The most important thing I've learned from these videos is all AC's have a part called a Chingus. If I stock my van with lots of Chingus I should be good on most jobs.
1:55 That is a ubiquity UniFi Point to Point Network device. They are usually used for bridging networks from one building to another. Might cause a small interrupt if you stand in front of one. Should be mounted on an elevated platform so it would be a non issue. -for the one guy that might ask later.
if you're being exposed to microwave radiation strong enough to pop popcorn, you're gonna feel it long before the popcorn pops. basically, popcorn pops by way of water in the kernel turning into steam. that same process applied to the human body is quite painful and results in deep burns.
@@rakninja humans can sweat to cool down though. Popcorn can't. That's why it pops. And the old school style was in a frying pan not a microwave. So, should you ever happen to have popcorn kernels in your pocket while sitting in a frying pan with plenty of oil AND you don't notice the excruciating heat - get out when the popcorn is ready 🤪
You calling the culprit seconds before disassembling it (putting you on the line!) and it being exactly the thing, shows your immense experience. Great work!
Great job. I retired this March after 31 years in the Union. I was trying to get 35 and 62 age . Unfortunately I had a emergency brain surgery from a hematoma stroke. I worked for JCI/York. I did start up and New Product over view . ECO 1 and 2 box car and Air cooled chillers with compressor drive systems were my babies. Actually I traveled all around the world doing projects. But I am enjoying my family and grandchildren. Keep doing what your doing. Also as well you know the Industry is huge and can take you all over the world. Don’t miss out. Your knowledge and passion can get you there. Also when we said “ We’re going to do a CHINGAS for the LP switch “. I laughed and spit up my morning coffee. That was Hilarious . As a Latino I loved that. Keep it up
Your channel is really helpful for younger service techs like me, you have no idea. Did my first coil repair today, chilled water coil leak caused a flood in the entire room.. long day. Got a WIF tomorrow so I frequent these cooler/freezer vids a lot, thanks for taking the time to put these up bud.
You will find that these types of videos, by good channels like this, and there's not many I watch, are good for more than just apprentice. I've been in the trade 21 years, the reason I like to watch is first, it keeps you on point all year long, we go from focusing on heat for part of the year, then cooling the other part, we tend to get a bit rusty on certain things when we havnt done it for 5 or 6 months, and in this trade there's always going to be something you havnt come across whether it be newer systems you've never worked on or just a problem that's rare and you havnt seen. Never stop learning and you'll be a great tech man.
This is a great instructional video for someone learning the trade. i would highly recommend someone wants to go into a trade, look into restaurant refrigeration repair. Not a lot of guys want to do it and do it right. If you work for the right company with overtime you can make over $100000 y. You have to work outside a lot in bad weather. But most the time you are able work indoors. Also you never really have a slow time like if you just repair A/C and heat.
Your right , it has to be the right company but those are few and far between! Most of them will kill you and you will get burned out. 100,000 yr, you’ll burn out within 2 to 3 years.
Just started watching your videos a few weeks ago, long story short it got me missing commercial HVACR……I start my new HVACR job July 26th. Thanks for the awesome videos. I’ll be using them to elevate my skills and knowledge!
Even with his videos Chris doesn't give up. I seen your FB post about having difficulty uploading this video. Glad you were able to get it to the people. Pure dedication my dude.
That is no nitrogen used to make brazing connections. The recovery of any refrigerant needs to go thru a filter drier then recover. The polishing of the scroll surface shows a friction material was in the system. Since you did recover some oil, could be it was added from another service call previously. I figure that the contamination in the system bogged down the flow and jammed up the bypass. The compressor was overheating for a while. Scroll systems can take liquid better if it happens.
To me it looks more like a part of those disposable Scalpels similar to a #10. Just the very tip is missing and of course the rest of the Blade, but how it got there is a true mystery.
Could it be part of the round blade of a copper tube cutter? Maybe someone had the blade break when cutting tubing for the original line runs of the system who knows how many years ago, and it fell into the piping and has been floating around inside the system for years.
Props for doing an autopsy to determine what went wrong and why. It's the only way to know for certain. I have always done them and that's how you learn. Much respect for you sharing your skills and knowledge!
Chris, you went full Sherlock on this one. Awesome! Great diagnostic skills! This is how you learn. I learned a lot! Great job (both video and repair)!
Man, you are puting a lot of effort to diagnose real problem, instead of fix and leave! Appreciated all your effort to show every detail and to make videos.
" this... satellite looks... intimidating...." I was crying after hearing that! your thought process is awesome lol! i woulda thought the same thing... looks like its braced for war LOL
That's what I do when we install p2p systems temporarily until we get a stable internet connection, we don't wanna cut tubes and have our customers whining about slow internet
Have you ever had a compressor autopsy that revealed something so bad that you've had to return to the customer to do more troubleshooting and analysis?
