THE AC KEEPS TRIPPING THE BREAKER

The customers complaint was the Ac was not cooling, and I found the breaker was tripped but the problem took a bit to find...
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[@stevenmoore4893]

You are an idiot. I feel sorry for the customers who hire you to work on their equipment. Not being mean

[@HVACRVIDEOS]

I'm always looking to better myself .... how can I improve my troubleshooting skills?

[@mattr8128]

Lmao what did he do wrong?

[@nicolasfritzges4013]

@@mattr8128 he has more customers than him

[@leoperez8916]

@@HVACRVIDEOS this is the best response to something like this

[@Ekaern]

The only idiot here is you, shut up and hopefully you find something else to do, rather than spreading hate, ungrateful idiot.

[@Pendrige]

I don't even know why i watch these videos, i have never and likely will never come in contact with HVACR but watching someone doing such methodical thinking coupled with common sense while taking pride in doing things right is just therapeutic honestly.

[@pbsocal1]

To master this craft takes many years of intestinal fortitude, perseverance, working long and extended hours in harsh and sometimes extreme environments...pride in craftsmanship is kept alive by the many that take the extra time to perform tasks correctly and thoroughly. When wrapping up at day's end, knowing that breathing the life into the equipment, it will run for a long time...no callbacks make the most $$

[@tikbugzz152]

@@pbsocal1 p ppl

[@315Habib]

That's a proper engineers mind

[@bigzup]

😀

[@bigzup]

🙌🏿

[@wirelessnet2747]

No one commenting about how satisfying it is to watch four compressors kick on at 6:23 =P

[@growthgambit9543]

Right 4 scrolls pull down to 80 amps, pretty dope!!

[@stealth473]

Love that sound

[@ramirezmanuel117]

Commercial refrigeration guy here, I love hearing my compressors purr.

[@tmst2199]

The wonder of the induction motor continues to be largely unappreciated.

[@miker252]

Why I can't stop watching these? I'm a retiered HVAC mechanic from a desert school district and we had hundreds of the different units you always working on. It brings back memories and I find myself saying stuff like "check the control wire in the outside air damper harness for short circuits." or " Those 's a Emersion compressors get pin hole leaks where the case is spot welded." That one contactor looked like it might have single phased.

[@growthgambit9543]

Hell yea Mike you da man!!

[@redsnowdue]

sierra sands by chance?

[@TheSleepyCraftsman]

30% or 40% humidity is a bone dry day here in Florida. 🤣

[@johnghatti5435]

Same here in KY. Humidity is so horrible

[@RideCamVids]

If you are dying at 30% humidity, god help you at 80% or higher. Don't ever go to the tropics, you will melt.

[@timijs100]

UK 40% is normal lol Dry is rare in here haha

[@barrygrimes3919]

Down south Alabama way we refer to humidity as "air you can wear"

[@Zubatec]

Its always pleasure to watch a professional do his job, no matter the type of the job.. From Czech Republic with love 🙋‍♂️

[@lorenzodionlee3988]

Its great how you added the "CAUTION"/disclaimer on bypassing the limit safety control. I was laughing my ass off! Its important to make it clear that during diagnostics you have to make some educated decisions in order to find exactly what all could be causing the customers issues. Good job!

[@jamesmuravska2922]

Be safe bro, and my previous question was answered . cali... hot. very hot. Keep hydrated.

[@price103599]

your humidity would be welcome here in Louisiana, it is currently 98%

[@beezertwelvewashingbeard2519]

much yes....i cant wait to move

[@evilgoodness1]

it was 120 a mnonth ago, today its 37 in breaux bridge....lol.

[@vieuxacadian9455]

C'est ca

[@Gmoney1019]

30 or 40% humidity? That’s like Mojave dessert dry around here. I don’t remember seeing 40% , average year round is 82, but hey we’re in the Caribbean! Now switching the subject, why KZbin recommends me this video? I work with swimming pool, 🤔

[@salv638]

I’m a 16 year service tech from NYC and moved to Moorpark California and been working out here since last year and ur videos are very helpful!!!!! Keep ‘‘em coming

[@rogerghiardi7723]

I have a automotive stethoscope i keep in my van it has a rod on the end which isolates the area you put it on and you can identify bad bearings and listen to different areas of a running compressor. Helps sometimes with funky diagnostic issues.

