Ah, it's time to chill out and get ready for a mediocre q, a live stream if you're old enough grab yourself your favorite adult beverage and if you're not stick with apple juice, put your feet up and relax. If you have any questions, feel free to ask them in the chat and now, let's queue up the intro music, hello, my viewers, anybody know what that's from come on. That's old school youtube right there, dr zarkloff used to always start dr z. I used to watch a bunch of that guy's videos.

Hopefully you guys are doing well out there, i'm doing pretty good over here. Hopefully you guys can hear me. Okay, um, as usual, got a couple things i want to talk about, and then i want to get to your guys's questions too. So, if you guys do have questions, uh put them in the chat, do me a favor and put them in caps lock.

So that way, uh it helps me to see them a little bit better. You know. Sometimes these live streams, have a lot of viewers and a lot of questions going on. So it can be a little difficult to uh to um.

You know keep up with it. All and stuff so and also don't feel bad. If i miss your question, if it seems like i'm, avoiding it oftentimes, i just don't see it or whatever, but you can feel free to send me an email to hvacrvideos gmail.com. If i miss your question and we'll try to get it on the next one too, so things are picking up a little bit here in southern california.

The workload is definitely starting to increase we're getting a lot more service calls and uh. You know it's good. It's cool: it's it's a little frustrating um, because just how it's all hitting the fan at once. You know - and i know that the first real heat wave that we get like we've already hit 100, but that's not really a heat wave for us when we hit about 110 115 that'll be the start of our first heat waves and uh.

Just you know everything's going to hit the fan and it's going to go crazy. So, but you know it's a little frustrating just because uh we're starting to see a lot of service calls and like, for instance, i have a. I had a service technician, uh that wanted to take some of the service calls this week, and so he was doing them and, like some of the you know, a lot of the calls that he was getting was you know, ice machine not working because it was Mother's day right so he goes out there and it's dirty another ice machine service call. It was dirty.

You know it's just like everything's dirty because they haven't got back into their routine preventative maintenance programs. Yet so it's just going to take a while and we're going to get a lot of these crazy service calls, which is unfortunate because you no longer get a service call where you go out there and oh, we just got to change a sensor and move on You know it's, this machine is so dirty. I can't guarantee anything until i spend four to six hours. Cleaning it and then i'll spend two hours diagnosing to find out x is bad, or why is bad? You know, and that's just what's gon na happen.

As time goes on, you know um. It is what it is, it's kind of a bummer, but you know the customers. I get why they stopped their preventative maintenance programs. It was just gon na take some some time to.

You know, build up some cash and stuff. You know everybody's just basically in survival mode for the longest time so yeah. It is what it is we're just along for the ride um. But i will say you know: i've been a little bit more f um up front with the service calls like, for instance, just before the live stream started, um one of my customers.

They had sent a service service call through they used like an online dispatching service. So they sent a service call through earlier today saying they had an ice machine down. Okay, i saw the service call no big deal well 10 minutes ago. They changed the priority to emergency.

You know like oh, they want it now and it's like it's an ice machine. No, i'm not going to prioritize an ice machine like it's one thing: if i've got nothing going on, but i'm not going to bend over backwards for an ice machine service call, they can simply order ice now. Yes, they don't want to spend the money, but i'm not going to do that. You know it'd be one thing if it was a walk-in freezer, an exhaust fan, something that would shut down the restaurant.

Of course, i would be there in a heartbeat um, and you know my service technician went and did ice machine service calls this last week, and i wasn't saying no to all the ice machine service calls. I'm just saying at the end of today. You know i'm not going to bend over backwards and stop my live stream to go. Do an ice machine call! No! It's not going to happen.

You know they can wait on that kind of stuff. So it becomes a little bit difficult because you don't want to piss off the customers. You don't want to make them angry, but at the same time you have to be able to have a normal life. You know and uh outside of a real emergency service.

Call. You got ta know when to say no and like hey, no, we can be out there tomorrow. You know that kind of stuff, at least that's the way that i run it. I could be completely wrong in the way that i'm doing it.

Um trust me in the past. I said yes to everything and i've been getting better at saying no to certain things and not you know prioritizing all these restaurants over my family, i've been trying to step back a little bit and spend a little bit more time at home. That kind of stuff. You know, because i'm realizing that it's not just about money, because my sanity is really important too, and if i'm just working working working yeah, i'm making great money, but it gets tiring over time.

You know so hello to everybody. That's in here. I really appreciate you. Um for coming in all right, uh, i'm gon na get this off real quick.

If you guys haven't already, please consider checking out my website hvacrvideos.com. If you like anything, you see those are great ways to support the channel with hat purchases: shirt purchases, sweaters beanies. All that good stuff feel free to check it out. Okay, so i got a couple things i want to cover, but i first want to start off by talking about my two recent videos: okay, real simple: i had two air conditioning service call videos this last week.

The first one was the office. Ac was not cooling. That was the one where the blower assembly blew up um. That was kind of took me.

