at least once per year, if it is located close to big street with traffic it might be twice per year. Blower motor belt needs replacement every ~ 2 years. The leak caused by the compression vibration like it is shown in this video is very common, problems with metering device are very common, etc. Thank you Carrier we love you!
P.S. Recently Carrier has changed its technical support over the phone. Now they ask for $75 fee for tech support. Something tells me that this manufacturer will start loosing its new units sales soon if they dot do it already.
I am not an HVAC tec, in fact i'm a karaoke DJ.. worlds apart, but I do enjoy your videos because of your logical way of trouble shooting problems, and well put together content.. nice videos .. keep up the good stuff... all the best..
I liked the way you explained,great job,I also liked the idea of let him make mistakes.
Randomly got recommended this and I don't even really know what's going on but it was actually a pretty enjoyable and interesting video, hella props for that!
Hello sir. Wow. Your videos are fantastic. I appreciate you taking your valuable time to teach us techs good practices. I jus retired from Sheriffs Dept, got my license last year. Thank you thank you thank you for your time. Your the best.
Right on Todd glad you enjoy the videos!!
Hope that young guy appreciates the training he’s getting, a lot of companies will not go the expense ( at least that was my experience when I started )
Great video , I'm in school now for AC and this is a great addition , I applaud your patience with your worker that shows your confidence and professionalism
Yeah I would really enjoy learning from you. I would learn a lot just spending a day or even better a week running service calls with you. I work only on residential heating and cooling systems. I like your philosophy of finding out "why" something failed, instead of just replacing parts or fixing broken parts. Great video.
I like a video a lot... marami ako natutunan sa video na ito,,sana mag labas kapa ng ganitong klase ng video ....salamat a lot....
A tip on detecting leaks. Soap solution or commercial leak detectors only go so far. Sometimes just spraying the leak solution after it is applied with water will reveal even the most minute leak. Small leaks sometimes do not force the bubbles in a thick solution but a little dilution with water will create a mountain of small bubbles.
Wow great reference site, and excellent instruction. Really well put together, and a fair bit of detail.
Good job brother!! That’s the way to teach someone!! With patience and guidance.
Been a tech for over 40 years. You did a great job teaching. One thing I would suggest though just as a good practice. On the discharge at the compressor where you thought it might have been a hole. Go ahead and fill it none the less. The reason being is that there would be less solder in that spot in case of vibration again it'e a possible leak point down the road. When in doubt fill it. It's just a good habit to get into and you have everything right there to do it and takes so little time for that but it's worth it in the long run. Great Job
very informative video! and the patience you showed to your helper was awesome! you are great teacher Chris! I really enjoy your videos!
That zip tie trick is genius I will start employing this
I always put a drop of solder at joint and acts as a thermostat. When starts flowing add stick and regulate heat.
I've made those exact mistakes when I was learning to braze, your level of patience reminds me of my instructors who were fully understanding that a lot of the class have never done anything HVAC related before.
great video - 32 minutes. i enjoy the longer ones.
thanks I was worried nobody would watch it....... I feel I can put more valuable info in the longer ones
Nice one, I have actually managed to follow the entire filming without skipping any part.
The soldering was hard to watch; but I remember myself being in that position many many years ago. Gotta start somewhere =)
I remember when I first started and I managed to blow through a 3/8 filter dryer...Face Palm...Never happened again...
Some people have a talent, some need a lot of training and tries. And yes it is painful to watch usually and cringy, hard not to laugh or not to get frustrated. But most eventually gets its and are good.