The worst case is the compressor grenades itself and sends metal shrapnel through the entire system. No real easy way to fix that but take the entire system apart and flush the lines out so capillary tubes don't clog up in the evaporator or condenser. Scroll compressors are so simple that it's not very common compared to other types of compressors. Swashplate compressors used in automotive applications are more likely to grenade themselves due to the large number of moving parts.
I can guess the compressor was running while severely overheating, heat expanding the metal created the severe wear. Once the compressor cooled it lost the ability to compress do to the gap created by the grinding. This may be a repeating proccess: compressor runs under amped with no flow; heats up and expands to the point it regains compression ability; bypassed TXV leads to overheat; grinding again; maybe locks; fuse trips
That's what I was thinking. Specifically the gaps in the scroll. Those need very strict tolerances to compress, wouldn't take much to cause the equivalent of a failed valve on a recip
I love how beautifully the wiring was done at the circuit breakers, With it all tidied up and coiled! You don’t see high quality workmanship like that anymore.
I’ve watched so many of your videos, and after all of it I’ve started thinking if I want to go into HVACR as my career. It’s always been an interest of mine and I love watching these videos to know more about what goes on. Keep up the great work!
Bro! Go for it! If there’s a technical college near you and it all lines up, take the 1 year course ( you’ll learn the most from the first year, in my experience 2nd year was just learning residential codes/ energy management and a little bit of refrigeration (most important one) but the curriculum I went through will probably be different from yours. I’ve worked for 3 companies (hospital , and two commercial companies) I love the company I’m with now because the boss is good to us but the work is sometimes challenging and it’s almost always something different 👍🏻 I’m from south Texas for point of reference.
Been in the business 42 years, you have educated this old dog new tricks and I enjoy your concept on your videos. My specialty is troubleshooting systems ex. HVAC, Controls. I have learned more in the last year with the new toys that are now trade tools that I never had when working, I am now simi-retired. Keep tracking on and THANKS ! ! ! !
Thanks bud , I will be going live on UA-cam this evening 7/26/21 @ 5:PM (pacific) to discuss my recent uploads and answer questions from the chat come over and check it out ua-cam.com/video/f6_dxFO6940/v-deo.html
As a leyman knowing absolutely nothing about HVAC and its technicians I have to say I love your videos absolutely amazing content and always interesting. Thank you for the video
I dont know how I found this channel I dont have a background in HVAC but I can't get enough of his diagnostic skills great to watch. Thanks for the videos great job.
Great video and excellent comments about being "On Call". As an older school HVACR technician for a major restaurant chain, I found so many issues that could have been avoided by the regular technician performing their scheduled quarterly maintenance. Very simple stuff like belts, filters, lubrication, listening to the equipment etc. and so much of it was missed or ignored, until YOU get the emergency call at 11pm on a Friday night that an exhaust hood was down or a walk-in was hot. It's been 30 years since I've changed a compressor or handled a torch, but the current technology equipment you are using looks amazing for troubleshooting. I wish I was starting out now and had an HVACR tech with your skills, knowledge and dedication to learn from. It's still fascinating to watch good troubleshooting, and you do a very thorough job while at the same time adding commentary and tips. I moved from HVACR to building automation system (DDC) installation /repair/sales/engineering and that added a world of complexity. I would recommend to someone starting out to look into training on such systems and how they interface to and control HVACR equipment. It was a great career for 25+ years!
Actually according to the Viper Wetrag instructions it is fine to leave it on until it cools down. Quote from the datasheet: "After piping has cooled remove putty and place back into jar". It would be an interesting to put a temp probe in a pipe and see what happens.
I wonder if whatever polished the inside of that compressor is still in the system. Whatever polished it is small enough to get between the plates, but strong enough to withstand the continuous grinding motion. It'll have run the motor at a very high load continuously. I wonder if the scroll and the shaft now have play between them. Locked scroll but shaft could turn freely so the motor could run - possibly the shaft itself having received some polish as well. You could probably still check for that.
Last failure I autopsied looked the same. Mine was pulling LRA and I put a hard start on it and got it broke loose. It would run but not pump like this one. Scroll looked the exact same. Might have something to do with heat and lack of oil before failure
This was my first impression too, but then he showed the outside of the lower scroll plate. There were also these marks. And i doubt these came from manufacturing.
I had a head pressure control valve on a liebert that was stuck bypassing. I came up on it and it was running extremely high head pressure, cleaned the coil and it was better but it would slowly start to rise and eventually would trip the high pressure switch. Luckily I found it in time to save the compressor. But it was a fun one.