You know gave me a month, or you know kind of twisted me up a little bit because i went down a rabbit hole following diagnosis. You know i wasn't incorrect, but i missed something really obvious. You know - and you guys saw if you watched the video, if not go, check it out um. The second video that i released this last week was the kitchen ac is not cooling, and that was a heat pump unit and that one, i kind of suspected that you know we had maybe an overcharge or maybe a dirty condenser.

Well, maybe an overcharge you know but come to find out. It was simply just a dirty condenser, so um when it comes to some of these acs. You have to remember the basic sequence of operation. Now, i'm really comfortable with the carrier package.

Units, okay - and i know that you can't necessarily always use the vital signs, for instance the carrier package units. They have a discharge line service port. They do not have a liquid line service port and there's a pretty big pressure drop across that condenser. So the sub cooling number can be skewed.

If you rely just on the subcoin, you would always think that those units are overcharged, because you know it would show really high sub coiling every single time. So you have to know that stuff. When you go in there to diagnose this equipment, you have to understand the sequence of operation and you know how the systems operate. So in that situation i was a little reluctant to say that it was just an overcharge.

I wanted to come back. Do a thorough cleaning on the condenser recover the charge and come to find out. The unit was actually under charged. Okay, so it's interesting how it could look like an overcharge, but it ended up being an under charge.

It's interesting! You know what happens when you actually just recover the charge and start from scratch. Um with that being said, i wanted to go ahead and cover this question that i had and let's see, um who asked it. Josh had asked me about recovering the charge out of an air conditioner refrigerator anything like that, and he was saying with the prices of r22. What are my thoughts on recovering the refrigerant? Am i going to reuse that refrigerant, or am i always going to sell them new refrigerant and the answer is it really depends on the situation if i go up to a system, especially if it's a single component refrigerant, like r22, okay, there's not going to be Fractionation issues you know you're not going to leak out this much of the vapor, whatever okay with r22, so long as i don't see or suspect any contamination issues, then typically, i'm gon na reuse, the refrigerant okay um, to try to save the customer a couple bucks.

So, in the situation of the recent heat pump that i was working on, i went ahead and recovered the refrigerant out of both circuits and i ended up finding out that um. The first stage was a little bit low and i only charged them for the three or four pounds of new refrigerant that i used to top off the charge. I had enough to weigh in the factory charge on the second stage. You know in the remainder on that first stage, so whenever possible, i try to reuse the refrigerant for sure.

Okay, try to save the money as much as possible. R22 is expensive, but it's not just about r22, it's majority of any refrigerants now, if for the slightest reason, i think there's any sort of contamination i'm going to sell them new refrigerant, i'm not going to try to to to play that game now. Uh. In your question, josh, you had also asked me: does the customer have an option in that matter, or do i just sell them one or the other um? You know it depends if there's a contamination issue, i'm not even going to give them an option.

My quote is going to be for new refrigerant plain and simple. Okay, you know. If the customer asks me why i'm selling a new refrigerant, then of course i'm going to explain everything and i'm going to give them my opinion and go from there. Okay.

So, that's typically how i address a recovered refrigerant. I try to reuse it as much as possible so long as it's not contaminated, so um, let's see did i already upload the video, the one that the ac kicked. My butt. Yes, that is the video hugo that i'm talking about right now the video is titled.

The kitchen ac is not cooling. That is the one. Oh actually, no, it's not the kitchen ac. It's the office.

Ac is not cooling, that's the one that kicked my butt um that i talked about on my live stream. The last time yes and the the thing that kicked my butt was. I went down a rabbit, hole thinking that we had a broken thermostat wire, i'm not going to spoil it, but you'll see once you watch the video what happened with that? Okay? Why is it that when i'm using the pump sprayer it sprays good? You tried yours, but it sprays, weak, ralph, lauren castro, ralph uh. When i use the pump sprayer it sprays fine.

For me, i just pump it up now. Ralph. You also asked me about adding water to the venom packs. Okay.

So, let's talk about this refrigeration technologies makes a highly highly concentrated cleaner and they put it in a new bag called a venom pack, okay, the venom pack. Being that it is highly concentrated. You have to add water every single time. Okay, you do not use that cleaner without adding water you're.

Just wasting cleaner, essentially um. Remember that that bag, the venom pack it comes like, i think i think, on one of them. You get eight gallons of cleaner out of that tiny bag. So you have to mix it appropriately.

So when i use my little hand, pump sprayer i'll pour a little bit of cleaner in there and then the correct amount of water and then pump it up and then spray. It now remember when you get refrigeration, technology's new pump sprayer, they have a brand new one that just came out. It has two different nozzles you can put on the end. One is for foaming and then the other is for a direct spray.

You can use it for whatever you want to use it for so you want to make sure if you're doing coil cleaning that you use the foaming one okay, but you always add water whenever you're using the venom pack, whether it be any of the venom packs They make they make an all-purpose cleaner, they make an evaporator cleaner, they make a yellow, condenser cleaner and then they make a blue coil brightener. All of those need uh they're concentrated. So you have to add water to all of them. Okay, um: let's see what else we got in here, um, please take the hat off.

No, i got ta keep my hat on man. My hair is a hair's a mess today, because i've been wearing a hat all day long, so got ta. Wear the hat. All right, let's see what else we got going on in here, um and yes, i am growing my hair out.

