 This video is brought to you in part by True Tech Tools, quality tools, essential support. All right guys, so today we're here at a grocery store and we had an alarm on the ice cream cases and we get here and just judging from what I was seeing that probably said was airflow, no airflow, so the fans literally suck it in, blow it through the back, through the back wall, out and through the air bands here and it drops down. These are electric defrost, you can see that we've got some issues here, looks to me like that one there is partially unplugged, we gotta check that with the amp meter yet. Chances are we're gonna have to melt this with water because it'll take forever and obviously this isn't gonna get it. These cases are all old, most of my stores are really old, now this case over here was perfectly fine. They decided not to pull that one, I left that on them, I had them pull this here, heat will build up, I told them it's a possibility it might get warm over there but you roll the dice on your own product. They told the store manager and they made that decision not to pull it, so hand valve is open there, a lot of freezing up going on behind the TXV, may possibly check screen, most of these stores got dirty systems and screens get plugged up quite often but from what I'm seeing here like I said the defrost looks like it's an issue and we also got a door here that's sprung, somebody opened it too far and bent the bracket so the door won't shut so we gotta fix that which would be nothing more than a hammer and a chisel. Yep, no amperal, so that's that's a problem, that right there unfortunately is completely frozen, so we're gonna have to get that water, now what the bad is this is the one that actually had the alarm, so we're gonna go ahead and deal with the first one here, this is circuit 31, this is circuit 32, check the alarm, so this one here might end up having to be pulled next, as you can see a lot of times people leave doors open and you'll see a lot of crap Frosting up on stuff, things like that, so we're gonna deal with that one piece at a time, you can get well overwhelmed because as you're here you're gonna get asked to look at the meat department, you're gonna look at deli and everything else, so right here is our hose connection which is better than some so you can actually run that hose all the way across the top. All right so one of the first things we're going to do when we get this water rolling is we're gonna make darn sure that drain works, last thing you want is a big build-up water in there and no place for it to drain, so we have one 50 foot hose and then this rubber hose which is one of my craftsmen hoses which is rubber probably one of the best hoses out there, so we want to make darn sure we got good o-rings otherwise you leak water on the floor you want to keep your hose out of the way, otherwise you got trip hazards which then means you got liabilities which means then you lose money and forget the voice went to AHR, picked up a nice cold over it but it definitely was a real nice parting gift. I'm still yet to figure out why you'd have it in Chicago in the middle of winter instead of somewhere nice and warm but whatever. Now one of the things you got to watch out for these people that love to put these stupid little tags in here, this crab gets into your uh drains and we'll plug it up. Now for those that are wondering why we use a water, water is one of the fastest means because it has the most contact with the ice and even though I'm not going to show you how to melt ice I am going to show you some of the points that you want to go after first. The first thing I'm going to do is I'm going to get this wire here falling out so that I can actually unhook the re-hook that thing up. Once we get that done we're going to check and make sure all the heaters are working, if all the heaters are working then I think the majority of it if you look here you can see that a lot of the ice was built up over there. I had one motor here that was bad yeah you've got some real hodgepodge stuff going on here that happens unfortunately. That's nice where's this coming from? See what I'm saying? It's always something. All right we got our cone there we'll deal with that in a little bit. This here pulled right apart. Turn that to sink our whole hand in there as you can see that is really flipping tight really bad that setup it just barely reaches it that is really a bad setup. I don't think I can pull it any further this direction and we got it but this is this is just ignorant okay I got three amps it's working so the heater's good that's a good thing like I said that's just crap okay as you can see most of that ice is superficial and it's towards the front which is a good sign so we'll go ahead and get this thing melted out and the big thing is is making sure you've got it all the way in that very very back corner you don't get it all the way out of that very back corner that'll cut the airflow off and it will come on right back again within a short period of time and you'll be back doing this crap all over again and this is not something we really enjoy doing so you gotta make sure you get it really really good if not just what you can see you need to get the behind there where you can't see which a lot of times I'll use my camera to get in there to get to it and that way I know I've got the air band behind her because like I said this thing's gonna blow straight through the coil to the back all into that back wall there that metal part and it's only sometimes an inch or two back here and there's not a lot to work with. Water's trailing out on the floor that's fantastic. All right so we got it pulled out and as you can see the drain line there goes across and all the way down there that's where it's leaking out is right about right in the air area you can see everything down here is very old from like the 70s everything's just if not 80s I mean either way it's like 30 plus years oh yeah see there you go that's the problem they got a plugged plug drain right there all right so I'm reaching down there already pulled out one of those stinking plastic things kind of just dig dig this crap out when I reach up to the bottom of this and feel stuff in the pipe itself fantastic unfortunately that plant floor drain is got a grill in there and I cannot remove it so let's see if it'll handle the water now got water running it appears it's staying down so that's good let's get busy again all right so I got them cleaning that up hopefully which makes it a little easier so right here's your terminations you can see one of them's not even strapped enough and the other one's hooked on there it's hard to say whether or not which one's rich but sometimes one's for the electronic side of things one's for the hard wire but we're gonna try to melt that last that way these heaters continue to run helping me out while I'm doing the water notice some yellow here on some of the snow that could have been from a leak most likely so we're gonna check that leak detector we're gonna check these other defrost heaters before we get it too warm which it may already be triggered triggered out that one's working that's a three amps that's good three amps good let this one here you can get right around the metal piece it'll it'll give you ember all see three and this last one down here the loopy dupes already on it that's a three also so they're all working it's hard to tell but since the heater element looks like it goes completely underneath the coil to the back it may actually get it pretty good back there for me hot gas defrost don't have that a lot of times that's what I'm