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THE AC KEEPS TRIPPING THE BREAKER

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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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Опубликовано:

23 сен 2020

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Комментарии : 885

@stevenmoore4893 2 года назад

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

@HVACRVIDEOS 2 года назад

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

@mattr8128 2 года назад

Lmao what did he do wrong?

@nicolasfritzges4013 2 года назад

@@mattr8128 he has more customers than him

@leoperez8916 2 года назад

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

@Ekaern 2 года назад

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

@Pendrige 3 года назад

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 3 года назад

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 3 года назад

@@pbsocal1 p ppl

@315Habib 3 года назад

That's a proper engineers mind

@bigzup 3 года назад

😀

@bigzup 3 года назад

🙌🏿

@wirelessnet2747 3 года назад

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

@growthgambit9543 3 года назад

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

@stealth473 3 года назад

Love that sound

@ramirezmanuel117 3 года назад

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

@tmst2199 3 года назад

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

@miker252 3 года назад

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 3 года назад

Hell yea Mike you da man!!

@redsnowdue 3 года назад

sierra sands by chance?

@TheSleepyCraftsman 3 года назад

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

@johnghatti5435 3 года назад

Same here in KY. Humidity is so horrible

@RideCamVids 3 года назад

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 3 года назад

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

@barrygrimes3919 2 года назад

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

@lorenzodionlee3988 3 года назад

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!

@Zubatec 3 года назад

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

@jamesmuravska2922 3 года назад

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

@rogerghiardi7723 3 года назад

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 3 года назад

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

@TheCrystalGlow 3 года назад

Actually that’s a great idea

@laskalives 3 года назад

You can also use a long screwdriver the old school way

@joeshearer1247 3 года назад

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

@home541_ 3 года назад

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

@price103599 3 года назад

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

@beezertwelvewashingbeard2519 3 года назад

much yes....i cant wait to move

@evilgoodness1 3 года назад

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

@vieuxacadian9455 3 года назад

C'est ca

@Gmoney1019 3 года назад

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 RU-vid recommends me this video? I work with swimming pool, 🤔

@salv638 10 месяцев назад

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

@ACHVACTAB1 3 года назад

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 .

@Assault_corgi 3 года назад

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

@pcy7931 3 года назад

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 Год назад

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.

@sebastiannielsen 3 года назад

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 3 года назад

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 3 года назад

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

@sebastiannielsen 3 года назад

@@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.

@xerox8080 3 года назад

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

@TaRgEt0ZeRo 3 года назад

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

@tsm688 3 года назад

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 3 года назад

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

@johnnyblaze9217 3 года назад

@@growthgambit9543 😂

@martixagent 3 года назад

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

@lesleytaggart 2 года назад

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 😎

@sbukosky 3 года назад

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 2 года назад

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

@mikeiver 3 года назад

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!

@XJrick303 3 года назад

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?

@ehsnils 3 года назад

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 3 года назад

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

@ilrb1 3 года назад

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 3 года назад

@@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 3 года назад

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 3 года назад

@@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.

@electrickal1 3 года назад

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!!

@I_am_Allan 3 года назад

30 or 40% humidity. *tries to laugh in 93% humidity, but ends up choking on the moisture* HVACR North knows what I'm talkin' about. haha

@mikecoleman1927 3 года назад

Hey, us So Cal boys are used to triple digits multiple months outta the year, but as soon as that humidity jumps, our bodies don’t know what to do xD “WE ARE SWEATING, WHY AREN’T WE COOLING DOWN?!?”

@I_am_Allan 3 года назад

@@mikecoleman1927 Try 95F with oh, I don't know, 70% or 80% humidity. This past summer, I got out of the shower, thought I'd dried, but had to dry a second time... due to humidity. LMAO

@brandonmoreno1752 3 года назад

Although yes high humidity is super horrible with heat, but out here in the west the sun feels like its piercing through your skin like a hot metal rod, trust me you’d prefer humidity.

@MystifierMan 3 года назад

@@mikecoleman1927 San Diego can hit triple digits, but not for multiple months out of the year. That's an exaggeration. It has some of the best weather in the country. The humidity can be above average during summer, but with moderate temps and clear skies for majority of the year.

@ricklee4 3 года назад

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!

@andrewgilbreath1331 3 года назад

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.