A bunch of people commented about that. So i do things backwards in my area i usually shave my head in the winter and then grow it out in the summer. Go figured why i don't know so all right, let's see what else we got in here. What's the difference, uh be a refrigerator cooling system and an ac other than what they are for uh mad.

Sexy asked that question so essentially it's the temperature of the system, okay, um so refrigeration and air conditioning. What is the big difference? I mean they both take a compressor. They both have a metering device of some sort, whether it be a fixed, orifice metering device or an expansion valve majority of the time, expansion valves, okay, they both have a condenser. They both have an evaporator.

They both have some sort of a temperature controller or a thermostat. So really the only difference between refrigeration and air conditioning is the temperatures of which it maintains. That's it okay, but, as you start to drop the temperatures, you have to start considering defrost options. Okay in air conditioning, because typically we're maintaining about a 40 degree evaporator for the most part.

Okay, the temperatures are pretty consistent uh because the evaporator temperature is is typically about 40 degrees. It's not below freezing. Therefore, you typically don't have to worry about defrost too much. Now, there's some excuse me there's some weird situations where you might have to worry about some defrost strategies with air conditioning.

For the most part you don't have to okay, when you get into refrigeration, whether it be medium temperature or low temperature, either way. You're gon na have to have a defrost strategy, so the main difference between air conditioning and refrigeration is really just the control package right. The temperature controllers, the solenoid valves, the defrost circuit. That's really the only difference, it's the same concept so for those of you that do air conditioning and think you could never do refrigeration or vice versa.

You really can, if you just open your eyes and think about it, there's really not a huge difference between air conditioning and refrigeration, same concepts use the same troubleshooting methods. Use your volt meter check these things. I mean the control voltages might change. You know in air condition you typically will see 24 volts, but you know in refrigeration, you're gon na, for the most part, see 120 240 480.

Something like that jose rivera. Thank you. So very much for that super chat man. That was very very awesome of you.

That is amazing. The support is awesome that you guys give. So. Thank you so very much if you guys haven't already, please smash the thumbs up button thumbs down button whatever you want to do.

Any kind of interaction helps me out. So i'd really appreciate it. Okay, um, why not go industrial rather than stay commercial? I've always done commercial refrigeration, um. I would never attempt to take my business industrial.

I run my own business um. It's it's! It's easy for me to stay in my lane and stick to the commercial refrigeration or it's actually more or less light commercial refrigeration, but i just kind of stay in my lane: keep my head down and uh just powering through this. So yeah, i'm not really. I mean i'm interested in industrial, i'm interested in supermarket stuff, but i would never take my business there.

So um. Let me see what else we got in here: uh yeah it. You know what yes uh beau said that there's defrost and heat pumps too. That's that's very true.

There is okay, so um. Let me see what else we got into. Would i recommend a split type, air conditioning um. You know i mean of course, package style.

Equipment is the easiest to work on, in my opinion, because you have less issues to deal with, but unfortunately, sometimes split systems like what you see in general residential systems for many reasons, end up being more convenient package units are usually big unsightly. They can go on the roof here in california. You'll see a lot on the roof in the older communities um. It's rare that you see a package unit on the ground in california, um, not very often at all so um.

I like and prefer package units because everything's in one place, but you know it is what it is um all right. So let me see what i missed right here. Um, it's heat transfer. That's it jason johnson said that it is.

Our job is to move heat. That's all that we're here to do and to be honest with you and don't take this the wrong way. Majority of our job is just cleaning equipment so that way it can move the heat properly. I mean we have to keep it clean.

We have to keep the coils clean, you know, but all we're doing is relocating heat from one place to another, essentially right, that's all that we're doing here all right, so try not to let things get ahead of you remember when you're in a frustrating call when It's when, when you're in over your head and things are going crazy and you're frustrated, you're angry, take a chill pill step back for a minute. Think about it and just remember, break it down, simplify it. It's just moving heat. Okay, you know start methodically going through it and thinking okay.

This happens because of this. This happens because of that and you'll work your way through the problem. Okay, i'm not uh! You know the best service technician out there at all. Okay um.

I make a lot of mistakes just like everybody else. I just try to learn from them and again i try to remember that whole step back and look at the big picture thing when i talk about that guys. The whole big picture diagnosis. Of course, i'm talking to my service techs and, of course i'm preaching it to you guys too, but i still have to remind myself of that too there's times man on a friday night when i'm working late - and i don't want to look at the big picture.

I don't want to be thorough. I just want to you know: just slap a belt on it and walk away, and ignorance is bliss kind of a thing you know, but i have to remind myself all the time you know you guys actually keep me accountable because half the time i have so Many videos that i've started that never finished right, so i film almost everything i do and then sometimes i decide it's not worth a video or not. It just goes in my hard drive and i save it for a rainy day but um i so i almost film everything and i always have to catch myself like no. You can't take a shortcut here because you're filming this, you have to be thorough.

So you guys help me to to look at the big picture, all the time too. Okay, so um, while we're talking about the big picture stuff. Let's talk about walking around with blinders on okay um man, the coke nose is starting super early today. So this happens right.