I nearly lost my patience at one point
@@ogaremmanuel4032 you'd make a terrible teacher then
Wet rag by refrigeration Technologies
Very thorough....no-nonsense narrative....lucky "apprentice" (& he's not fired :)
Excellent teacher and boss. Great work! I learned a few things. I like your zip tie trick
@HVACR VIDEOS I used the zip tie trick today after fixing a low voltage wire. Worked like a charm! 💪
I have had this problem 3 times I'm my life as a HVAC technician in Honduras it occurs because friction and heat and Cold the pipe. Thanks for your help it give us a chance to look real call to attend. Blessings from Honduras
Good instructional video with lots of pointers ⭐⭐⭐. You could have drilled the bottom of that manifold on the evap coil and brazed a 1/4 refer stem into it to get the oil out if you wanted to avoid the flush. Also, 6 months and no new imported R22. 😂😂😂 Time to start switching. If the new compressor is POE, we use R407c, I haven't had one problem with it yet, almost exactly same operationally characteristic as R22.
That's right, six months and next Montreal Protocol benchmark. No more import or mfg. Time flies.
F the nanny state. Don't delay, Hank Hill your AC today!
As an IT guy was use to solder on circuit boards and other things. When I learned how to sweat pipes for a home repair, a good tip I got from another youtube channel was to remember heat rises. So when you want the solder to suck in, heat from the bottom up. Its a little harder when your upside down, and at weird angles, but you could tell he was a little uncomfortable handling the torch. Not terrible, and overheating is definitely going to happen when you're learning. You're a great teacher and very patient, I subscribed cause I like your content and love your big picture approach.
You are some smart you need a raise
You had basic protection for the drier, so I wouldn't worry about it breaking down. One thing about brazing. I found out many years ago, I brazed much better holding the torch in my left hand and brazing stick in my right (I'm right handed). You might have your trainee try that.
I was glad to see you try and get the old oil out as much as possible. It's most important if there were severe compressor overheating as that breaks the oil down and you don't want that in there.
I think you did as good a job as the customer would allow and that compressor should last a long time.
Strange how I've been at this (Residential and commercial) for over 46 years and I still love it! In fact, at 65 years old, I'm still running my business and doing calls and advising techs at other companies.
Seems like a good thing to do would be to take the dead compressor and some dead driers and the like back to the shop and just practice soldering on them for a while. Not as good as field work where you have to stand on your head and drip hot solder in your face, but it can give you some cheap practice on some of the awkward joints. Better than just soldering two straight tubes in the vise.
I'd like to see the guts of one of those modern compressors too, I still can't get my head around how they make such effective little things not vibrate like crazy in normal operation.
@@44R0Ndin it's all about balancing the loads. I don't have specific information about AC compressors, but if you pull a pug wire off a 6 or 8 cyl engine it'll start shaking like mad. Similar idea to balancing tires, though now your working more in 3 dimensions rather then two. If all the forces are balanced well there should be little to no shaking.
@@animefreak5757 I know the load must be balanced somehow, I just wonder what specific method they used.
Did they use two scroll compressor elements and then mount them to the drive shaft 180 degrees out of phase? Did they use a simple counterweight? That kind of thing.
I just want to see one without the hermetic casing on it, and then see it taken down even further if possible. I know sort-of how a scroll compressor works, but I wonder if there's other types besides scroll and reciprocating.
Screw compressor maybe (built kinda like a Detroid Diesel engine's supercharger)? Those are inherently balanced as all the rotating parts are radially symmetrical.
@@44R0Ndin th-cam.com/video/yNgqI4XPUZc/w-d-xo.html is a good animation of the internals, at a glace i'd guess they must use some sort of counterweight
@@44R0Ndin Most scroll compressors have counterweights built into the main motor/rotor. You can find teardowns readily here on TH-cam.
Because the scroll elements move in a predictable eccentric pattern, it's simple to counter it with added mass to the driveshaft and motor - which has to be relatively wide anyways to develop operating torque.
Rotary units, usually only seen on small inexpensive units, also use the counter-weighted motor method.
Reciprocating models are balanced the same way as a car engine is, with crank counterweights to oppose the motion of the pistons. This is imperfect, as anyone who's been in a car can attest, thus why these units still vibrate some.
Great zip tie tip. The Roadkill guys would be proud.