@rjeepster8640 3 года назад

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

@GRJCLyon 3 года назад

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 2 года назад

What do you do now

@GRJCLyon 2 года назад

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

@Amitch592 3 года назад

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

@tikterd12345 3 года назад

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 3 года назад

I'd like to see a video on that

@BartSimpson-nr1dy 3 года назад

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!

@jamesortolano3983 2 года назад

" 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.

@TheBrummybear 3 года назад

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 3 года назад

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.

@jamesmuravska2922 3 года назад

#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

@high1voltage1rules 2 года назад

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

@peaceray3500 4 месяца назад

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

@jonathandetrow1077 3 года назад

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 3 года назад

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 3 года назад

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 3 года назад

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

@thevinceberry 3 года назад

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

@frigglebiscuit7484 3 года назад

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

@rjeepster8640 3 года назад

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 3 года назад

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

@Soggstermainia 3 года назад

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. :)

@BenProVids 3 года назад

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%.

@GregoryCain94 3 года назад

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

@yourepicfailure8162 2 года назад

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

@amineessa9573 Год назад

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

@JRam757 3 года назад

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

@Varanox454 3 года назад

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!!

@friedmule5403 3 года назад

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" :-)

@knockitofff 3 года назад

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!

@robertreagan5173 2 года назад

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

@justgonnagetbetter1037 3 года назад

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 3 года назад

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.

@almoncamp Год назад

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!

@j81851 3 года назад

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

@trooperthatsall5250 3 года назад

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

@wberm7708 3 года назад

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

@markbeiser 2 года назад

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 Год назад

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.

@greystripe3737 Год назад

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!!

@AKStorm49 3 года назад

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.

@sharkey086 2 года назад

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

@MrKbsweeney 3 года назад

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

@electriciants7927 3 года назад

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

@mc-sp8zr 3 года назад

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 3 года назад

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

@Naitrino 3 года назад

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 3 года назад

Thanks bud

@growthgambit9543 3 года назад

Certified HVAC Tech here in Cali. This guy knows whats up. Using that meter like a champ. Keep these good vids comin brotha. 114 degrees in the sun smh. Have you ever thought about giving the Hot Side a go? I really like hot side compared to cold side. Rational Ovens are a good challenege.

@throttlebottle5906 3 года назад

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

@TheRealoldcar 2 года назад

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

@gsperanza07 3 года назад

Excellent post, very well explained , I’ve had contactor / relays for compressors with voltage drop , as the pitted contacts on the contactors you’ve shown , cause circuit breakers to trip intermittently and shortly after running from indifference of voltage not balanced ,to the phases supplied , But multiple small issues / faults as mentioned due to house keeping of periodic changing of contactors , which in my business has shown the long serving client , that compressor and related issues of short life are greatly reduced and reliability increased by 65% with reduced call out fees , I’ve taken a huge ‘ leaf ‘ out of your book , by go pro taping my findings and not just showing items / parts where the ‘ life cycle ‘ has ended But showing the initial find as you have shown , e.g the cooling condenser fan relays , and evaporator drive motor, awareness / visual proof , show the client a hell of a lot , ‘Well done, so proud to see a Tech with incredible skills in my field and teaching and showing , sharing as which I do , which is a beyond manners today , your very professional and please keeping posting , there should be an award for Tech’s such as yourself, godbless and keep safe :)

@amadogomez436 3 года назад

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

@jimmycake7143 3 года назад

this guy is a good f in mechanic/tech.

@davehowitt7538 3 года назад

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

@marcelolucas5260 2 года назад

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

@dpwade67 3 года назад

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 3 года назад

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?"

@j81851 3 года назад

From a 36 year electrician and mentor/trainer 76 Amps on 100 A molded case breaker is very marginal. Molded case CB routinely carry a 80% continuous rating, 100% short duty cycle (very short) This unit needs to be running about 65 amps to be happy!

@liam1428 3 года назад

how did u get so excellent? Mentorship? I've been with thew IBEW 37 years and I'm jealous of your training.... We're in good hands with people like you coming up behind us.

@dermotfixter813 3 года назад

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

@CoCoTheGeek1 3 года назад

Anatoly Dyatlov same here I love watching them.

@ehh2681 3 года назад

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

@nathanas64 3 года назад

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

@egbertgroot2737 3 года назад

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

@guygfm4243 3 года назад

If some else came and worked on the unit did not know about the limit switch he or she could put the unit in a dangerous position. In the uk we have to disconnect and cap the gas supply and tag the unit not safe to use. Seem a little scary to me. Thanks for sharing good video as always.