I love your videos. You sharing your videos and ideas and your followers sharing their ideas really helps a lot of us doing this profession to get things done right. On this unit an acid test once the CPR (Compressor) was removed would have been a good idea. Also, just because it was a CPR failure adding a suction dryer and changing the liquid line dryer would be a very good practice to follow. I stopped starting a system after a CPR replacement without the dryers being replaced, I learned my lesson the hard way. Dryers are cheap compared to other components in the sealed system. Adding a suction dryer is a good practice especially if you know you will be returning for further service, you can remove that suction line dryer at that point. I always made my suction line dryer’s easy install, easy removal. When doing this I make it so myself or the next tech can put a dryer on and take it off easy whenever the system had been opened or the chance of a contaminated refrigerant scenario took place. There’s no telling what a failed CPR has released into the sealed system when it fails. I learn a lot watching your channel and I’ve been doing this for 40 years, you can always learn something new. I like to share things I have learned over the years whenever I can. Thanks for the videos.
that spiral thing looked like it was missing a shiny piece the same size as you found i bet that piece made it through the compressor and got stuck in the valve finally
Man, great videos. Keep up the great work. I’ve been hooked on your HVAC videos since I’ve discovered your channel. I have Been in the trade for 5 years going on 6. I can tell you have some serious experience cause you make everything look easy!
I really like the sped up video with the music element added. Nice job! It's cool to see the process even though I'm not an HVAC guy. I'm sure there's a few of us out here.
I was curious why they don't put a small witch's hat screen on those head pressure control valves... Perhaps you should invent one! ;) Great vid Chris!
Paint marker decided to be artistic, but it will get the attention of a person working on the system that the receiver is marked lol. That was excellent experience and training for you r assistant in training, a lot gained by being present during that diagnosis.
If you use salt in that ice filled bucket you can push down the water freezing temp bellow 32 °F. Probably not too good for the tank to place in saltwater but you'll get much colder DIY tank cooler than regular water. By the way i like your videos and your explanations! Greetings from Hungary
One of the things I always found frustrating when I was on call was that they would call at two in the morning and they would say when I arrived 'oh yeah the problem started in the early evening but we tried to fix it to save calling you out ' Good gosh that is annoying. I didn't work in HVAC I worked in automotive coating plants on the technical side so I was on call across six plants running 24/7 pretty much. I would get called out all the time, even if it was a maintenance job, id arrive & assess the situation and call in who every was needed mostly the ones that had not answered their phones in the first place, they would answer when I called because they knew there would be repercussions if they didn't but often id fix the issue myself. Automotive body paint plants are where my speciality lies and it is a kind of a black art. I was technical director and so most times they would call me I was doing ridiculous hours. But now I have health issues so I'm no longer able to work. So I know how shite call out can be . Love your videos they are awesome I like the technical channels but especially HVAC and your videos are some of the best, :-)
Wow. I loved the anatomy of the Emerson compressor. The damage is 😑 wth on scroll But I loved the lengthy video after a long time. I know replacing compressor in night is ridiculous... Overall loved ur montages & appreciate your video.
Having *just* learned how scroll pumps work, it seems to me that they rely on extreme flatness between the geometry of the two plates to generate pressure; having any missing material at any part of the plates would create points for the pressurized gas / liquid to escape into nearby areas. It kind of looked like there was a bunch of tiny debris in the oil, and there was tons of black / grey crap inside the valve that was stuck open. Some or all of that may have been lining / part of the pump until it finally failed. Perhaps it started with a small amount of debris and escalated as more material was shaved away.
Chris - at about +27:50 your comment on the Wetrag compound is just backwards. Leave the heat sink compound on as long as possible so it can absorb the heat from the brazing operation. I use a pump spray bottle of distilled water (no minerals) to dampen and recharge the heat sink materials and wet cloths. I like La-Co's Cool Gel spray and paste, but to each his own. Taking the heat sink material off quickly allows the heat to travel into the valve and power-head where it can do real harm. Next time try spritzing distilled water; measure the temperature spread and fall with your IR thermometer. I think you'll be impressed with the difference. Water cools faster than air.
What are the fucking odds that this is the exact problem I ran into on a residential unit yesterday morning... cracked scroll. Compressing intermittently, motor perfectly fine.
@@nathang.1744 7. York unit. Pretty sure I know what did it in. Power interuptions in the area. Homeowner got it on film running backwards. Pretty sure a hickup in power caused it to run backwards mid cycle and and it got flooded back.
I like to cool my fittings rite away with a soaked rag so that it tempers the metal to make for a stronger joint. Helps eliminate vibration stress and prevent future leaks.
Funny how that works, I just heard you talking about headmaster failures not usually caused by the valve but improper practices, and here we are, great video
Also too Chris you can clip the pig tail on the mixing valve, head master and there’s a very good chance that it will stop bypassing. But on review of what you found that might not have worked.
I wonder if the scroll was rotating, but the sealing surface was shot (as seen from the autopsy), causing gas to bypass. Sort of like bad rings on an internal combustion engine.
I know you can't , but to hear Sister Hazel as background music would be cool ... Nice vid and the Picasso brazing is good stuff ... Lol ... And nice autopsy Dr Chris ...