The zip tie inside a zip tie to prevent a rub leak is a good idea. I've been a tech for 23+ years and I have never thought of that. You're never to old or experienced to learn from someone else. Thanks for making these videos, I really appreciate it and I Know it's helping a lot of new techs by having the opportunity to see these things done properly. Thanks again for sharing your skill and time with us.
thanks for watching!
Silicone works too 😉
Next Idea: If you cut the end of the zip tie flush with the "zip tie holding thingy" with a proper tool like e.g. "Knipex 78 31 125", then there won't be any sharp edges which cut into your arms if you reach next to this zip tied cable. Normal cutting pliers leave nasty sharp edges on the cut side of the zip tie.
Same! Never thought of the either. I have zipped a piece of armaflex between two pipes...doesn't always hold
Your videos make my day better. Thank you.
Your helper is very lucky to have someone like you teaching him.
God damn, you’re an amazing teacher. I did a bit of HVAC and having someone with experience and patience is the best thing any one can ask for.
Great job brother! No complaints here! Very comprehensive and informative video. Just subbed...
Thanks bud
@@HVACRVIDEOS 💪👍💪
Great content. I have been away from the trade for a while. Everything is starting to make sense. You do a very thorough job. Wish, I had this video support/content when I was in the field.
The problem with using those plastic zip ties on a discharge line where you have high temperature is they will soften , stretch and come loose and the pipe may rub again easier just to separate them so they can`t touch
They do make stainless steel zip ties, seen my city use them to hold street signs on traffic signal poles.
The zip tie idea was pretty slick.....in that situation ive also used scrap pieces of armaflex from line set
General-purpose nylon zip ties have a working temperature of 185 at the high end.
I've done this exact same repair and that's what I did was reroute the lines and deem it an engineering flaw. It seemed the leak started small enough that it lost too much oil before it shutdown and took out the compressor. Some compressors are more sensitive than others to oil loss.
Great working as a team
Don't know why this is in my recommended but this looks kind of interesting.
That blower bracket is actually the modified bracket from the original. So you are absolutely right about the bracket being garbage.
that compressor sound like a goodman unit LOUD!!!
You are a great teacher. Will be starting HVACR school this September-I am 44. Wish the teachers are as nice as you! Thank you for this wonderful video! Subbed.
when you have a dirty filter just use the other side
on a serious note i think compressors should be more user serviceable... i hate replacing them
@@djenson I think it was a joke. Like a winter and summer air in Tyre joke
Completely agree with you on the compressor remark! On the Roof Top/Package Units from my experience there not that bad In my opinion the only bad part about them is lugging them up the roof and back down. BUT Split systems are a total nightmare! You have almost no room to grab them and get the out.
@@jonnywilson9117 lol whoops. don't even remember typing the comment
@@djenson hahaha you were probably drunk and having a good old time :D
You have got yourself a student in me.. thanks for all the lessons!
Ziptie to ziptie idea is great. Combined with some cork tape would work nicely for copper to copper and give some assurance of no rubouts.
Good job and letting the apprentice grow legs. I know that feeling when you Just wanna do it yourself and let him see how easy it is for you the pro...but sometimes one learns best with hands on, mistake and all.
Great diagnosis and repair too.
Letting the apprentice do it will instill confidence to let him go out on a job himself in the future. You'll know his skills and techniques because you coached him. Its like flying lessons.
That zip tie trick is a life save if you own an RV with a rooftop air conditioner because those things are very mobile and vibrate from being moved around as well as normal operation. The lines inside are already compacted up and such where rubbing happens and things start leaking.
You did fine You're good teacher you're very patient And you can tell your apprentice was nervous Uh And your take the extra mile Which most people don't You're a good tech
Really good qualified teacher, let the guy do some mistakes so he knows what to do next time. We learn from our mistakes 👍👍👍👍
Nice fix: Your helper needs to be very careful of not letting the torch hit the aluminum coil when soldering the copper. Aluminum is so easy to melt. He is doing good and will be a good HVAC mechanic. Thanks for the video.