[@aaronsmith5433]

I have one too, essential ! Dials it right in, no mistakes due to resonance, etc..

[@TheCrystalGlow]

Actually that’s a great idea

[@laskalives]

You can also use a long screwdriver the old school way

[@joeshearer1247]

laskalives yep long screwdriver and make a megaphone from an old gallon jug to really amplify it

[@home541_]

@@laskalives I'm a mechanic and did that. Until I covered my ear with grease lol

[@ACHVACTAB1]

FYI: 1-Turn on that Vp Sheave = 5% Airflow change. FYI: It's Likely the Dining unit Cooling draws into the Kitchen and when it's Not Cooling the Kitchen gets warmer which may suggest the Kitchen unit alone is possibly undersize for tonnage .

[@xerox8080]

I never knew a simple AC unit could be so complicated, all these wires and circuit boards OMG....

[@TaRgEt0ZeRo]

actually when you study it, it's not that bad

[@tsm688]

Looks like a r eally well organized unit at least. Plenty of room and labels. Some "home made" stuff, it'll take days just to figure out what the wires are

[@growthgambit9543]

Simple and A/C don't usually go in the same sentence. If it was easy girls would be doing it

[@johnnyblaze9217]

@@growthgambit9543 😂

[@martixagent]

It looks like any electrical cabinet. As long as you have an understanding of how it works, they're all about the same thing

[@mikeiver]

Being a service electrician i am on occasion called in to troubleshoot the odd RTU with just the sort of issues you highlight. It is fantastic to watch a fellow tradesperson on top of their game do a thorough job and get a unit like this fixed properly. I may have to deal with them once or three times a year at most but I still learned something from your video for use next time. The adjustment of the pully on the internal blower for lower current to match the rating I might have missed or simply let go since it was within 10% of the plate rating. Not anymore thanks to this video. Will done sir!

[@high1voltage1rules]

Loving the relays clicking one by one. So AWESOME 😎👍🏻

[@rjeepster8640]

Are used to carry 10 to 15 of those ice cube relays in my van anytime they start looking smoky out they would go. I love your videos man excellent job

[@lesleytaggart]

I learn alot watching your vids.. the ideas an train of thought are super helpful. I'm a split shop. (Elec/hvac). We never stop learning.. with that said. The comments are just as useful.. thank you all... and stay cool 😎

[@Assault_corgi]

Hey bud. I lost your channel for like 8 months and got super sad as I loved watching your videos. Im not a hvac mech I'm actually a peace officer. But I love watching your vids on problem solving. Thank God I found ya again

[@ricklee4]

You are even voicing your thought process as you troubleshoot, amazing, great learning tools! Retired now but once the 300 ton chiller just shut down, luckily its microprocessor recorded the incident because the other facilities guy was not about to tell me he shut off the cooling tower water supply and failed to turn it back on!

[@pcy7931]

A lot of RESPECT for this guy! To be able to think and troubleshoot all of these issues under that kind of heat!

[@Jason-wc3fh]

Yeah, and complaining about it while mentioning he's wearing two shirts, and one of them being a long sleeve... If I walk around with my winter coat on in a hot summer day, I'll probably want to complain about the heat also.

[@XJrick303]

I really enjoy watching your videos. You truly have a gift of teaching. Your videos are great because you talk through them instead of filling them with music or dead silence, I especially appreciate how you explain so many fundamentals and your process of troubleshooting. Your humbleness to point out your not perfect you make mistakes and the importance of customer service. If I was younger and still lived in California I’d be submitting my resume and would have loved to join your team. Do you ever use laser alignment for shives and pulleys?