@dannywhite4574 3 года назад

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

@bigzup 3 года назад

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

@georgew.henkel3182 3 года назад

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

@FortErieFireFighter 3 года назад

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

@BossALOMARI 2 года назад

I like the content you provided, I been doing HVAC work for 8 years and mostly commercial, just as I know from experience what installed on the motor shaft called sheave which is you can adjust and pulley not adjustable, I hope that makes sense ,also on Lennox equipment check the cabinet where the the on/off switch at, there is fuses I always check, I'm learning something new everyday 👍🏻, thank you

@OneTrueCat 3 года назад

When I was wrenching on cars, one of the best things I found for pegging bearing noises to an individual bearing was a stethoscope. They make ones with a metal rod probe for people in lines of work like yours and mine. Just touch a solid surface near the suspect part, and it's SO obvious where it's coming from when you find it.

@mrbugenhagen3364 3 года назад

Nice tip, i should invest in one of those. My tip is that you always remove the belt because the tension from it hides the bearing noises. Then spin the fan and motor by hand separately and listen.

@inactive67 3 года назад

wooden dowel on the chin and and on the shaft works too, not as convenient though.

@Karjis 3 года назад

@@inactive67 some old guys just use old screwdriver or a hard wooden stick pressed against the hearing protector, that combination works like a stethoscope. Anything that mechanically transfers the vibrations works, harder material the better.

@GB-ue6wr 3 года назад

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!

@NLoff44 2 года назад

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

@alurbina1837 3 года назад

Bro I miss working on these units, ran into a power poll with my service van been on the sideline for 3 years now with my injuries, managed to get my contractor license but now I’m an alcoholic. Keep doing what you’re doing bro I really like these videos brings back some good memories. Salute from NORCAL

@Jason-wc3fh Год назад

I'll take out the violin.

@evapowah 3 года назад

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.

@HVACRTECH-83 Год назад

Usually when the bearings have plugs instead of zircs it's because it's a sealed bearing and if so, greasing it the way you did does nothing to lube the bearing. Only way to re grease a sealed bearing is to pull motor apart and remove the covers/seals on the bearings then manually repack and put covers back on but at that point, you got motor taken apart, you just put new bearings on. When you replace open bearings with sealed bearings in the field you are supposed to remove the old zircs and put plugs in their place and label the motor so people know it now has sealed bearings.

@gonzalotavares65 3 года назад

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!!

@hvacslayer2929 3 года назад

If the motor doesn’t have any zerk fittings then it’s got sealed/shielded bearings they don’t need to be greased. I’ve broken apart baldor motors that have zerk fittings and inside they were sealed. Had dates when guys were greasing it only to know they were just packing the pouch where the bearing is seating full of grease. Zerk fittings and a relief plug yes you purge out old grease. To each his own but I like knocking out bearings.

@MICUTU511 3 года назад

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

@sherwinalvarez7365 3 года назад

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

@josephverrett1680 3 года назад

I'm a little late to this video, but I once was a kitchen director at a nursing home. I had to get my people to remember to turn on the vent fans over the stove and dishwasher. What a difference it made in the kitchen. Of course in the winter they would forget sometimes to turn the vents off and it would be real cold until start cooking.

@dontes9588 3 года назад

What you call a cheat cord, I had atleast one in each service truck. As an electrician, I added a 15 Amp inline fuse for protection. I didn't see one on your. These days you can get a 2'- 20 Amp cord 1 plug to 3 receptacle with an inline GFCI from Home Deport. Cut the plug off and add the alligator clips w/ inline fuse. Just a Tip.

@aminaleali7290 3 года назад

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.

@matkremzar5474 11 месяцев назад

I found your lost brother ... bobsdecline he's a linesman. like you very thorough!

@williegillie5712 3 года назад

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

@maximolopez8638 2 года назад

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

@chadlevitan7886 2 года назад

Just wanted to point out that at 4:57 or so when you are inspecting the contactors, when the load served by the contactors is something like an A/C compressor, this will cause a condition where the compressor motor will overcurrent like crazy, though like you I am not sure if it would blow a 150A breaker or burn out the motor windings first. However, if the load is something like a heat element or a fan motor, the voltage drop across the burned contactor will just caused reduced temp, reduced motor speed and reduced amp draw as more resistance (adding the resistance of the burned terminals on the contactor to the series circuit) equals reduced amperage. A/C compressors are a special case. Love your videos!