I was looking for a comment that say the head pressure valve debris was from center at the scroll itself. Cracked of like hardened steel can? Another thing, overheating inside with cold outside and still lubricated (due HPV fail?) maybe can make the scroll heat expand and start rubbing and will then lack of compression due to wrong clearance? I was commenting because the video deserved it, Chris, don't stress about upload deadlines. There is a day tomorrow.
Chris, I have a question. On a piston type compressor and a split evaporator system, what would cause the pressures to stay equalized while the compressor is running? The compressor in question got so hot it kicked off on a thermal overload.
As Sam already posted open or brocken valves,( at this point compressor will shake) . Piston compressor, brocken shaft. Happened to me twice. Scroll - open internal unloader.
That dish at 1:42 is an Air Fiber Point-to-Point (PtP) bridge. Standing in front of it like that dropped their internet for probably a good 30sec to 2min lol, hope they weren't trying to run any credit cards.
@ 47 mins - as soon as you found that piece of metal on the control valve seat I thought why not some kind of the debris screen on the inlet side to protect from anything that might get loose in the system from damaging the valve or stopping its function. Same thing I have on my power washer that prevents anything from getting into the pump damaging the valves. That scarring on the scroll plate looks like something cylindrical or circular my possibly a small washer was spinning around getting pushed through the assembly. Finally got broken up and you found a piece of that stuck on the seat of the head pressure valve. Makes one wonder if there might be more pieces of whatever that came from, floating around in the system somewhere? Great video!!!
That fact that he keeps digging untill he finds out what caused the problem, I have mad respect for.
Even if he has to cut up a compressor.
takes a lot of patience
That’s the way any technician should work. Search out a problem until it’s solved not just say “we will have to replace the whole thing “
Really? If you're a tech, what do you do?not trying to be rude at all,maybe you're not in the trade but this is what we do as respectable techs
The most important thing I've learned from these videos is all AC's have a part called a Chingus. If I stock my van with lots of Chingus I should be good on most jobs.
Chingus....kahn?
@@jacobjche you might hit a wall here.. !
If chingus does not fix the issue, use more chingus. In dire circumstances, you can chingus a whole AC from the ground up with enough chingus.
Should you not stock your van with chingi? Need many chingus... chingi a plenty
I use the "WIDGET" brand of chingus.
1:55 That is a ubiquity UniFi Point to Point Network device. They are usually used for bridging networks from one building to another. Might cause a small interrupt if you stand in front of one. Should be mounted on an elevated platform so it would be a non issue.
-for the one guy that might ask later.
AirMax isnt part of unifi but still ubnt product
Always wanted to try messing with that air fiber backhaul.
@@thelol1759 havent try it myself but you should try giving those antennas a tinfoil hat, or not the whole antenna, just the horn
@@TonnyCassidy it sure is. That's a
PBE-5AC-US
@@Bryan-Hensley look at the horn, PBE have intergrated radio, thats rocketdish with radio on the back of it
you could always carry around a few popcorn kernels in your pocket. If they start popping, get the heck out of there. lol
if you're being exposed to microwave radiation strong enough to pop popcorn, you're gonna feel it long before the popcorn pops.
basically, popcorn pops by way of water in the kernel turning into steam. that same process applied to the human body is quite painful and results in deep burns.
@@rakninja humans can sweat to cool down though. Popcorn can't. That's why it pops.
And the old school style was in a frying pan not a microwave. So, should you ever happen to have popcorn kernels in your pocket while sitting in a frying pan with plenty of oil AND you don't notice the excruciating heat - get out when the popcorn is ready 🤪
@@Ch0rr1s thing is, sweat doesent work on internal tissues, where microwaves cause heating.
😂😂😂😂😂😂
🤪🤣🤣🤣🤣
39:45 that paint marker.. "nah I don't feel like working today...... OK HERE YA GO!!!!!!"
hvac daddy blessed us with TWO 80's brazing montages holy canoli
Dude loving the 80's brazing montages
Later one had some JMJ vibes... one of my favourite synth artists.
@@jussikuusela7345 Oxygen
It looked like a broken point of a razor blade knife. I love the autopsies. I appreciate the time and effort it takes on your part. Thanks so much.
You calling the culprit seconds before disassembling it (putting you on the line!) and it being exactly the thing, shows your immense experience. Great work!
Great job. I retired this March after 31 years in the Union. I was trying to get 35 and 62 age . Unfortunately I had a emergency brain surgery from a hematoma stroke. I worked for JCI/York. I did start up and New Product over view . ECO 1 and 2 box car and Air cooled chillers with compressor drive systems were my babies. Actually I traveled all around the world doing projects. But I am enjoying my family and grandchildren. Keep doing what your doing. Also as well you know the Industry is huge and can take you all over the world. Don’t miss out. Your knowledge and passion can get you there. Also when we said “ We’re going to do a CHINGAS for the LP switch “. I laughed and spit up my morning coffee. That was Hilarious . As a Latino I loved that. Keep it up
Your channel is really helpful for younger service techs like me, you have no idea. Did my first coil repair today, chilled water coil leak caused a flood in the entire room.. long day. Got a WIF tomorrow so I frequent these cooler/freezer vids a lot, thanks for taking the time to put these up bud.
