WHY DID IT SHORT TO GROUND?

So this was a mystery, I never found out why it shorted to ground but I have a hunch.
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00:00 TEASER
00:19 SPONSOR CARD
02:07 WTF MOMENT #1
03:19 TORCH PSA
05:01 JUST TAP IT IN... TAP TAP A-ROO
05:24 WTF MOMENT #2
08:37 BRAZING TIME
11:11 WTF MOMENT #3
12:21 EVACUATION TIME
13:10 LIFE HACK
16:04 SYSTEM VITALS
18:51 CLOSING WORDS

[@OrionRoen]

Your channel is so underrated. For someone like myself that has ZERO HVAC experience, this is good and quality content! Keep it up!

[@mdamaged]

Man's got good work habits, seems to take pride in his work. Never half-asses anything I've seen so far.

[@Adeadcop702]

My instructor plays these vids for us I'm 4 weeks in

[@ty2148]

"I'm working on getting my whole van up here." I almost spit my beer out. I felt that like I did the same thing this morning.

[@deanjt]

Watching this at midnight Sunday in Australia - was going to go to sleep…but then there is this video.

[@DillonV]

Now I’m watching it at midnight in America on Sunday night lol same deal

[@kat2641]

@@DillonV lol is 3 a.m. in Michigan.. couldn't sleep an said hell ya I got a vid to watch. ;-)

[@donnierobertson3088]

Great job and video like always

[@timcastilo6962]

I'm a year into the field and 22 years old. I love how much pride you take in your work. I wish my boss/company would hold their work to this standard. I've been watching this channel for a couple years now and you have taught me so much

[@oxforddispatch9733]

I don't think it's said enough. Thank you Chris for all the time you put into these videos sharing your experience. We know you don't have to do this for us but please know it is very much appreciated! I always look forward to Sunday morning HVACR school.

[@josephconway1968]

Chris is awesome!!

[@chevydmax237]

I agree

[@hvacexplained9341]

On those carrier units I typically lift up the roof and put a tool underneath in order to change contactors and checked electrical connections because carrier was so nice to Jam everything right in that compartment near the roof LOL. Engineers: Well it looks good on paper let’s go with it! Techs: If I meet the engineer that designed this I’m gonna punch him right in the nose!

[@hvacexplained9341]

@Richard Cranium : I remember one time there was a brand new install and the customer wanted the company that installed it to have the maintenance contract. He said that those guys refused ???? Right there that tells you something…. It tells me that it was going to be a royal pain to do the maintenance because they did not install it properly. It happens a lot in this field you have a random unmarked vehicle and technicians that don’t have regular uniforms on just ripped up dirty T-shirts and blue jeans they slap it together and leave. End result I ended up getting that contract for about 14 years. The first maintenance I performed I had to remove the high-voltage wiring from entering the unit because you could not change an air filter along with putting Furnco’s in the condensate piping and moving thermostat wiring all because they took the easy route and it block the air filters from ever being changed. Believe it or not I had to literally cut a roof section open on two of the units in order to change the blower motors because they mounted the units so close to ductwork.

[@bborkzilla]

Haphazard wiring triggers my OCD - glad to see I'm not the only one!

[@jonhu4127]

It's wonderful how mindful you are that your words might be taken differently by the techs that these videos are actually made for. Much respect for clarifying your intent when something could be taken the wrong way. More managers could learn from you on that subject.

[@JoeMama-jf3zd]

I just woke up, best way to start the morning

[@Paulie1232]

You need a life

[@davidhl672]

Literally same. But i got work today unfortunately

[@supporthero4926]

That oof when the torch did a number on the condenser. Though considering the shape it's in, not like it could be much worse 🤣

[@shifter8207]

I worked on a newer version of that unit about 2 weeks ago and we have had nothing but issues with it as a company and the metering device, drier were all replaced due a refrigerant flow issue and i got sent there the compressor was short cycling on low pressure and hooked my probes on it and found there was a restriction at the outlet of the condenser . Low and behold i cut the system open and isolated the condenser and could hear something rattling in the liquid header i had to drill out the end of header and caught a piece of round manufactured copper piece in there which looked like it was when Carrier pressed out the tube sheets. Would love to claim warranty but it was passed on it

[@TheWoodman064]

You are one of the very best in your knowledge and work!

