 All right so we're going to a reaching cooler I believe that's not cooling correctly so let's go take a look and see what's going on. All right so I had to pop these panels out so we can actually see what's going on. The panel here for the start relay and stuff's all fallen off but if you look down here in the capillary tube section we're starting to frost up which usually sign of it getting low in refrigerant and it's never been tapped which sounds about time for it to be tapped. It's not uncommon for these to leak it's a cold rail so chances are it's probably low and there's only one way to find out and so the thermostat did turn on and turn off which was nice so let's go and get tapped on to this thing and see what we find out. Okay according to what they're telling me it just started doing this last week and it had been doing pretty good so we're going to put a tap on there something it's easy to put on and take off. I want to see what the suction pressure is getting down to see if it's getting low. If it is great we're going to go ahead and then pull the refrigerant out and then we'll go ahead and get one soldered on there that I've already adapted with my swedge tool and we'll braze that thing on so we're just going to go ahead and do those steps first that way I can know where I'm at before I get started that way I know where I'm going. Chance starts a little low only holds 12 ounces we're going to do a scan too before we get too tapped into it make sure that's no humongous leaks. Chance starts a small one somewhere in either the rail or one of the lines somewhere. We just scanned the condenser and I just went berserk three times in a row here so we got a leak there somewhere looks to me like it's leaking there on that tee so let's grab some soap and spray it and see what we got that aluminum definitely it's nice and corrosive on that copper you can see that tee if that's a breeze that's such a crappy breeze joint looks like a solder joint to me it looks like we found it just where I said let's see it right there on that crappy solder joint we'll go ahead and do all the sides over remove that well out of there that's for the thermometer have to take some of that foam insulation off so it doesn't catch on fire it goes right up in there to the cabinet which will be kind of a pain but we'll go ahead and get that rebraised and then we'll put on our tap and get it all sealed up with a good tap. Alright so here's the little hand grinder it's not the strongest thing in the world but it does a pretty good job and allowed me to get in there to that back side I'm gonna as much as I always dig myself a hole I'm going to clean that up with a wire brush wheel and rebraise that real quick you see he's able to clean that up quite a bit I went ahead and got that one too you can see however braised this didn't have a clue what they were doing they just barely got enough in there it almost looks like silver solder honestly I mean I can make my braised joints look like that but you can tell there's no tarnish and we've got those ready to go and I'm going to go ahead and put one on the high side too that way we can monitor that because it never fails on these that something goes wrong and you need to be able to see both sides of the system so we've got those all prepped up ready to go and we're going to get this braised in all right that was a lot of fun that pipe right there came undone popped out on me which I was afraid was going to happen if I missed with that so I went ahead and pulled it out cut off the end got the so I can get the braise off the end and then put it back in there and then rebraised it was able to get the heat from all different sides so I was able to pull into the socket of the joints and get them in there so I'm going to go and do a nitrogen test spray all this for leaks make sure that we're all solid and then we'll go ahead and get this evacuated we're purging this thing out make sure we got everything out of it it makes it a little easier for our vacuum to be done and get this thing pumped up here and pressurized we've got everything bubbled up it does not appear that we have any leaks looks pretty good there pretty good there I don't see anything here on that one back here in the back remember how hard it is to get to so there's a little bit of extra on there and we're kind of down here in a cubby hole people stepping on me as I'm trying to work so we got that one in sprayed the fitting back behind there we're good on that I'm going to go ahead and wipe that gook off and go ahead and start evacuating this thing the system's been in a positive pressure the whole time I'm not going to mess with changing the dryer it you know anytime you open the system you're supposed to change it but in this case here it wasn't pulling into a negative so we're going to go ahead and just reuse the dryer we got and get her going and see how we how we do if we have any issues then we'll change it kind of do this a little quicker today since we really are trying to move in the moisture or anything like that gotta get this taped up and we'll put some of the foam back on there if not I'm just going to use some armor flex tape all right so I'm going to just wrap it with the foam tent it's a little bit easier it's able to get everything covered we're going to kind of double wrap it it did use the aluminum again as much as I didn't want to I mean the factory's doing it this is a do kind of a true doesn't like that you're going to have that no matter what kind of dissimilar metals you're going to put