[@Syntog]

*laughs in year round 90%+ humidity*

[@chrisagu28]

You must live in guam like me! Lol

[@James_Bowie]

You're welcome to it. That's reptilian climate.

[@johnathandobler9678]

It felt like Fall yesterday in Central Florida. Humidity was below 75%, haha

[@FrostBlueFire]

Florida techs rise up 😂😂

[@kylegoff9612]

Midwest ) In Indiana humidity only goes down in the winter to about 60%

[@electrickal1]

Great fault finding and diagnosis. This is the shit I have to do everyday too, but everyday is different and its not a bad way to earn beer tokens really. That kitchen would have been getting thermal loading from the dining room AC being offline, the kitchen canopy was drawing hot air from the dining room, making the kitchen system work twice as hard which it was never designed to do and was unable to cope. You guys did a great job with a good outcome, hope they gave you a free meal for your efforts!!

[@Amitch592]

Thank you so much for making videos for guys dealing with bigger systems than 2 ton splits lol. So glad I found your channel

[@jamesortolano3983]

" dont be that guy". Great line heard it so many times in the past. It's a true statement be a responsible mechanic. 107°hurts in the beginning of summer here,but by the end of summer I'm so dehydrated I cant tell what the temp is. Ha, yeah I still enjoy it. 50+ years young. Doing a methodical approach is definitely a sign of experience. Hope younger guys get this video. Well done . Appreciate your time nd effort in all the editing.

[@ehsnils]

A 3-phase system out of balance can also trip a breaker even if the total load is OK the load on a single phase can be too high and cause it to trip. It's worth to check the current on each phase to make sure that they are all below the limit of the breaker. Get a box with assorted zerks so you don't have to move them around. For that environment it's not really critical with type of grease. Special grease is when you run equipment in wet environment or really high temp situations. If the kitchen gets hot for no reason at random and the unit is OK then my guess would be that either someone messed with the thermostat, the thermostat is starting to get bad or the wiring to it is quirky. But that's just an assumption, it can be just about anything and unless being there it's impossible to know what's up.

[@patrickgijzen5567]

Correct. Thats why Balance the loads over 3 phase is important

[@ilrb1]

The only question I had was, if you mix different types of grease that was previously used can’t it have a bad effect on bearings?

[@joehead1294]

@@ilrb1 Depends. You would need to know the original type of grease, and the new grease. Then consult a compatability chart or magic 8-ball.

[@ilrb1]

joe head ok so that’s my question, the only reason I ask it because I consider myself still some what Green and everyone at my water distribution plant tells me to not mix different types of grease because it will prematurely wear bearings, again I’m still green so take it easy on me lol..

[@ehsnils]

@@ilrb1 Usually it's not a problem, it's only if you mix silicone based with carbon based lubricants that you might get into some trouble because they don't mix. But normal grease is all carbon based and can mix. It's only when there's a special application where the wrong grease might melt due to high temp or absorb water it could be a real problem. Grease is designed to stick around in a bearing for some time.

[@sbukosky]

The only exception I take is when you backed off on the sheave to reduce the amperage of the blower motor. It would have been better to check the RPM of the blower wheel with a tachometer before changing the motor, rather than the appearance of the sheave. We usually don't have that luxury when changing a motor. That would give you an exact point of reference. Next would be noting what the power factor of the motor is. You can exceed the RLA up to the percentage of the power factor. One minor point too, the belt tension should be done using deflection specification. Yes, I know belts stretch, but you did make another trip there to replace the limit. Which by the way, has that third terminal that when tripped, will shunt 24VAC to the fan contactor. That's pretty common.

[@penielj.martinez8434]

One thing that you have to Remember this guy was dealing with not only one problem but multiple ones can you have the heat humidity hitting you I know something He had to come back to repair the limit issueBut at least he did it compared to so many other mechanics that I know that will just By pass It

[@BartSimpson-nr1dy]

I’ve retired from this kind of roof top work. I must say you are well versed and most thorough. I would hire you in a second to maintain my units. You also make a very steady video. Great job!