[@eduardoacosta2315]

Thank you Chris again and again I am so excited about all your good videos God bless you 🙏 and your family

[@SonsofIssac]

I’ve been doing this since 2016. I can hold my own but have by no means “arrived”. Your channel is one that I watch regularly to learn new things. There have been several times when one of your videos addresses the exact issue I was dealing with. Thanks for taking the time to post this video

[@firekraqr]

Again, thank you for making sure the environment in which tasty beers come from remains optimal :) I was there last week. It's fun to try to find out which rooftop you're on, particularly since I'm familiar with the area.

[@brent562]

You deserve much more credit for the quality of content and knowledge you are transferring. When it comes to proper technique and procedures my companies most “experienced” vets don’t hold a candles flame to you….. Nitrogen, proper torch tips, safety, etc., what in the world are those things. New to the trade and already it seems I must learn twice, the right and the wrong so I can eat, and be willing to unlearn when the time is right!

[@justice4all603]

Great Job Chris! Good work and nicely done!!!

[@marlonprice4165]

Top notch work buddy. Thanks for the videos

[@jeremyduran8896]

Thank you for this channel man and all the effort you put in. Been a tech for ~2 years and I've learned more from your channel than I have from my leads. They've all been great, but your approach is so thorough that it always helps me learn about things I would otherwise overlook. Better for me, better for my customers, better for the company - everybody wins. Cheers

[@kat2641]

Yep I fully agree... My old mentor boss always said a good teck learns something every day! An I have been doing this for the better part of 40 years and I still learn new tricks watching these videos...an old saying is; even old dogs can learn new tricks ;-)

[@takethe101totarzana4]

Got an affiliate link for a multimeter I ordered. Thanks Chris. Keep up the excellent videos. 👍

[@paulb4496]

Mr. Chris, I use your videos in my class (I teach level 3 hvac for the local apprenticeship). I hope you don't mind. Thanks for the tricks and tips! You are THE MAN!

[@mattluongo7763]

Only do residential myself, nor do I have any interest in RTUs but I enjoy your videos and have learned stuff from you the helps me help my customers. Thanks for that.

[@josephconway1968]

Just ordered a 🧢 and 👕 last night. Show my support here in the Northeast (Connecticut)! Dig what you do!

[@vasquezralph8514]

Great job sir. You make it look easy..

[@Ted_E_Bear]

Great job Chris !

[@c117ls7]

Early morning Sunday upload. Nice! Good morning Chris!

[@lupe6786]

Excellent work as always!

[@𝓐𝓶𝓫3𝓻𝓼𝓪𝓶]

one of the best techs in the biz..really enjoy his work.

[@harbbains5718]

Great videos with quality content !!!

[@LifeisAmazingify]

Finally, someone else who cleans up the ugly wiring on those carriers. I usually go through half a bag of wire ties.

[@ralphwoodard609]

Hi again, enjoy watching your videos. I’ve noticed also that you’ve gotten back into a little bit of a bad habit on your brazing the joints. I think you can save yourself some solder and it will look better if your heat from the backside and solder from the front.

[@craigbraswell4269]

I like the tip about the contactor lugs..... I will be using that one!

[@Muslim9414]

Thanks man for sharing with us your experiences I have learned a lot of watching your vedios

[@jasonjohnsonHVAC]

Another Sunday...Another HVACR video. Got my cuban coffee....im set

[@kobie4238]

Thanks for the vids ‼️

[@aswertus]

Perfect start of a Sunday afternoon 😍 Greetings from Austria 🇦🇹

[@c117ls7]

I'm on east coast of US, it's early AM here. Lol

[@aswertus]

@@c117ls7 nearly 2pm in Europe 😄

[@m.s.6545]

Honestly, i dont understand the most of the stuff you doing there, BUT it is indeed very interesting and let me get a peek into stuff, i didnt see under normal circumstances. You would be a good doctor too !

[@garageink74]

I didn’t know that about contractors with lugs. 👍 I will be using that tip a lot.

[@gregbowman3598]

Good video Chris👍

[@mc-sp8zr]

It's always fun watching someone else do a Carrier compressor... I was lucky to get into a management role earlier than expected, I hope when you decide to hang up your boots that your body is still in good shape. Especially someone with your skill and ability to teach and speak so clearly, you could probably make a great living without having to get your hands dirty ever again.

[@josephconway1968]

Any trade school would be LUCKY to have him as an instructor!!

[@July4.1776]

I used to co-own an HVAC company with 12 employees. I was always troubleshooting customers and employee problems… It was miserable, so I sold my ownership and started my own 1 man company and life has never been better. I’ll never hang up the tool bag. My happy place in life is standing in front of a broken piece of equipment.