You will find that these types of videos, by good channels like this, and there's not many I watch, are good for more than just apprentice. I've been in the trade 21 years, the reason I like to watch is first, it keeps you on point all year long, we go from focusing on heat for part of the year, then cooling the other part, we tend to get a bit rusty on certain things when we havnt done it for 5 or 6 months, and in this trade there's always going to be something you havnt come across whether it be newer systems you've never worked on or just a problem that's rare and you havnt seen. Never stop learning and you'll be a great tech man.
This is a great instructional video for someone learning the trade. i would highly recommend someone wants to go into a trade, look into restaurant refrigeration repair. Not a lot of guys want to do it and do it right. If you work for the right company with overtime you can make over $100000 y. You have to work outside a lot in bad weather. But most the time you are able work indoors. Also you never really have a slow time like if you just repair A/C and heat.
Your right , it has to be the right company but those are few and far between! Most of them will kill you and you will get burned out. 100,000 yr, you’ll burn out within 2 to 3 years.
Just started watching your videos a few weeks ago, long story short it got me missing commercial HVACR……I start my new HVACR job July 26th. Thanks for the awesome videos. I’ll be using them to elevate my skills and knowledge!
Even with his videos Chris doesn't give up. I seen your FB post about having difficulty uploading this video. Glad you were able to get it to the people. Pure dedication my dude.
That is no nitrogen used to make brazing connections. The recovery of any refrigerant needs to go thru a filter drier then recover. The polishing of the scroll surface shows a friction material was in the system. Since you did recover some oil, could be it was added from another service call previously. I figure that the contamination in the system bogged down the flow and jammed up the bypass. The compressor was overheating for a while. Scroll systems can take liquid better if it happens.
Almost looks like a piece of box cutter blade, did someone break his blade while deburring ?
To me it looks more like a part of those disposable Scalpels similar to a #10. Just the very tip is missing and of course the rest of the Blade, but how it got there is a true mystery.
Good eye
I thought the same, maybe it was broken off when someone opened a box or cut something and it fell into and never was caught.
Could it be part of the round blade of a copper tube cutter? Maybe someone had the blade break when cutting tubing for the original line runs of the system who knows how many years ago, and it fell into the piping and has been floating around inside the system for years.
Props for doing an autopsy to determine what went wrong and why. It's the only way to know for certain. I have always done them and that's how you learn. Much respect for you sharing your skills and knowledge!
Chris, you went full Sherlock on this one. Awesome! Great diagnostic skills! This is how you learn. I learned a lot! Great job (both video and repair)!
Love that '80s style montage music!
Man, you are puting a lot of effort to diagnose real problem, instead of fix and leave!
Appreciated all your effort to show every detail and to make videos.
" this... satellite looks... intimidating...." I was crying after hearing that! your thought process is awesome lol! i woulda thought the same thing... looks like its braced for war LOL
Owner shoop da whoop with it when nobody is watching.
That's what I do when we install p2p systems temporarily until we get a stable internet connection, we don't wanna cut tubes and have our customers whining about slow internet
I busted up on the part when Chris said it's probably giving me herpes or curing my herpes. Lol.
Have you ever had a compressor autopsy that revealed something so bad that you've had to return to the customer to do more troubleshooting and analysis?
The worst case is the compressor grenades itself and sends metal shrapnel through the entire system. No real easy way to fix that but take the entire system apart and flush the lines out so capillary tubes don't clog up in the evaporator or condenser.
Scroll compressors are so simple that it's not very common compared to other types of compressors. Swashplate compressors used in automotive applications are more likely to grenade themselves due to the large number of moving parts.
I can guess the compressor was running while severely overheating, heat expanding the metal created the severe wear. Once the compressor cooled it lost the ability to compress do to the gap created by the grinding. This may be a repeating proccess: compressor runs under amped with no flow; heats up and expands to the point it regains compression ability; bypassed TXV leads to overheat; grinding again; maybe locks; fuse trips
That's what I was thinking. Specifically the gaps in the scroll. Those need very strict tolerances to compress, wouldn't take much to cause the equivalent of a failed valve on a recip
I love how beautifully the wiring was done at the circuit breakers, With it all tidied up and coiled! You don’t see high quality workmanship like that anymore.
I’ve watched so many of your videos, and after all of it I’ve started thinking if I want to go into HVACR as my career. It’s always been an interest of mine and I love watching these videos to know more about what goes on. Keep up the great work!