[@peaceray3500]

that was very helpful, great diagnostic and repairs and also putting time to film it in that hot day, thanks

[@tikterd12345]

My mentor with 30 years experience taught me how to replace bearings on motors like this, if youre in a pinch and theres a bearing store nearby and the windings test fine. i usually have a few odd sized bearings in my big bits box for the occasional rural repair

[@ramirezmanuel117]

I'd like to see a video on that

[@rjeepster8640]

When I was field supervisor we had almost 300 stores they had between 4 to 12 Lennox units on the roof. I love those units brings back lots of memories. Are used to have all the carmax too They’ll have Lennox units with all the bells and whistle’s I can’t tell you how many MR2 boards I have replaced because they had a big recall

[@dyung0007]

I work in a senior living area watching your videos is a great thing like to have one fo your work shirt.

[@TheBrummybear]

Always a pleasure to watch a guy who takes care over what he dose. I've repaired washing machines both domestic and commercial. Here in the UK. commercial motors single and three phase are returned to the store and you are given a credit note for in the store for them. Then they are sent to be refurbished. Then when you go to buy a motor you can buy new or refurbished and you can use the credit note to buy either. Do you have something similar there? .

[@44R0Ndin]

Over here in the auto parts industry we have something similar, but it kinda works in reverse. It's called "core charge", and it acts like a discount applied directly to the cost of the new part (for certain parts). For example, if you buy a starter motor, they'll charge you for two things, the starter motor, and the core charge. Give them back the old non-functional starter motor and you get back the core charge. Core charge is basically them saying "Hey we really want the old one back, if you have one". Of course you gotta eat the core charge if you're assembling a new motor from parts, or the motor is from a pick-and-pull and therefore the starter might be missing.

[@andrewgilbreath1331]

My thoughts on both systems. On the tripped breaker, breakers are designed to only handle max loads for a short period and are made to run 75 or 80% of max continuously. So running high loads for extended time would definitely cause it to trip. On the kitchen ac when the dinning room ac went down you overloaded the kitchen ac therefore causing high load on the kitchen ac even if the two are closed off the amount of foot traffic from one to the other will carry the heat around and with the kitchen being to main heat source in a restaurant it will over load it and not allow it to keep up. You even often talk about how important balance is in those situations. Keep up the good work man great videos.

[@Soggstermainia]

I work as a tech on the road fixing photocopiers and its so... familiar... watching your videos, how you deal with don't ever bypass safeties, diagnose things by ear and have to deal with replacing parts/working on stuff that's remote (some jobs for me may be 3 or more hours away). Thanks for sharing your work, processes and your industry. :)

[@GRJCLyon]

I used to do this for a living and I learned a few things watching this video. This is the best damn troubleshooting video I've seen by far. Well done. I applaud your skill and knowledge. I actually almost miss doing it now. That's how much I enjoyed the video.

[@sloppyjonuts9162]

What do you do now

[@GRJCLyon]

@@sloppyjonuts9162 I am currently prototyping, testing and manufacturing for the Govt.

[@jamesmuravska2922]

#4 contactor needs replaced, but thank you for your excellent troubleshooting. I am a journeyman electrician, but electronics tech before. and you did freaking great bro. I enjoy your hunt and your thinking. Capacitors are notorious on Hvac, I know. they get heavy use every time those compressors and motors start up. but. I cant wait to see what you find as the root cause! Excellent video, I love it when someone like you run the course. :D

[@electriciants7927]

Nothing like watching this on a thirsty Thursday evening. Nice work... The motor sounds cool on start up as do the 4 compressors.

[@friedmule5403]

Your great video perfectly shows why being an electrician can be an amazing job. :-) The whole detective job, searching for clues, deduce and eliminate every single problem, "chapter for chapter" until the "guilty is found" :-)

[@sebastiannielsen]

also another thing to take in consideration is that breakers "wear out" with time, and they are designed to wear out such as so they sensitivity becomes higher, ergo trips at a lower current. Those breakers look VERY old and worn out, maybe so worn they even trip at like 75 amps instead of 100. They can also be more sensitive to short-timed overcurrents, where a fresh breaker might tolerate a heavy motor starting up and just overcurrenting for a second or two, while a worn out breaker might be more susceptible for a trip. (there are different classes of breakers, like A, B, C and so on where A trips faster than C. For heavy things you use D class of breakers). Would suggest replacing that WHOLE PANEL with something more fresh.