Christ don’t be so afraid of those TH-cam “police”. Maybe most them don’t even braze better than your apprentice. We are here to enjoy your video not to criticize you.
Jay Xiao I watched a self proclaimed “expert “ on brazing slobber half a stick of silfloss on one joint. He never moved the torch flame and had silfloss slobbered on over three inches of pipe. I took the torch away from him and showed him how to properly apply the heat working the silfloss into the joint by fanning the joint with heat all the way around. Silver based brazing rod does not respond to a joint like 50/50 plumbing solder. You have to work it in to the joint with appropriately applied heat. My joint held, the “expert’s “ joint failed and had to be redone. Not an easy process!
@@dalegriggs5392 Rule that I learned way too many years ago between sweating copper pipe and soldering up electronics: solder flows towards the heat...
chemech true. Always heat the copper fittings at the back of the joint. When the heated fitting is sufficiently hot the solder will be sucked right in. Once it does that the joint is done. No need to add more solder which I’ve seen countless guys do. Just wasting solder. As for electronics I always tin the wire and the connection point. Same rule applies, when it melds together stop.
Very interesting video. I have no clue about HVACs as an electrical engineer but I feel like I learned a fair bit in this video.
"it's a Carrier thing" haha find myself saying that a lot
Yeah some of the phrases I come up with give me Joy for sure and that is one of them!
I will be going live on TH-cam this evening 11/11/19 @ 5:PM (pacific time) to discuss my most recent uploads and answer questions from emails, the Livechat, and TH-cam comments. Come on over and check it out if you can th-cam.com/video/Rm3XGBDxpOQ/w-d-xo.html
Hi guys (from Oz),
I’d take a little more care zip tying your new wiring to what looked to be the discharge line, regardless even if it was the suction, it should be in corrugated conduit for protection.
Good on you for posting this repair, you may have given some in experienced mechanics some great tips.
It’s always important to expand on the electrical side of the compressor swap as well (replacing the contactor/overload, tightening up existing connections, isolating power to make safe etc).
Look forward to your next job!
Cheers
Steve
Great job! And very comprehensive instructions, I appreciate it.
Could you please tell us: what is the material you use to cover compressor and dryer during brazing?
That putty is called wet rag
When i started as an apprentice the journeymen called me "blob". Mainly because i suck ass at brazing, but you learn with each mistake. I think that apprentice has a hell of a teacher. He is gonna be a super tech!
Great job 👍 funny to see R22 still being used there, our phase out ended Dec 2016 (UK). That stuff was liquid gold! £400 per kg here at one point! R422D was our go to drop in.
407c here
Its phased out here as well. Jan 1st cannot make or or important it, equipment can no longer be manufactured with it either. Once is runs out, it will be gone. Its getting expensive though. Lol
I just change the oil and dryer and use 404
I wish I could learn from you as your apprentice. It's hard now a days to find a good teacher or someone who has the patience.
A lot of us techs have had a hard time finding someone to teach. You can spend a few years teaching somone everything. No one owes you anything for it though and I dont make anyone sign contracts or give them bonuses they cant pay back if they leave.
I learned as a young teenager following my mentor for less than 5$ an hr. Hell I would pay for it now.
If you are serious, ask your supply houses if they know someone who may need help that could be a good fit. If you make it clear your there to learn and not waste someone's time or patience, its bound to happen.
It's a real investment that is often underestimated.
Really nice to see ya take someone under your wing to reach them the trade. That is something this field is lacking......
So true man. A lot of apprentices are journeymanout not being fully ready
i am experienced 35 years in the field.