Bro! Go for it! If there’s a technical college near you and it all lines up, take the 1 year course ( you’ll learn the most from the first year, in my experience 2nd year was just learning residential codes/ energy management and a little bit of refrigeration (most important one) but the curriculum I went through will probably be different from yours. I’ve worked for 3 companies (hospital , and two commercial companies) I love the company I’m with now because the boss is good to us but the work is sometimes challenging and it’s almost always something different 👍🏻 I’m from south Texas for point of reference.
Been in the business 42 years, you have educated this old dog new tricks and I enjoy your concept on your videos. My specialty is troubleshooting systems ex. HVAC, Controls. I have learned more in the last year with the new toys that are now trade tools that I never had when working, I am now simi-retired. Keep tracking on and THANKS ! ! ! !
Thanks bud , I will be going live on UA-cam this evening 7/26/21 @ 5:PM (pacific) to discuss my recent uploads and answer questions from the chat come over and check it out ua-cam.com/video/f6_dxFO6940/v-deo.html
Thank you
As a leyman knowing absolutely nothing about HVAC and its technicians I have to say I love your videos absolutely amazing content and always interesting. Thank you for the video
I have never thought that HVACR work was easy. But I do appreciate the hard/smart work.
I dont know how I found this channel I dont have a background in HVAC but I can't get enough of his diagnostic skills great to watch. Thanks for the videos great job.
The music during brazing hits just right
Great video. The comments about the microwave dish were hilarious.Thanks.
I love the 80’s montage moments in your videos 👍So good
Great video and excellent comments about being "On Call". As an older school HVACR technician for a major restaurant chain, I found so many issues that could have been avoided by the regular technician performing their scheduled quarterly maintenance. Very simple stuff like belts, filters, lubrication, listening to the equipment etc. and so much of it was missed or ignored, until YOU get the emergency call at 11pm on a Friday night that an exhaust hood was down or a walk-in was hot. It's been 30 years since I've changed a compressor or handled a torch, but the current technology equipment you are using looks amazing for troubleshooting. I wish I was starting out now and had an HVACR tech with your skills, knowledge and dedication to learn from. It's still fascinating to watch good troubleshooting, and you do a very thorough job while at the same time adding commentary and tips.
I moved from HVACR to building automation system (DDC) installation /repair/sales/engineering and that added a world of complexity. I would recommend to someone starting out to look into training on such systems and how they interface to and control HVACR equipment. It was a great career for 25+ years!
It was nice to see how organized the person that wired this unit up did his job. Very neat.
Actually according to the Viper Wetrag instructions it is fine to leave it on until it cools down. Quote from the datasheet: "After piping has cooled remove putty and place back into jar". It would be an interesting to put a temp probe in a pipe and see what happens.
The piece stuck in that headmaster looked like the tip end of a utility blade
Really stepping up the UA-cam game here Chris! I like the montages with music especially watching during the gym and working out!
I learned to carry a box of various armored capillaries so I didn't have to field fabricate a chingus line.
I wonder if whatever polished the inside of that compressor is still in the system. Whatever polished it is small enough to get between the plates, but strong enough to withstand the continuous grinding motion. It'll have run the motor at a very high load continuously. I wonder if the scroll and the shaft now have play between them. Locked scroll but shaft could turn freely so the motor could run - possibly the shaft itself having received some polish as well. You could probably still check for that.
Love the way you edited the brazing sections, always enjoy learning from these videos
The marks on the compressor looked like the tooling marks from a worn end mill. Wonder if that was a red herring?
Last failure I autopsied looked the same. Mine was pulling LRA and I put a hard start on it and got it broke loose. It would run but not pump like this one. Scroll looked the exact same. Might have something to do with heat and lack of oil before failure
This was my first impression too, but then he showed the outside of the lower scroll plate. There were also these marks. And i doubt these came from manufacturing.
I will discuss this on my Livestream this evening 7/26/21 @ 5:PM (pacific) come check it out ua-cam.com/video/f6_dxFO6940/v-deo.html
You’re so good at what you do!
Love your videos. Thanks for taking me with you.
I had a head pressure control valve on a liebert that was stuck bypassing. I came up on it and it was running extremely high head pressure, cleaned the coil and it was better but it would slowly start to rise and eventually would trip the high pressure switch. Luckily I found it in time to save the compressor. But it was a fun one.
I have installed a ball valve in the bypass line. Doing that can save you on those late night calls. Awesome call and video.
When I’ve seen those relays I found they were used to interlock the compressor and the defrost heaters
Great video Chris great job in replacing the compressor and explaining the situation and the autopsy report with very interesting keep safe dude 👍
I love your videos.
You sharing your videos and ideas and your followers sharing their ideas really helps a lot of us doing this profession to get things done right.
On this unit an acid test once the CPR (Compressor) was removed would have been a good idea.