It's so easy for us sometimes to just have tunnel vision when we go into these stores right and to a certain extent, tunnel. Vision isn't a bad thing, but you know we go on the roof and you know we're there to fix an ac and we can hear these funny things going on across the roof. You can hear a motor going bad, you can, you know, there's all this stuff, and sometimes we just go in there with tunnel vision and don't look at anything else right. If your company permits you to do this, you guys want to take the blinders off and pay attention on the roof.

Now the customer may not approve it. Maybe you're not going to fix it that night, but look at everything. Okay, guys, trust your gut. I do this all the time where you know i hear something actually one of my recent videos.

I just did it with the where the thermostat kicked. My butt and the blower assembly blew apart. I heard a funny noise, but i didn't really investigate it. I just kept focusing on what i was focusing on and i was not incorrect in my diagnosis of a potentially bad thermostat wire because it was acting like that, but had i had.

I listened to myself when i heard that funny noise of the blower motor turning on and off then i might have found that before i went down the rabbit hole and spent an extra 45 minutes. You know troubleshooting something to find out that we had a bad indoor blower assembly. Okay, so it happens to me too, but we just have to remember like take the blinders off. Look at everything.

Listen to everything. I tell people all the time. Just did an interview with a new guy um, you know he's applying to come to work with me and he just sat down and we had an interview, and i told him one of my biggest pet peeves is uh. I'm gon na kick my wife's butt.

If she adjusted the thermostat nope, she didn't okay. Thank you, i'm not mad. At my wife anymore, i thought she adjusted the thermostat, but she didn't um. So one of my biggest pet peeves is headphones.

When you're on the roof, i can't handle headphones. They're they're. In my company handbook no headphones allowed unless you're using it as a bluetooth device, because when you go on a roof with headphones on, unless you need them for hearing protection in a motor room or something like that. But when you go on a roof with headphones on you're, ignoring everything else up on that roof, so you can listen to music.

I would be okay with like a little job site, radio, i'm fine with that, because you can still hear things around you, but when you have earbuds in your ears and you're up on the roof working, you know you're ignoring everything else. That's going on up there. You're ignoring sounds noises, different things that could potentially alert you of bad things happening around you and stuff. So i am not a fan of people using headphones on the job site unless they're being used for hearing protection.

So all right, let me look at the chat and see what i missed. What is the worst that i have ever gotten hurt um. Luckily, i've never really gotten hurt. So i'm super thankful for that.

I sprained my ankle one time not at work and that's about the the most of it. So i've been super lucky in that fact. Okay, i did fall off a roof one time, and i was so fortunate. I've talked about this before, but i was climbing a ladder, one handing it.

I had my torch caddy. In my other hand - and i was going up - you know one handing like i shouldn't be doing and i went to go grab the top rung and i missed it and i fell off the ladder my torch caddy dropped. I fell down. I landed on something really soft and what happened was there? Was a giant chain link roof cage over the back dock of the restaurant and i fell into the chain link fence and landed on it like a hammock right next to me was a giant steel pole.

Sticking up right next to my head that i could have hit and hurt myself. It was that point that i realized. I need to stop being in such a rush, and i could have gotten very hurt. If not died, i mean i've, you know fallen off a roof, you know, so it's not worth trying to be superman.

It's not worth trying to show people that you can do everything. Man got ta, be smart about our jobs because i'm gon na be old. One day i'm gon na be hurt, i'm gon na be broken. You know i need to take care of my body, so i have slowed down dramatically.

Uh try to rope as much as possible, no more being superman as much as possible um. You know it's too easy and it happens in the blink of an eye so um all right. Let me get into here and see what i'm missing. Uh yeah, i see my buddy ralph's in here and he says he still throws things when he gets frustrated.

You know what i did that for a long time. I still have some anger issues where you know sometimes my wife. She doesn't quite understand it and i've gone to the doctor for anger, issues and stuff, and but man i get so much satisfaction out of breaking something and just when i'm angry just smashing something with my fists now, while it'd be stupid and it's not the greatest Way to you know, as i'm breaking things like, i mean something silly like one time i got pissed off at my printer. I think that's my second printer behind me right there because it wasn't working and i just smashed it like right on the ground and i freaked my wife out because she was sitting next to me and didn't expect it.

I was just pissed, you know it's like. I need to stop snapping like that and try to control it a little bit better and not scare the crap out of my family, but yeah i've thrown things before many times. So all right, let's see what else we got going on in here. Um, let's see i already answered that question: okay, cool uh, cope! Uh! Thank you! So much for that super chat.

I think it's kobash kobach uh. I really appreciate that, but all right, let's see what what would cause a system to have three leak holes in three separate parts of the system: frank, j, f, guan, well, frank! I mean it really depends but uh. You know it could be corrosion from multiple things causing leaks. I would, i would guess corrosion for the most part.

You know um, but you know refrigerant leaks, don't really happen on their own. It's usually a symptom of an improper, braze, joint and or some sort of chemical reaction on the system. So here in the restaurants, we see it a lot where most of our refrigerant leaks are on the evaporator circuits right in the evaporator coils, and it's because of the things they store in the refrigerators. They have a lot of acids, citric acids different things like that.