[@mc-sp8zr]

@@July4.1776 As long as you don't become one of those broken pieces of equipment down the road. Mentally we could all do this forever, but our knees, backs, and other parts don't feel that way unfortunately.

[@IBenZik]

Free tip Sunday. Great video

[@Ran121]

I got nothing to do with hvac but still verry mutch enjoy Watching your vids, with might make me a strange one but hey, thx for the reggular uploading, i really enjoy your vids

[@williambutler7312]

respect from Arizona

[@rodgraff1782]

I used to install suction line driers on their side, but was told to install them vertically, or at least at a 45 degree angle facing down, because they can trap oil, especially the large ones, with removable cores. I realize a lot of systems may not have the configuration to do this. Good video.

[@craighvac1808]

I often wonder what the hell carrier was thinking when they constructed their electrical sections in those rtus

[@DrHakennase]

I work in germany and we allways have some sort of cable channels of some sort^^ The cables in those units are really messed up

[@ehsnils]

@@DrHakennase I agree - and I would even have considered multi-wired cables between some points in those units instead of just a bunch of loose wires in the units that looks like a spaghetti accident. I'd consider to use a cable designated FKK (standard SS 424 17 01) here in Sweden with the more complex CENELEC code of H05VV-R. (in my opinion the CENELEC code is a lot harder to memorize). For outdoors installations on buildings I like to use the shielded EKLK or EQLQ, (Cenelec N07VA5EV-U), even though it might be overkill in some cases.

[@bradgoodale3249]

Same here in Auz land Chris still heaps of old units on 22 but very expensive for customers R422d i think we use so many different refrigerants cant keep up.

[@justinperry68]

Lol, omg that life hack, in the trade for 20 years, never thought of that😢

[@David.rivas.alexis]

@29:29 ayeeee I noticed the KZbin silver play button !! 🤙🏼 💯

[@Valeij221]

I love it because when you remove compressors you let the soul create music while the compressor laughs that your taps are futile! 😂

[@MrRodriwar]

Disfruto sus videos... exelente

[@Jeff-mi5xx]

The company I used to work at used R404a in all of their equipment. They switched to 449 and 134a for the shake machines and juice dispensers.

[@lutboy2909]

Wooo that was a trickier one, and yes i dont like those old carrier weather master because the wiring its a mess, since news, also nice life hack with the contactors i nenever guessed that were possible Ps: any advice with the "new" r410a carrier's, those with direct drive on the turbine, its just a kind of inverter motor connected directly to the turbine

[@jlvcm]

I finally see the wires all fixed 🤘

[@mbwanaali6278]

Good job and good

[@eye8owne8u]

Good morning!

[@July4.1776]

I’ve seen leaks in that exact location on several occasions. Vibration is likely the culprit.

[@benkeysor7576]

When you set you torch pressures you shouldn't need to set them at more than 5 PSI each. As far as your acetylene pressure you NEVER set it more than 10 PSI because it can become unstable past that pressure which means bad things can happen. If you need more than 5 PSI, you have a problem with your torch not your regulators.

[@elijahtalbot5288]

Nice video

[@neilvestervictor180]

great job Chris on this mess big picture diagnosis master lol

[@randomrefrigeration4564]

Chris great job!!! It’s supper cool when you clean those pistons, you can actually see it working, the nitrogen blows out harder as the wax melts and the piston clears I have used this method several times and had great super-heat after. To heck with buying the expensive TXV kits Trane and Carrier offer when this method works every time and by the way it’s keeps working. I have been back on a pm a year later and still running great superheat. Are you going to return to remove that suction drier or only if needed in the future will you pull it out ??? Thanks

[@williampatriot5622]

2:18 I kid you not, that EXACT issue just happened on a unit last Thursday, hairline fracture most likely caused by overheating and vibration

[@mc-sp8zr]

I did a lot of these models for Rite Aid years ago, my suspicion was always imapcted coils (when guys didn't know to split) that lead to the overload and vibration. Nothing against the unit design, but they become such a headache when they are poorly maintained (more so than something like a Lennox L-Series).

[@nissangtr3466]

Watching this as a drive to an AC call 🤙🏼

[@rossy9549]

I have had a bunch of liebert mini mates with the compressor discharge line with cracks in them at the first bend.

[@rodgraff1782]

Sounds like a design problem with the discharge line. You may have to install mufflers to take the pulsations out of the discharge line. I worked on a lot of large lieberts, and they always sent us mufflers to put in the discharge piping.