[@HighestRank]

Yeah so just let the capacitors dwindle down to nothing and blame all the wiring when it all overheats in that easybake-oven. He spoke of the pitted contactors. Bad breakers don’t cause those.

[@bobwelemin1770]

Bad breakers or loose wiring at the breakers will cause pitted contactors, it is called low voltage.

[@sebastiannielsen]

@@HighestRank Correct. But another thing that can cause those pitted contactors is falsetripped breakers that have to be reset all the time again so it causes high starting currents (inrush current). So even if the problem with the capacitors are fixed, the breakers should really be replaced as preventative maintenace. Because look like this - it might even be that the capacitors wasn't bad from the beginning, but the breaker tripped so often so the capacitors prematurely weared out. Thus the bad breaker caused bad capacitors, not the other way around. Since, when the breaker trips, the transformer powering the contactors (lov voltage control signal) will also lose power, meaning the contactors break during high current load, causing pitting. Ideally, contactors should break as close as possible to the zero passthrough, or when there is less load, to avoid contact pitting.

[@dermotfixter813]

Man I have no knowledge in these systems but these videos are super fun

[@CoCoTheGeek1]

Anatoly Dyatlov same here I love watching them.

[@j81851]

And additionally I must compliment the tech for his great diagnostic skills!

[@sherwinalvarez7365]

This was a great video. Its like an HVACR movie.

[@Varanox454]

I'm new to this industry, and work mostly with Geothermal, but this single video has taught me 5 different things I can use at work to make me better and more efficient. Thanks for putting this out!!

[@wberm7708]

Why was I recommended this video I don't know but what's a mystery is why I click on it and watch the whole video even though I didn't understand anything except bad bearing, bad motor, no grease and to much current. everything else. flew over my head. still I enjoyed it

[@BenProVids]

You got it good, here in tennessee we've hit 100% humidity at 103°F within the last year. I'd give anything for 30%.

[@amadogomez436]

I want to thank you for letting us see your work.

[@MrKbsweeney]

I know nothing about the work you do but I’m surprisingly engaged in this video. Subscribed!

[@amineessa9573]

that was very instructive intuition, common sense and acute sensorials is everything in this job.

[@knockitofff]

Hey Chris, saw Nylog blue at United a few weeks ago and grabbed a bottle, replaced a 30 ton semi hermetic on a York RTU (the U stands for unit, LOL) this week and used it on all the fittings and the new unloader gasket was leaking upon pressure test. Applied a thing ring of Nylog around both sides, reinstalled it and bam, leak gone! Love this stuff and not a drop of blue death on any of my clothes LOL, thanks again!

[@almoncamp]

Thanks that was cool to watch. Am training on commercial units with a friend who is helping me learn. Your videos are a big help thanks!

[@FortErieFireFighter]

Very thorough, Great explanation good work !! You can only do what they want you to, as work goes !!

[@nathanas64]

Excellent problem solving techniques. This guy would have also made a great computer programmer. Very methodical

[@GregoryCain94]

Well damn I wish all heat and air guys were this honest detailed and just damn right good!!!!

[@AKStorm49]

When you find a breaker tripped, especially that big, check for shorts from phase to phase. I've been flashed twice on a 480 oven because I didn't check it. Usually, it's violent enough to find by visual inspection but not always.

[@MICUTU511]

When he said don't be that guy and clean on the excess grease I instantly like and sub.

[@bigzup]

This guy is awesome ive learn so much in one week watching his videos . hia communication is impeccable

[@mc-sp8zr]

Man I remember in my first year working on these Lennox units: I replaced a few limit switches, adjusted some motors, and even replaced one of those big gold ones - WITHOUT ANY CLUE THAT YOU COULD PULL THAT SLED OUT. If only we could go back in time and coach ourselves through our first year... 10 years goes fast!