Also, just because it was a CPR failure adding a suction dryer and changing the liquid line dryer would be a very good practice to follow.
I stopped starting a system after a CPR replacement without the dryers being replaced, I learned my lesson the hard way.
Dryers are cheap compared to other components in the sealed system.
Adding a suction dryer is a good practice especially if you know you will be returning for further service, you can remove that suction line dryer at that point.
I always made my suction line dryer’s easy install, easy removal.
When doing this I make it so myself or the next tech can put a dryer on and take it off easy whenever the system had been opened or the chance of a contaminated refrigerant scenario took place.
There’s no telling what a failed CPR has released into the sealed system when it fails.
I learn a lot watching your channel and I’ve been doing this for 40 years, you can always learn something new.
I like to share things I have learned over the years whenever I can.
Thanks for the videos.
that spiral thing looked like it was missing a shiny piece the same size as you found i bet that piece made it through the compressor and got stuck in the valve finally
Man, great videos. Keep up the great work. I’ve been hooked on your HVAC videos since I’ve discovered your channel. I have Been in the trade for 5 years going on 6. I can tell you have some serious experience cause you make everything look easy!
😀Thanks for always going into great detail! Extremely helpful and appreciated. ☺️
Absolutely fascinating.
I really like the sped up video with the music element added. Nice job! It's cool to see the process even though I'm not an HVAC guy. I'm sure there's a few of us out here.
I was curious why they don't put a small witch's hat screen on those head pressure control valves... Perhaps you should invent one! ;) Great vid Chris!
Another great video Chris! My favorite channel for sure
Thanks bud
Another great video, thanks!
Sick retro 80's songs ! hell yea bro
That dish is a 5.8 GHz point to point microwave link. Very low power so no worries. 📡😎
Great video 📹thanks for sharing 👍
I don't know why but the movie Rad pops in my mind. Lol. Good job guy!
Saving this one for later. A 55 minute video means it'll be one worth paying good attention to.
Two montage sequences, a hilarious opening line at the (1:00) mark, and a longshot that shouldn't have been possible, but was, and an autopsy!
Viewed it, and as always interesting. And revealing some weird sh..
Paint marker decided to be artistic, but it will get the attention of a person working on the system that the receiver is marked lol.
That was excellent experience and training for you r assistant in training, a lot gained by being present during that diagnosis.
If you use salt in that ice filled bucket you can push down the water freezing temp bellow 32 °F. Probably not too good for the tank to place in saltwater but you'll get much colder DIY tank cooler than regular water.
By the way i like your videos and your explanations!
Greetings from Hungary
Thank you for posting brother
nice vid great muskick, interesting how the dual pressure control used plastic hoses instead of copper
One of the things I always found frustrating when I was on call was that they would call at two in the morning and they would say when I arrived 'oh yeah the problem started in the early evening but we tried to fix it to save calling you out ' Good gosh that is annoying. I didn't work in HVAC I worked in automotive coating plants on the technical side so I was on call across six plants running 24/7 pretty much. I would get called out all the time, even if it was a maintenance job, id arrive & assess the situation and call in who every was needed mostly the ones that had not answered their phones in the first place, they would answer when I called because they knew there would be repercussions if they didn't but often id fix the issue myself.
Automotive body paint plants are where my speciality lies and it is a kind of a black art. I was technical director and so most times they would call me I was doing ridiculous hours.
But now I have health issues so I'm no longer able to work.
So I know how shite call out can be .
Love your videos they are awesome I like the technical channels but especially HVAC and your videos are some of the best, :-)
Hey Chris.. great video.. still blows my head off with the electrical installs in the states.. not bad just different.. keep up the great work
Wow. I loved the anatomy of the Emerson compressor. The damage is 😑 wth on scroll
But I loved the lengthy video after a long time. I know replacing compressor in night is ridiculous...
Overall loved ur montages & appreciate your video.
I’m so excited to watch this
what kind of and brand are the wrenches you used to undo the dryer fittings?
Knipex pliers wrenches
Having *just* learned how scroll pumps work, it seems to me that they rely on extreme flatness between the geometry of the two plates to generate pressure; having any missing material at any part of the plates would create points for the pressurized gas / liquid to escape into nearby areas.
It kind of looked like there was a bunch of tiny debris in the oil, and there was tons of black / grey crap inside the valve that was stuck open. Some or all of that may have been lining / part of the pump until it finally failed. Perhaps it started with a small amount of debris and escalated as more material was shaved away.
It certainly looked like metal scuffing in that scroll. I wonder if the black goo was metal particles in oil that were ground off the scroll.
I will discuss this on my Livestream this evening 7/26/21 @ 5:PM (pacific) come check it out ua-cam.com/video/f6_dxFO6940/v-deo.html
@@HVACRVIDEOS I'd like to see what these look like new to rule out mill tooling.