They become airborne and they attack the copper think about it like this guys. The statue of liberty is made out of copper right, but you know how it's that green color, because it's slowly, you know that's corrosion right. That's that's the salt and everything attacking the copper making it that green color um, our evaporators and all of our refrigerators are made out of copper. You'll actually start to see that green crap attack the copper and it starts to turn all kinds of fancy rainbow colors right.

But it's it looks interesting, but it's really corroding it away, and it's because there's corrosive things in the air that are slowly attacking that copper. So, as far as what causes three leaks in a system, at the same time, it's hard to say i've talked about this before, but i had a customer that it was a. It was a. I can talk about it because they don't exist anymore.

It was a game works, a video game, arcade place right and they had like restaurants and bars. It was huge and um. They called me because uh they had a drain plugged up on one of their regions, so i blew out the drain and then, like two weeks later, the drain was plugged up again and what it was was they were the yeast from the beer they were pouring. It down the drains and it was just plugging up the drains.

Yeast will do that right. It has bacterial growth and all that crap, so it kept plugging up the drain. So the customer got a brilliant idea and they figured out how to fix this. This uh yeast problem plugging up the drains um.

What they did was they took a pan. They filled the pan with bleach and then set it in the box and just let the bleach sit there and be airborne inside the refrigerator mind you. This was a brand new refrigerator so about i don't know three weeks goes by, i don't get any more service calls, maybe a month or something like that. I don't get any more service calls, but then all of a sudden i get a service call and it says the region's not working anymore.

So i go over. There come to find out, it doesn't have any refrigerant in it and i'm like what the heck. This is a brand new refrigerator. I open up the evaporator and it's completely corroded just like what the heck is.

This, the bleach that he put in there became airborne the chlorine and it started attacking everything and just disintegrating the entire thing, and they had to replace the entire refrigerator because it was trash. The whole thing was junk because they took it upon themselves to put that pan full of bleach in there because they thought hey. This is a great idea. They solved the the plugging up drains problem, but they put a contaminant in there that started, attacking everything and just disintegrating the entire box.

So all right um. Let me see what else we got going on in here. Is it possible to diagnose a unit low on charge without gauges? Mr green? Well, yes, that i mean it is possible, but you would have to have a lot of information um if you properly benchmark the system right, if you start did a startup on it. When you first installed it, you measured all the temperatures on all the refrigeration lines.

You noted it down and you have a log book. Then, theoretically, yes, you could not have to apply service gauges and you could look at the temperatures of everything and make a pretty good assumption that it might be low on refrigerant, based off of the temperatures and the lack of performance. So it is possible, but i wouldn't say it's possible unless you have all that data, so i'll give you an example, uh true manufa, well, one of the one of the refrigerator manufacturers. I can't remember if it's true manufacturing or dell field, one of them um, because they have these new r290 refrigerators.

They don't have service ports coming from the factory you have to put them on, but they want you. They have all the information. I think it is dell field, they actually have all the information and, if you just call them with the temperatures of the discharge line, the liquid line, the suction line, they tell you where to measure it. They can tell you whether or not you need to put your service gauges on it, based off of all the information that they have, because they've done extensive testing on their equipment.

So it is possible okay, but eventually, when you go to repair, you're gon na need to put service gauges on it and then diagnose it appropriately. All right, let's see what this is best advice for a technician: transitioning from residential to commercial, just brush up on your electrical skills and remember to listen to the new service technicians. It's the same concept from residential to commercial. It's just bigger systems, higher voltages, bigger equipment and that's pretty much it.

It's still an air conditioner, it's still a refrigerator. It's not really much different, you're, still just moving heat from one place to another, just on a bigger scale, typically, okay and the control systems. When you get into control uh commercial and industrial, they definitely get more complex as far as energy management systems and things like that. So all right, let's see what i missed in here um.

I already answered that one uh yeah, if you guys have questions, put them in caps, lock. Okay, what items have i thrown off the roof out of frustration, never thrown anything off the roof out of frustration. So um del field wants temperatures before you tap in the system. Bear down said that yeah.

That's that's correct, because del field has done a great job of logging, all the information, so that way they can give you a better understanding. Remember something when you guys call technical support and you talk to whoever it is insert name of manufacturer here, write down everything you can and save it, save it in your phone, whatever it can save you a service call or a phone call to them next time. If you ask them hey, what's the refrigerant pressure supposed to be for this certain refrigerator, write it down and store it so that way, the next time, if you're like me and you work on a lot of the same stuff, you don't need to keep calling them To ask them the service, you know what pressures they want, because it's right here so all right. Let me get to my list of things um, all right, we're good there, all right um! So you know i i kind of talked about it, but take the blinders off when we go on the roof.

Okay, again, keep the office in the loop, keep your service manager in the loop, but look at everything bring it to the customer's attention. You can generate work that way, okay, and that keeps you busy through the slow times. So i had an old video, probably from six months to a year ago, where i worked on a linux package unit that the unit was tripping a breaker and it was out in the really hot ambient out in the desert, and i changed an indoor blower motor On it because it had bad bearings, this was probably a five horsepower blower motor and it had failed bearings on it and i diagnosed that the bearings are what caused the breaker to trip. So the question is: why did i not change the bearings in that motor? I get so many questions from people asking me.