[@HVACRVIDEOS]

Yeah it took me a long time too, I remember leaning over the blower to grease the back bearing

[@TheNemosdaddy]

He enjoys polishing his shift to get the pulley off easier. 🤣🤣🤣

[@jonathandetrow1077]

My family had an old AC that was tripping the breaker every now and then. We had a tech come out to check it 3 times before the AC did it again right there in front of the last guy. He found a dry-rotted power cable to the compressor, still not sure how the previous two never saw that, which had also effectively destroyed the compressor's power input, and the unit was old enough finding a replacement was no longer possible. Had to wait two weeks before we found someone who wasn't trying to price gouge us on a new unit. Yeah, we'll put up with the Texas heat, no need to blow the bank for air conditioning, they're called windows and box fans. Curiously the tech actually told us that that kind of damage normally causes the refrigerant to vent, although ours didn't thankfully. Additionally, the two window units we borrowed from a friend to make do with actually used less power together than that old unit had been using. Love these videos, keep 'em coming, Cheers!

[@aaronsmith5433]

I'm of the same Jack Benny mindset. Window units work wonders. My electric bill is much lower than my neighbors with newer McMansions running big systems. I have two small window units but often get by with just one. If it gets bad I put a 30 year old little plastic suitcase style Sears Kenmore in the bedroom window. It has tinsel like flare wrapped all around the evaporator quadrupling the surface area so it really suck a lot of water out of the air. Quite a unique feature , I wonder why it's not developed and used more often.

[@kenb1918]

Aaron Smith that’s a old GE carry cool. They are good units. My whole house is cooled by window units 1970’s and older. It can be 95 and 70% humidity out side and it’ll be 70 inside comfortable as hell. Can’t beat the old units

[@jamiearellano8903]

I do residential and comercial service call in Houston,Tx thanks too this guy learning a lot of * second experience *

[@thevinceberry]

Man...Texas summer heat cannot be beat with box fan and open windows unless you live in north texas maybe

[@frigglebiscuit7484]

@@thevinceberry sure it can. if i can survive in south alabama, they can.

[@dpwade67]

I like the format of multiple visits in the same viewing. Better flow for sure. Same here about pool motors. Customer can definitely hear it a horror squealing super loud. Motor replacement sells it self, so friggin noisy compared to normal operation. Rebuild motors only if it’s a hobby lol.

[@44R0Ndin]

It's getting more and more rare, but there used to be shops you could send a motor to for a day or so and get all the bearings replaced, along with any centrifugal switches and start/run capacitors if it is a single phase motor with a start winding. If the winding's burnt out tho, that takes longer to fix, but there are shops that will fix that too if the motor is big enough (start thinking like 50hp+ for the re-winding). But in HVACR turn-around times are often critical so the re-built option just doesn't make sense from the point of "how much time is the unit going to be down for?"

[@egbertgroot2737]

Respect for being able to work in those temperatures!!!!!!! Man .. i am wrecked at 30 degrees celcius already .....

[@davehowitt7538]

Painting exterior piping is code here in Canada. Those pipes, especially that gas pipe, really could benefit from some rust paint.

[@marcelolucas5260]

Rust paint actually does nothing, you have to remove the rust to get rid of it, wich is innapropriate in this cause u could cause a leak on the process, so yeah there isnt much u could do about that

[@trooperthatsall5250]

Just watched this, not an Aircon guy, but I found this so relaxing from start to finish. I am an Engineer use to be a mechanical/electrical side of things. For the alignment of belts I use to use a laser pointer attached to a magnet, when one of the guys who was working with me noticed what I was doing with it was impressed enough to go an buy a few and keep them in his belt. Many thanks I gonna subscribe - your relaxed attitude and commentary magic. Trooper

[@dannywhite4574]

This is a great video! A good showing of having an open mind and assuming nothing.