Good video thanks for leaving in the mistakes.👍👍👍
I will discuss this live on UA-cam this evening 6/26/23 @ 5:PM (pacific) come on over and check it out ua-cam.com/users/liveYfxH9CHqIz4
Chris - at about +27:50 your comment on the Wetrag compound is just backwards. Leave the heat sink compound on as long as possible so it can absorb the heat from the brazing operation. I use a pump spray bottle of distilled water (no minerals) to dampen and recharge the heat sink materials and wet cloths. I like La-Co's Cool Gel spray and paste, but to each his own. Taking the heat sink material off quickly allows the heat to travel into the valve and power-head where it can do real harm. Next time try spritzing distilled water; measure the temperature spread and fall with your IR thermometer. I think you'll be impressed with the difference. Water cools faster than air.
Great video!! Watch to the end!!
the music in this episode of trubbleshoting wtht chris was on point, very nice
They are trying to contact aliens with that dish 😂
Great video, thanks for the upload. Love the montage music.
What are the fucking odds that this is the exact problem I ran into on a residential unit yesterday morning... cracked scroll. Compressing intermittently, motor perfectly fine.
interesting.. wtf copeland
that compressor looked farely at least 5+ years old on his.. how old was the one you were working on?
@@nathang.1744 7. York unit. Pretty sure I know what did it in. Power interuptions in the area. Homeowner got it on film running backwards. Pretty sure a hickup in power caused it to run backwards mid cycle and and it got flooded back.
I like to cool my fittings rite away with a soaked rag so that it tempers the metal to make for a stronger joint. Helps eliminate vibration stress and prevent future leaks.
great job chris!thanks for sharing
Amazing video, thx for do it ( taking all the work ) you are one of the best !! And I am on the try ( i have my own business for 27 years )
Love the " Air Wolf" working music
Funny how that works, I just heard you talking about headmaster failures not usually caused by the valve but improper practices, and here we are, great video
Also too Chris you can clip the pig tail on the mixing valve, head master and there’s a very good chance that it will stop bypassing. But on review of what you found that might not have worked.
Strainer for head pressure control valve yes but another filter will be a restriction if u already have a filter drier.
Just as a side-note: Music that played @ 15:10 was bloody excellent. Took me right back to the mid-80s . . .
I wonder if the scroll was rotating, but the sealing surface was shot (as seen from the autopsy), causing gas to bypass. Sort of like bad rings on an internal combustion engine.
Awesome job.👍😊
“Either giving me herpes or curing me from it” 😂😂😂
That's something I would expect out of AvE.
I know you can't , but to hear Sister Hazel as background music would be cool ... Nice vid and the Picasso brazing is good stuff ... Lol ... And nice autopsy Dr Chris ...
keep THE the 80s music I like it's a really chill I also like when the camera is like sitting on the side instead of strapped to your head :-)
hard work pays off Chris
I was looking for a comment that say the head pressure valve debris was from center at the scroll itself. Cracked of like hardened steel can? Another thing, overheating inside with cold outside and still lubricated (due HPV fail?) maybe can make the scroll heat expand and start rubbing and will then lack of compression due to wrong clearance? I was commenting because the video deserved it, Chris, don't stress about upload deadlines. There is a day tomorrow.
What a call !
Those marking on the scroll head are from the cnc milling process, they are made buy the milling bit.
Chris, I have a question. On a piston type compressor and a split evaporator system, what would cause the pressures to stay equalized while the compressor is running? The compressor in question got so hot it kicked off on a thermal overload.
Bad valves or blown internal bypass in the compressor. Low amps. Time for a new compressor.
As Sam already posted open or brocken valves,( at this point compressor will shake) . Piston compressor, brocken shaft. Happened to me twice. Scroll - open internal unloader.
I’m retired and get to feel like I keep my skills up, from may easy chair. Thanks😉
That dish at 1:42 is an Air Fiber Point-to-Point (PtP) bridge. Standing in front of it like that dropped their internet for probably a good 30sec to 2min lol, hope they weren't trying to run any credit cards.
Fascinating video. Thank you for the upload. Could you explain what the gas ballast dose please.
at the pipe welding i didnt see You use nitrogen flush to avoid copper get an oxid layer , as i know its killing the compressor and the exp valve.
@ 47 mins - as soon as you found that piece of metal on the control valve seat I thought why not some kind of the debris screen on the inlet side to protect from anything that might get loose in the system from damaging the valve or stopping its function. Same thing I have on my power washer that prevents anything from getting into the pump damaging the valves. That scarring on the scroll plate looks like something cylindrical or circular my possibly a small washer was spinning around getting pushed through the assembly. Finally got broken up and you found a piece of that stuck on the seat of the head pressure valve. Makes one wonder if there might be more pieces of whatever that came from, floating around in the system somewhere? Great video!!!
That's a surprisingly nice wiring job.