Why did you change that motor? You could have saved so much money if you would have just changed the bearings okay bottom line. Time is money. Okay, i don't stock bearings for motors. I don't even stock those big motors, okay, i'm not gon na go and that that again understand something.

I don't. I don't really explain everything in my videos. Okay, that location that i worked on is out in the southern california desert. Okay, it's about two hours away from my shop.

I got to think about things. Okay, yes, i could order bearings, but what happens if i take the bearings out and there's a problem with the motor now i've lost time, because now i still have to return with a motor. I have to leave. Go back to the shop come back when i can just quote a replacement motor and be done with it.

Okay, so it's always about time and money essentially also another really important thing. Is it's not worth callbacks? For me, callbacks are the biggest enemy callbacks happen, but they're horrible, because they ruin your reputation. If you have a consistent amount of callbacks, then customers start questioning whether or not you know what you're doing and if i can eliminate those i try to okay. Of course, i don't want to sell the customer things they don't need, but at the same time i'm not going to change bearings in a motor because it's just not practical for me to do so.

I don't have the tools hell. I've never even changed bearings in a motor. I i certainly understand how you could do it, but it'd be stuff that you'd have to get, and it's not really something. I'm going to deal with what happens if there was damage to that motor.

You know um, there was a video that i did a couple months back and uh um. I did. I changed the condenser family because the wires had had ripped off like really close to the motor, and you know people still ask me to today. Why did you change that motor? You could have just spliced the wires and it would have been fine.

Well again, time is money and i don't always explain everything. But in that situation that had an aftermarket condenser fan motor and i don't like the aftermarket condenser fan motors, because the stack on them is too high. The blade doesn't sit in the shroud right. They cause high head pressure, so any excuse.

I have to change an aftermarket motor to an oem factory motor. I try to do so so in that situation the wires wrapped around the motor they cut the wires off. I could have tried to splice the wires, but it was easy enough to go, get a new motor blade and capacitor and call it a day and be done with it. Okay, so i tend to do that whenever possible, all right um did they.

Oh that's too. Funny i clicked the dog barking thing from the overtime show, because i set my phone down my bad uh. Have i retrofitted ecm motors on walking equipments? No, i have not retrofitted i've gone away from ecm motors and put pscs back in what is my favorite brand of air conditioner or package unit well, first off, let's say that it's not necessarily that i think they're the best brand in the world. I love working on linux, commercial package units and i kind of like working on the carrier.

Commercial package units now do, i think, they're the best units out there, not necessarily, but i'm super comfortable working on them, because i work on them all the time you put me in front of a york predator and i start to get frustrated because i'm not super Comfortable with them, yes, i understand how they work and i can fix them, but i don't work on them every day, so i have to stop and think about it. So it's not that i'm endorsing carrier or linux over york or trane or whatever it's just that. I'm super comfortable working on carrier and linux, the most okay, so i would say they were fine, my favorite ones did they finally fix that building that i worked on with the thermostat hanging in the duct? No, that restaurant has like three units that have thermostats hanging in the duct, so um. No, could i go through my liquid injection troubleshooting sequence, chris cooley um? Well, i mean i don't know a whole lot.

It depends on what you're asking okay i deal with some liquid injection, like the dtc valves on the um uh low temperature, refrigeration, scroll compressors, that is, liquid injection. There's really not a whole lot of trouble shooting into those um. You know, there's a there's. A sensing bulb in the top of the compressor when it hits a certain temperature.

I don't remember what it is, but you can find it on copeland's data, but when it hits a certain temperature, it opens the valve and it feeds the valve has a strainer on it. Um. If you install it after the fact, you can always put a ball valve on it, but i mean there's really not a lot of trouble. Shooting i've.

I've never really had a failed dtc valve. I can't think maybe i might have changed one of them or something, but i change them whenever i change the compressors, but i mean i don't really have a whole lot of of of advice for troubleshooting them, because i really haven't had much failures on them, so Feel free to send me an email. If i didn't answer your question enough, chris, so um you saw compressors exploded at the terminals. Why is that tamiko said that um? Well, it sounds like you had a terminal vent, possibly so there was.

There was an electrical arc inside the compressor and it blew the terminals out. I mean that happens. It just depends uh majority of the time the compressors are murdered, so something caused it to go bad, whether it be refrigerant issue refrigerant, coming back flooding, the compressor. I don't know, but that's the typical things you're going to see on a terminal van is, is because of a direct short inside the compressor and it's going to vent the charge out the terminal.

Let's see what else we got in here have i ever had to replace three compressors. In the same day, i can't say that i have who puts thermostats in the ductwork uh. You know basically pm godfrey. I think that's how you say your name.

What they're asking me about is a restaurant that had an energy management system and the energy management system was not working properly, so it was a really hot weekend and the quick solution was to take a thermostat and drop it down into the dect work. So it was sensing the return air temperature, and that was a temporary solution. And then i gave the the restaurant all the information so that we can order the proper equipment to fix the energy management system and they've. Yet to fix it - and it's been a couple years, so i still have thermostats multiples hanging down in the ductwork a lot of people in those videos too, asked me well.