together like that all they do is they're taking this tube across here which is a sleeve or the thermostat to set in and they're just measuring suction line temperature very similar to how ice cream machines and stuff do it so we're going to go ahead and finish this vacuum and get her charged okay we've come up on our 12 ounces which is what the factory spec is set it through the high side which allowed us to verify that the low side is feeding from the high at our upper tool in there and uh let's go ahead and get this thing kicked on and see what we get here so pressures are starting to drop when they're in heck of a load right now you know it's kind of in that cold spot there we'll let this thing stay alive we'll see what we've got here just a little bit so far everything's looking good so we went ahead and dumped our high side in there and it took it from like 25 up to 35 so it's more of a couple degree plate temperature kind of going down here looking and seeing how things are feeding and see that the cap tube there is already starting to freeze off i'm not real familiar with what its normal procedure is might be a big deal which capular tube's got a glove going on it might go compared to the other cabinet next next to this okay this is the other cooler let's see how it's freezing up over there and feeding about the same way as that one is that rear tube there is freezing up the same way the one in front is that so it's kind of the same type of design so i don't know if they got more piping on that side than the other but it appears this is running the same same design this one's not been tapped so it's untouched so i think we're probably fine i'm gonna check my rail and make sure it's starting frost up because basically got to transfer a lot of cold over through a dead air space to the pan which is exposed to the ambient air which usually is way hotter than what you're going to be for so let's see what we get okay you can see we're feeding pretty good there the different pockets so good there my pressures seem like the i should say my temperatures not my pressures i'm not a pressure focuser but they seem like they were a little low and um i call the factory and told me something very fascinating says usually tells them just to set it by superheat i'm like on a capillary tube system he's like yeah i said less that's interesting so i said what do you look for so somewhere between 8 and 15 i'm like really i said what about my head pressure suction pressure since we're talking about pressures well you should be running about a zero degree evaporator and about 225 235 on your head well we are 74 degrees in here so 84 94 so we're about 15 degrees over in because we're running about a 90 degree condensing temperature we're running a negative 15 uh rail so he told me to add some to it to set it was low so i added two ounces which was way too much so now we're checking our superheat and i was up to 24 added one ounce overshot it and we're at negative 16 of app negative 17 uh actual suction temperature so guys weigh it by the scale don't listen to other people um i mean it's it's a good head knowledge it's good to know where you're supposed to be at but this just now wasted my time and now i have to go through the hassles of nickel and diamond in and out to get it right where you know it was probably fine before but i did get some good information i'm not going to fault him for that but uh it's just one of the things where you should have known better and i went ahead and listened to i'm sure you know you do this every day so i'm going to take a little bit back out this is why i don't like messing around with trying to add a little bit to it i like to pull the charge weigh it in fresh you're done and if it ain't right then it's their design it's wrong so batter you know you got a calculator too wrong or something like that or you had restriction or dry or whatever so far everything looks pretty good it's the rails like i showed you is getting frozen down and everything's looking good so i went and pulled it all back out because you just can't nickel and dime this thing out and my thermostat is bad on this too we're ordering a new thermostat on it this thing should be shutting off at zero degree and coming on at about 20 and i had to take it all the way down to one and i don't even think one was making it stop you can see there the pressures when it shuts off they build up pretty good and then they're going to drop obviously there's your super heat this is weighing in exactly at 12 ounces and this is without me dropping the charge from the liquid line back into the compressor yet but i i believe that's going to work its way out here in a little bit um i'm going to get this found off get the refrigerant out of the yellow hose and then dump in what's uh what's on the high side as you can see as we start to run our pressure starts to drop just trust the charge chart there see what he was saying about 225 and 32 we're riding that ballpark at startup but i was way way too cold because that thermostat wasn't shutting off like it should so he said somewhere between eight and 15 on the super heat which we're kind of getting down there a little more than i want to but like i said i've got to give her some time here to stabilize and it'll come back up guys enjoy the video and you want to see more like it make sure you give it a thumbs up and hit the subscribe button don't forget to check out facebook page hvacr survival and we're also on instagram so until next time guys we'll catch you on the next one