[@JoelCrager]

TECH TIP I have found that a cheap plastic comb the finer bladed half works wonders on straightening condenser fins. So next time you are at Walmart grab an assortment pack of cheap combs. Saves a heck of a lot of time and no need to use anything metal. Thanks for sharing.

[@sureshkumarc.k6534]

Mornin chris

[@dwing2146]

You Make brazing look so easy

[@paulb4496]

Some early Carrier scroll (Carlyle) compressors (circa 2005) were famous for vibrating enough to crack suction and discharge lines. They would even rip the bolts out of the base. I HAD 2 THAT CRACKED THE WELD WHERE THE MOTOR IS WELDED TO THE COMPRESSOR SHELL AND IT LEAKED AT THE SHELL.

[@riccardoz2953]

Greetings from Italy, and thanks for the interesting videos about those units ! i see u often fix or redo electrical cabling, even main wires. In this video, at min 15:01 u were showing the main power wires that from the main switch goes through the metal carcass up to the main control area. Those wires should'nt be protected with a secondary insulated pipe or at least with a rubber\plastic plug to avid the rubbing of the wires against the metal frame?

[@michaelmartinez562]

Hi Chris, love the videos man! Just wondering, I spend a lot of my time working on highwall split systems in Australia. I’m a 3rd year apprentice and just wondering what’s the best way to go about testing Circuit boards in the condensor? Cheers

[@PatIreland]

Your R-22 comments were well-said.

[@adrianperez5628]

I had mentioned before about using Primary Wire as the wiring inside the units, as it’s not THHN wire inside of units. And ol’ timer (well older than me) would use something like Primary Wire after the disconnect. It’s not car wire i.e. amplifier wire because it isn’t transparent. It was more like Welding Lead wire. Do you know what I’m referring to?

[@bait28]

Saw the torch hit the condenser, felt that one. Does it cause any damage worth caring about?

[@peckservers]

Was wondering the same thing. I'd imagine the Fins are aluminum, and the condenser pipes themselves are probably copper so as long as there's no refrigerant leak it probably wouldn't mess with the capacity of the unit at all

[@albertmcalister9066]

The cracks in the curve on that suction line are quite common place on Carrier package units. I have sweated a number of those cracks up without a problem. Carrier made those tubes out of rigid copper and when you sweat the crack it anneals the copper.

[@badzioch64]

Try Yellow Jackets fin comb kit. Excellent.

[@moonlightacmaintenance3232]

What do you typically charge customer for parts above cost percentage wise? IE contactors , compactors , transformers etc….. I’m sure it varies as the ticket items get more costly. Any advice would be appreciated.

[@bwcklein]

Chris, do you ever use Rx-Acid Scavenger along with new suction and liquid line filter driers?

[@archangel3237]

In the automotive AC world we use a flourecant dye in the oil so if there is a leak its very obvious under a blacklight. Do they do that in the hvacr industry?

[@rocky7gd]

Love the electrical problems

[@metalfusion67]

whats your opinion on 'ecofreeeze' replacement refrigerant for R22?

[@ThaDocta0623]

You’re lucky to have a tech. The company I worked for would consider this a one person job. Probably why I could never measure up to their expectations.

[@saulurena7681]

Question, theoretically, can you check continuity through the pressure switches to see if they still work?

[@haydenedwards6603]

question, when you where sweating in one of driers you hit the condenser in two spots (10:54 ish) did that cause a leak?

[@TaRgEt0ZeRo]

no, just allu fin that melted for sure

[@July4.1776]

Nope, he’s good.

[@mikee2923]

Looks like it didn’t have a low pressure cutout. Instead they use a loss of charge switch on the high pressure side which is next to useless. Also on those style Carriers, it’s always a good idea to upsize the #1 compressor contractor from a 30 to a 40 amp contactor because the #1 compressor contactor also brings on the condenser fan motors. I’ve seen countless times where the #1 contactor will blow apart and #2 will run and cycle on head pressure. I’ve even seen a lot of these that don’t have any high pressure cutouts so #2 will just run until it dies. Also as someone else asked about suction line filters, I never install them because they need to be monitored and removed whenever they clog up and cause a large pressure drop. Most customers are too cheap to pay for the service.

[@ptsbc941]

I've never seen a line crack like that lol. Thats nuts

[@DanO181919]

So, it says R448a is a replacement for R404a and R22. Do you recommend R448a as a R404a replacement?