Why didn't i just mount the thermostat in the control section of the ac and then mount a return sensor down in the ductwork which sounds like it would have been a really smart idea. In my situation, the location that i was working at was out in the coachella valley, where it easily gets to 120 degrees outside ambient temperature. So imagine what it is inside the control cabinet of that equipment. If i tried to mount a digital thermostat in over 120 degree, ambient conditions that thermostat would fail, so that's why i mounted it down in the return airstream.

So that way it had the building air coming back, cooling off the thermostat. It's not an ideal situation. It was supposed to be a temporary solution, but you know i gave the customer the information and they have not chosen to replace the energy management system. Long story short: the ems system is an old siemens system and um.

They don't want to spend the money and they want to change it. They've been changing over to a new cheaper, not even an energy management. It's just an internet thermostat by bayweb. It's much cheaper, but you know it's on them.

I have nothing to do with that. They buy their own ems system, so i sold them the thermostat temporarily. Let's see you mostly see, train york and carrier units rarely see a linux, so jason johnson. I would imagine that you might be a little bit more flustered on a linux than i would because i work on them all the time and it's again just pointing out the fact.

It's not that i think one i mean i do have an opinion on which ones suck i'm not going to call them out on here. But but i mean you know they all do the same process. It's really all about their control strategy. That really starts to mess you up and confuse you.

So all right, uh. Let me see what i missed uh. I saw a question here i wanted to get to on semi-hermetic water cooled compressors. What are ideal? Oil sight, glass levels halfway? Oh man, it's been a long time.

I have to look that up danny. I typically want to see the oil sight glass when it's operating gosh. I can't remember it's. You know some of these things.

It's so easy to. Look it up online that i don't even remember it. I think you want to see it around the halfway or just below the halfway when it's operating. I think, but don't quote me on that: just google, it uh copeland, semi-hermetic oil, sight, glass levels and it'll come up guys.

It's so easy! All right have you ever had to replace three. I already answered that question. No, i haven't had to replace three compressors. What caused contactors to burn, um, impro or just just bad ambient conditions? Um, you know uh constant arcing.

Turning on and off they get a little bit dirty. Then they start to get hotter and they start to arc, and then they start to burn contactors. Are you know they have a rated life and, if they're, in a bad ambient area, where there's a lot of sand blowing around and stuff like that, that rated life's gon na diminish dramatically and be very minimal, so um, let's see what else um, let me see What i missed here, jaden, i see ralph talking to jaden right now, um yeah jaden put your question in caps: lock bud, it's already lost up in there. So put your question in caps, lock and i'll try to get to it.

Okay, sometimes you got to keep reposting it unless or you can try to email me is dawn dish, soap, a good product for leak searching. It would also make a good degreaser. I have used on dish detergent for degreasing things before the one thing i will say. If you try to use it as a coil, cleaner, you're, going to have a bubble party and bubbles are going to blow everywhere, it's so hard to get liquid dish detergent out of your equipment.

So when you wash it and wash it and wash it especially on micro channel condensers, even if you use like the correct coil cleaner on micro channel condensers you're, going to have a dang bubble party, because that crap is just going to blow stuff everywhere. I've never used it as a leak detector. I certainly know you could i prefer using the big blue by refrigeration technologies, because it's completely designed for it there's no bubbles when you spray it. So it's just a steady stream and that's just my jam to use.

Do i use drop-in replacement, refrigerants hvacr san, diego okay, so i have used replacement refrigerants in the past for sure, okay, let me look right here. Oh great yeah, i have used replacement refrigerants before um, but uh. You know it really depends currently right now, i'm not using any r22 replacements. I keep bringing it up to my customers and give them the option and they have chosen not to have me go with alternative refrigerants, but i have used alternative refrigerants for other stuff in the past.

Okay, the one thing i'm going to say is: whenever you're choosing and using an alternative refrigerant, you want to make sure you talk to and or read the compressors manufacturers literature on converting refrigerants, okay figure out what they want you to do and then also reach out To the refrigerant manufacturer and ask them what they want you to do: okay, because there's a lot of different things. You need to do. Don't just trust what the supply house guys say to do with said refrigerants: okay, so uh, let me see um with uh with any of the refrigerants. If you guys have any questions.

Currently, my phone's going off right now with service calls and stuff, so people are texting me um. If you have any refrigerant related questions. What i want you to do is reach out to my buddy ralph he's always willing to help you guys out. I just put his email in there right now.

You guys can email him and he can help you out. Okay, do me a favor if you guys haven't already sporland, has their final supermarket webinar of their series that they've been doing coming up this thursday on 5 20 at 1 pm central time. There's a link from the moderator bot posting it right. Now i'm going to post it in here too go register uh.

It should be a great seminar, this one's going to be on cool refrigeration, stuff and they're. Going to let me um, let me click this off they're going to be talking about co2 refrigerants, so check it out and register for the webinar. I just posted the link in there um have. I ever had anything on a package unit blow up in my face.