Damned good job! You're a professional in every sense of the word. If my local guys worked like you do, I wouldn't have been compelled to get certified and do my own work! ;)
Haha, poor guy... On the spot, knows he’s gonna be on TH-cam getting banged up by old schoolers about his brazing 🤣 Oh, the joys of learning... I’m all about the rosebud tip. Quick heat! Although, you learn how NOT to burn holes by burning holes. If a joint takes longer than 60 seconds, I start getting irritated. Those 3/8” joints should be half that. That discharge port your apprentice brazed up was textbook 👍 I’ve said it before, your methods of mentorship are spot on, as far as I can tell. Great work!
Kind of made up for that dryer- a little bit.
@@DW-vl2wi The difference between that drier and the compressor discharge port are what I I'd take as evidence that he actually learned something, and that's always a good thing.
Awesome job. I am learning a lot watching your videos. I just don't trust too much on the zip ties. Yes, they do the job, but on an outside unit, they are going to break at some point due to temperature changes. However, I have not found a different way to do it though. I hate to use zip ties like that, they come pretty handy. Thank you for your videos.
I’m an advance DIY person and your explanation of how to work on AC units is impressive compared to other videos. Please keep making more videos.
Good job mentoring.
Watching the soldering had me so nervous I had to pause the video several times to get out of my seat and pace around the house. You got the patience of a saint Chris!
It's not that big of a deal LOL
It’s really not
Braze(n)
Good video, you seem like a great teacher! I don't do refrigeration for a living, only as a hobby, but I've been doing it for nearly 20 years and knew most of this and it was spot on. One little extra thing I like to do when brazing is add a little more filler at a cooler temperature on the top to add a little collar just to add a little strength for vibration. Not really needed, but it's good peace of mind. Also good since the autocascade I built vibrates more than a broken washing machine, but what can you do when you're using old junk and too poor to buy a $600 compressor haha
I'd like to see using a cheap set of flush cuts for the zip ties to save the hands of the next guy that reaches in there, since if you do a good job it'll probably be you!
I think your lad did well with first time brazing. Recommend that you give him some copper pipe and fittings and let him learn brazing inverted and also learning how to set up the regulators as well as nozzle sizes etc
Damm I would love to be your apprentice, out here in vegas it seems like the put you in a van as quickly as possible and send you to the easier calls.
The first year or so should be PM type stuff. After cleaning coils, replacing filters and running back to the van for parts, it will weed out the techs that want to learn.
If only everyone taught like you
That's a very good video thanks,
I dont recommend using rubber gloves when blazing
Dude I like your style, super thorough. Enjoy your videos.
I have found that it is hard to find people to mentor in the electrical field and I am sure it is in all of the construction trades. I applaud your willingness to show us this process. Anyone would be lucky to have you as an instructor.
Good stuff. Teaches me wonders and helped me on an exam.
I really like that double zip tie thing to prevent parts from rubbing against each other. I am going to remember that.
Isn't it engineering 101 to not butt two hardlines together if the mechanical action causes significant vibrations during operation? lol
*aye brotha...i am also in the HVAC industry... your doing a great job if nobody told ya and dont worry about what they think*
You are very knowledgeable and I like your videos and learn from them. But I must point out a "HUGE" mistake he made while brazing. NEVER ADD PURE OXYGEN TO A WELD AFTER BRAZING! If there is any remnant of a flame inside the compressor the mixture of oil and oxygen could cause an explosion. Hope you can take this as constructive criticism sir.
Great to see your approach with that apprentice! I wasn't so lucky in my early years in the trade lol
Restaurant work is a real pain in ass because of all that dust and Grease
I’ve always have used a turbo torch but I always use a small tip so that the flame won’t over heat the area in which I’m brazing. It’s nice to see how you tie your wires I’ve never seen it like that before I will use that method now it’s very interesting.
Good job,good practices, good teaching to your worker, I enjoy watching your videos Learn something good today thank you.
Hola buenas me encanta mirar este tipo de vidéo no entiendo todo pero no pasa na un saludo desde Francia 👍😁🇫🇷