[@Naitrino]

Why can't i stop watching videos from this dude on sunday night after working for whole day on my store and beeing in the other side of the earth wich means i will never ever call him? I suppose his videos is so cool to watch :)

[@HVACRVIDEOS]

Thanks bud

[@notathome13]

when you get to 70% humidity for 3 months straight then you know you are doing it hard! but welcome to tropics in the southern hemisphere!

[@GB-ue6wr]

Great catch on the limit switch. Safety so the unit doesn’t over heat.. “I’m generally a lazy person” as you are killing it out there!

[@Chris-vc6bn]

Your videos are great to watch you don’t miss a trick and the quality of your fault finding is outstanding nice Job 👍

[@sharkey086]

I knew these units were complex, but never like this. New found respect for HVAC.

[@georgew.henkel3182]

Watching the video you can see the motor bind. Plus hear it. Good Catch.

[@jaybrown7088]

I really enjoy watching your videos. Thanks for sharing.

[@yourepicfailure8162]

I'd hate to say it, but honestly I love the vibes when a sequence of condensors turn on one after another. Good vibes.

[@ehh2681]

South Mississippi, I believe it said 96% humidity this morning. I might as well be a fish.

[@JamesSucksAtGames]

I imagine the kitchen AC is just the same as someone complaining that their AC isn't working, but also just spent an entire day baking. It's gonna be hot, and it will occasionally throw off your system, that's just the nature of how it works, unfortunately.

[@russellhltn1396]

Listen to the customer, but don't believe everything they say.

[@archangel3237]

That c11 startup reminds me of a barbershop quartet starting to sing

[@throttlebottle5906]

set the blower shaft sheave first, making sure the motor sheave has leeway in either direction to tweak it enough to make up for the blower side taper movement. it's the easiest to change alignment at motor, since they're general setscrew and keyway!. (which is what you did of course) it's easy for people to miss and try and shortcut the other way, which ends up a rework long-cut

[@maximolopez8638]

thank you so much for your videos. I can’t say how grateful I am to learn from you.

[@gonzalotavares65]

I hope to get to your level of knowledge someday. Ive been doing hvac for 3 years now. Mostly resi and light commercial. Love watching your videos sir!!

[@aky19832001]

This was incredible to watch. I learned a lot.

[@evapowah]

In the process of failing with "capacitance under tolerance" (parts internally fused!) a capacitor can trip a breaker, particularly "across the line" film/foil/paper/oil capacitors.

[@LionelLiftsVegas]

Another great video!!! Keeps me motivated to stay thorough and check everything in the unit to avoid call backs!!

[@JRam757]

back in January I had just gotten out of Trade School full-time (for Electrical no less) and I'd watch your videos out of curiosity. Never envisioned myself in the restaurant business at all. I don't know if it was sheer coincidence but now I'm servicing A/Cs at 6 different McDonald's restaurants

[@NLoff44]

OK I feel better I'm sitting here watching while you're talking about taking off the motor pulley then you start sanding the motor pulley shaft and I just keep yelling at the screen but why you have a new motor keyway and pulley! Then you realized it it was such a relief lol

[@williegillie5712]

Great video, I’m glad you are thorough with your testing cause like you said “ who wants to come back”

[@aminaleali7290]

It might be a good idea to put a shade covering over the units in such high heat area to 1) increase their efficiency and 2) reduce wear and tear from extreme temperature changes.

[@AIC_onyt]

6:37 the relais kicking in sounds badass in a way

[@mfertig]

I really appreciate your videos and this one was particularly informative and interesting - particularly the detail you provided on resetting and tightening the pulleys. Thank you!

[@hvacexplained9341]

I swear I run into rookie mistakes dozens of times per year. It’s a shame that common sense isn’t so common today LOL. I like the video by the way! 👏👏🇺🇸🇺🇸

[@picturemetrollin2093]

You are one of the best service technicians I’ve ever seen.