[@ed6837]

I always hated the Carrier power terminations with the wire nuts. Sloppy. But that's the factory for you

[@ESchwanzHVACdoc]

Just wait for California's next move on refrigerant types. Right now manufacturers are in development testing with R32 & blend like R454B to meet California's GWP restrictions. Fun! More types of gas you'll have to keep on hand. Oh and BTW they're A2L , so hope for no leaks ever....

[@marcusholloway3317]

QUESTION On that job How much time Does it take to complete that job. Would it be 8 hours journeymen 8 hours apprentice? I have a problem with underbidding

[@kat2641]

Marcus, we bid the job according to the man hours we figure + 10% for unexpected. But when is 2 of us on the same job ? It's man hours times two.. We charge Full rate for both persons. ( Helps absorb the expense of workman's comp, unemployment an insurance. ) Just because my helper is not a Master, does not mean that he/she does not work any harder than I do 👍 (We got 2 razor sharp female tecks an If I didn't add "she"? Lol they would not let me forget about it 😅 ) . . Bidding is a roll of the dice and there is always unexpected developmnts on every job. Sometimes it just isn't in the cards an we just break even. My old first mentor told me, if you're getting every bid you turn in? Your too low. An he was right..

[@jayzzz1234]

Bit off topic have you tried your thermal imaging camera on a freezer door frame heater? Nice videos keep them coming.

[@rickycunningham6368]

my bro in law has. looked pretty good, worked well apparently

[@jayzzz1234]

Okay cool we have a company that puts the heater in for us we come in and terminate it, wonder sometimes if they've run it all the way around, got a flir c5 on order in a couple of weeks, can't find any videos on it.

[@rickycunningham6368]

@@jayzzz1234 just found this man. hopefully this is useful, hope you are well stay safe kzbin.info/www/bejne/l36vhWSDmNlkmKc

[@rickycunningham6368]

kzbin.info/www/bejne/h37amZeOl793bNk

[@HiddenResolve]

Do you have to go back a few weeks later to remove or replace the suction drier?

[@NoeArauz]

No, those stay there untill/unless the tech does a acid test later. In this case since he blew out both (assuimng, he showed blowing out the evaporator coil) coil and removed an oil p-trap (liquid line part) and new suction and liquid line drier and new R22, he SHOULD be good as new. IF a later acid test came positive and he wanted to do a quick fix, he would replace both the liquid and suction drier with new ones and replace the refrigerant and possibly the oil. OR at that point ask the customer to replace or he would decommission the second stage.

[@nickcampbell8096]

If you don’t have a noticeable drop across that suction line filter drier after a few months are you just going to leave it in place?

[@sherwinalvarez7365]

Its for safety. Just leave it in.

[@HVACRVIDEOS]

Yeah I will leave it in

[@Samthe17]

Nice multiple camera setup. Which GoPro is that?

[@HVACRVIDEOS]

The hero 9

[@randomrefrigeration4564]

Don’t blow it backwards blow the wax into the evap and let it live there. I have done it 5 times but who knows maybe mine were not as bad as you’ve seen. Sure bet though when you see the pistons frosting up they are restricted Thanks foe the video Oh will you have Neck Gator merchandise?

[@DieterMe]

You should make your leakage Test at least at the working pressure or above.If a unit is working at 350 PSI you should Test at 350 PSI and not below !

[@markbeiser]

I get why you don't use the R22 alternatives, but the new compressors come with POE oil in them, so R407C is an easy call for most of us.

[@sokoladnan]

Greetings from Sweden, question you are mixing nitrogen with r22 for leak search, are you using any specific ratio? Or is it just so that you have something in that detector can pick up

[@HVACRVIDEOS]

Yeah there is no specific ratio I just put about 50 ish psi or R-22 and the rest is nitrogen

[@sokoladnan]

@@HVACRVIDEOS Thank you for answer, great video as always 👍🏻

[@sampantiliano]

Had the same exact unit do almost the same exact thing two weeks ago. Compressor shorted to ground no leaks. Replaced compressor/drier. Good leak check 500 vacuum weighed in charge. Two days later suction line split in the same spot. Fixed leak checked good vacuum two days later flat again leak in the middle of the condenser coil. WTF?

[@rogerghiardi7723]

Ran itself to death, great video.

[@jst1606]

Man I wish I knew that contactor trick earlier

[@matrix1171]

What is your opinion of R458A? And have you heard about the positive results for use of co2? Might need to search the internet on that one :-)