I can't say that i have, but let me see what i'm missing. I already answered that question. What's the worst tev brand um, i wouldn't say a worse tev brand i mean i first off. I don't like to talk negatively about people, so i don't want to call anybody out.

I'm a huge fan of spoiling products if installed properly, they last a very long time. So, let's just leave it at that. Okay, all right! Um! Let me see what i miss. What do liquid injections valves do to help in terms of the compressor um, a liquid injection valve, like a dtc valve on a copeland scroll compressor, it's going to drop the discharge temperature of the compressor, but, more importantly, it gets compressor cooling going on in the sensitive Parts of the compressor so that you don't have issues so a dtc valve or a liquid injection valve essentially is just an expansion valve and it's metering the refrigerant into the right spot of the compressor to help drop the discharge temperatures and help to cool the compressor Off from overheating issues, you tend to see that on really low temperature stuff.

So that's why you'll see dtc valves or liquid injection on most of the low temp refrigeration compressors um? What piece earpiece do i use for my phone? I use a plantronics voyager or something or other um, so in a recent video i thought i was gon na have to change a thermostat wire and a couple people reached out to me and said: hey. Why just changed? Why change the whole thermostat wire? If you just have one broken wire in the jacket, why not just use a leftover wire, that's not being used and just abandon the one that's broken. I have certainly done that many times and it can get you by. But i have to ask you a question: if you have a thermostat wire and you find out that one of the eight wires in that jacket is bad.

What caused that wire to fail? Do you really think that the wire just went bad inside the jacket without rubbing up against something or anything like that, or do you think that maybe it's rubbing up against something, and only one of them shorted out, but the other ones are almost ready to short Out so when it comes to that kind of stuff, when possible, i try to replace the entire thermostat wire, because what happens if the other wires start going bad too, of course, if the customer wants to just you know, do what we have to do to get It going sometimes we'll do that, but i'll definitely leave a disclaimer and explain everything to them so um. Whenever possible, someone had asked me about using ax belts versus an a series belt or a cogged belt versus a regular v-belt. Okay, i prefer to use cogged belts or ax or bx belts. Those are the only ones that i use really a's and b's.

I don't do anything bigger, but i prefer to use those over a standard v-belt, because i find that they last longer. I find that the pulleys last longer - and you know i know, there's a bunch of technical documentation out there to say that the cog belts actually reduce heat and wear and tear on the equipment and stuff like that. So, yes, i do try to use cogged belts as much as possible. So danny had to ask me a question about split row condensers and he said: hey um.

Why is it that there's split row condensers on these package units? It seems very inefficient um in in? Yes and no okay, basically the reason why they put split row or double stacked, condensers right that you have to split take the top off to clean them is because they are trying to reduce the footprint of the equipment. Okay, they need all the condensing space, but they don't want to make the condenser seven feet tall and eight feet long, so they double stack the condensers um. Let's just say it, make it easy for you guys if you're working on anything over four tons. Okay, maybe even three tons these days, but if you're working on anything over four tons, whether it be residential or commercial majority of the time, it's going to have a double row, condenser even residential air conditioners, like my house, has a four ton out behind my house And it has a split row condenser.

So if you pull the top off of it, you're gon na see two condensers right next to each other inside there. So if you wash one you're really only washing into the other condenser, so you have to understand that when you're doing that michael and many other people asked also in my recent video, where my condenser was really messed up, how come i didn't comb, the condenser with A condenser coil comb, if you guys don't already know, there's a special comb that you can use to straighten out the fins on condensers and in fact i have combed, and this was on my kitchen ac unit that wasn't working. I have combed every one of those condensers and once you comb a condenser to be honest with you, it's it's literally almost done like every time you wash it it's gon na fold back down again and the condenser starts to become really thin. The aluminum fin.

So once you comb a condenser, it's typically on its way out. You can usually straighten it, but if someone doesn't be careful with the hose and they bend it down again, it's just going to bend easier every single time. But yes, i have combed those fins before and they're. Basically you know it it.

You can't straighten them out anymore, there's so much damage done to it that you can only do so much so um. Oh! This is a good one. So brandon had asked me a question. He said hey what is my opinion on using the viper venom packs on the linux condensers, because he read some information where lennox said you could only use water on their condensers okay.

So with that being said, there is some truth in that uh and he's talking about micro, channel condensers. Okay, linux has an environ coil, it's a micro channel condenser and they do have some documentation. That says, you should typically only use water, but i will challenge that and say that linux, if you guys google search all right super easy. Just google search linux and viron coil there'll be two videos that come up.

Both of them are from linux, uh industries, and they have actually said that it's okay to use a certain brand coil cleaner. They actually say uh triple d um on their environ coils, okay. So what i'm trying to say is linux does acknowledge the fact that, if you're working in restaurants, they said you know greasy condensers, sometimes you do have to use a coil cleaner. They approve, you know the environ clear.

I mean the triple d cleaner. So i take it upon myself, i, like the viper cleaners. I have not gotten approval from lennox saying that i could use that cleaner, but i know that the yellow venom pack is non-corrosive, it's safe on micro, channel coils and it works perfect for me.