[@davoinshowerhandle3302]

Every time you open up those belt driven blower motor your remind me of my coleague who stuck his pointing finger in the pulley and got caught in the belt while it was running luckily it just ripped of some skin and not the whole finger.

[@greystripe3737]

Hey man, I have been watching your videos ever since I woke up to one on autoplay at 3 AM. Something about this is soothing for some reason. Kinda weird, i know. I love watching how you troubleshoot things and have learned a lot of troubleshooting skills from you even though I have done 0 hvac work in my life. Keep up the good work!!

[@TheRealoldcar]

Super great video! Lots of details and good tips…. In case the burners don’t turn off or there is a related issue that trips the limits, the blower is turned on as a safety measure to prevent the heat exchanger from over heating and in hopes that the occupants with notice a constant heated air flow and place an urgent service call.. My biggest fear which I hope no system ever encounters is when the control board goes bad during a stuck open gas valve

[@markbeiser]

Having flashbacks to the late 90s when I was driving all over north Texas doing startup commissioning check lists on those units on new retail buildings. The buildings were already in use, and the installing contractor had already turned them on and walked away. Was not uncommon to find units that were phased wrong, where they changed the blower wiring instead the supply to the unit, so one or more compressors were dead. Found a couple of times when 240V units were used with a 480V supply, so there were a number of spectacularly failed components inside the units nobody bothered to report. Rooftop full of gas heat units, with a beautiful gas supply system, but no gas supply to the building, or even within 1/4 mile of the building. "Fun" times...

[@petershepherd6889]

When I was doing HVAC in southern Ireland one of our customers had a load of portakabins with packaged a/c units fitted on them to cool the kabins. The compressor was a three phase scroll type and unfortunately the installation engineers just connected the supply and turned them on. Their was a fifty percent chance of the rotation being correct and I spent a lot of time replacing seized compressors.

[@jimmycake7143]

this guy is a good f in mechanic/tech.

[@robertreagan5173]

Excellent Technician Great Job .. Price to customer is important . Retired now .. Best thing is the towel on the head in sun to protect your body . I had a 25 story building and a TV station. We had a news studio with a undersized cooling coil with building control program . So we cooled the studio for the Talent by making a program that dropped chilled water to 28 degrees for newscast and ran glycol in the cooling water . You get the air colder and you always get another challenge as the Cold air dropped like lead weights in the studio .. But talent was cool and then program brings water temp back to set point at the end of news . worked great 5 years till we got a budget for bigger coil. Loved this repair

[@DJRobbie54]

This is my first time seeing your video, Great job Well done. I love watching people Who KNOW what there DOING. I will Subscribe.

[@justgonnagetbetter1037]

I know you mentioned it at the end. So you don't have motor rebuilders local? Last heating circulating motor I replaced was 800, to have the old one rebuilt as a spare 100. Commercial washer motor was 1200, rush job two day turnaround bearing and rebuild 130. I know it's not exactly conducive to getting something running right then, but when the circumstances allow it, it can be a substantial savings. At least around here. Great video!

[@talleyz]

That's a fair question. I think the main issue (in my experience) is that someone has to pay for the time it takes to get that old motor removed, to the rebuilder, then brought back to the work site and installed. When contractors are billing $100+ dollars an hour, that money adds up quick. Add to that the possible downtime waiting for the rebuild (as you mentioned) and the potential liability issues if something goes badly wrong with that rebuilt motor, and it's usually the best option to just get a new motor. Having said that, there are several shops close to me that I have had to utilize for random odd jobs when an OEM replacement was unavailable.

[@high1voltage1rules]

Loving this video mate. Love AIRCON UNITS. VERY INTERESTING VIDEO. KEEP EM COMING thanks for sharing 👍🏻😉 👍🏻👍🏻👍🏻👍🏻👍🏻THUMBS UP👍🏻👍🏻👍🏻👍🏻👍🏻 Anthony, derby, United Kingdom

[@johnkennedy3178]

There is a big difference in grease requirements for electric motors especially for motors on a vfd. VFD motors require a dielectric grease. Bearings with get pitted otherwise.