defrosting is those type of coils where you use the compressor hot gas to reverse flow through the suction come out about right here before the txv comes out and then it returns on the liquid line back to the rack and then is reused throughout the rest of the system we'll look at the rack here in just a little bit all right so that one was wire tied on there and it just came undone so I don't have the metal clip like these have got there that's the high limit limit the rest of our determinations for electronically so in theory it should kick out the contactor yeah this one right here the bearings you can see it's yeah there there it was fun a couple times it didn't so one and done let's play I look at it see how that one does a lot better of course the blades all laughed out too okay so what we ended up doing was just crimping the short piece onto there that way it's not live got it on there I have heat shrink my heat shrink don't go that small so in theory it's not going to really matter much because half of this wire is in the water anyway all right so we got it all taped up went ahead and put a couple loops around the plug too so it doesn't come unplugged as any water gets in there again pull apart came out of defrost went ahead and closed my hand valve there otherwise fans are going to be coming on these fan blades are whacked out had to take off those wire nuts which is really comforting got the new motor here it didn't have a plug on it anyways it works out good universal about bracketing to get stuck them out on the sides or on the back we got a new clip like I said the motor thing I believe it'll work it's just not perfect all right so we've got it in place everything's pulled up blade turns looks like it should work pretty good you see those blades there cup like that so it will work got them taped back up so I need to get the camera back here real quick and make sure the rotation's right I mean it says clockwise some do it by lead in some do it by shaft in here's my camera I've got which it's got side camera and front camera both so we'll just slide that back here I did notice I missed a little spot here but let's see if we got everything in the back all right so we're looking at the very back I see a couple spots here where there's like a little bit like the very top of the coil for the most part it looks pretty dang clear I mean you want to get all of it out of there I'm going to go ahead and see the bead of water underneath here to try to get any last residuals but we pretty much got it I checked here and over there got checked down there yet that's what I'm talking about the camera I'm thinking about getting few tech tools has got a tip that will bend 180 which I think might be a little bit better than dinking around with a side camera because it's very hard to get this thing lined up to actually see what's going on but you can see the silver there that is going straight down through the top of the coil it looks like we're clear yeah well I think it'll be you having to come back if it ain't right so I think we're good I'm gonna make sure these wires don't get tore apart when you lay this back down this is one of the things where kind of kind of a pain yeah you can see some of these blades are just jacked to the maximum here you can see that thing there's tweak twonked and everything else there you know I just got to do your best you can tell the blades have been reversed just to make things work where we're at right now is nowhere near any supply houses we got to keep stuff on the truck and you keep these stupid fan blades on your truck for 20 years and you never use one and then take one off your truck and then you freaking need 10 of them everything down there is running like I said this one here stayed off because I shut the uh oh yeah that cap is loose jeez all right um one good thing to do right now while we got it is go ahead and do a quick leak search real quick just make sure there's no leaks uh right now it's the perfect time to do it everything's warmed up okay let's go ahead and open this up get some flow there she goes notice that bulb wasn't flat because it's on the curve a little bit it's only off by a little bit that's enough throw your super heat off so go ahead and readjust that a lot of times those will leak there because they clean them and they end up not getting tight or don't tighten up or whatever and I'm not going to say you're going to get a really great detection here but I'm just saying now's the time to do it I've been able to pick it up in the air band if it's worthwhile fixing it type leak this door here the deal is is you can't make it stay shut it literally pushes out it's because of that door comp catch right there somebody hammered it hard and caused some issues so we're just even smack it down all right all fans came on cleaning the new one it's not blowing out at me so we're good to go let's go ahead and get these bottoms in I see a little silk red right there tuck that in a little bit we can stop these by going right to the center my gap see that wire nut that's out of the way so good to go probably one of the worst things about grocery stores is all the food in the way and all the crap you got to take apart to get into it so this literally goes in there I'll take one shelf completely out that way I can shove most of the stuff down all right just a little persuasion here it's able to bend that down yet still when it opens up it still hits and catches so when the people aren't paying attention and they try to open the whole door it will shut I mean obviously the spring on it sucks but it does shut now I need to go back and check the control see what's going on with these things over here and then I've got something in the meat department and then I got another store got to go to so we have one rack over there and we also got lines of going over here and going in here this is one of our racks this is the nicer of the group here at this store so that control board's up here which were forced to work with the Emerson which sucks because some of the numbers were off but anyhow and then I had some buttons here that ain't wanting to work I said something about that that hasn't gotten fixed yet so first thing I did when I got here is I wanted to make sure that my defrost was working so these are 3-1 and 32 cases so I went through and made sure that they were closing you see where oil was at before I fixed the repair and fishing line which goes to these pots we're out of alarms we go up here 32 which is what we were working on then we had two temperature sensors so this one here is 7 and 12 and combined together average 9 set points negative 15 but in reality there's no solenoids on this thing so it just runs off the br valve well sort valve as you want to call it so you regulate your suction pressure and that keeps your saturation temperature where you want that so you can keep a constant temperature that way you're not cycling compresses on and off for no good reason it's the most accurate way of doing it over here's your medium rack here's your low rack this one here can combine them together but it's closed sight glass filter dryer pop off valve that you see the other day and I'll put it on that old factory that's just the way it is on bigger systems these go up here and they distribute out throughout the store they've got 31 and 32 and here's 32 that's the other one that was the alarm earlier that one should come down to temperature pretty quick here one hour delay after defrost which means it ain't going to delay it's not going to go into alarm and even then 15 degrees is trigger point so it's already below that so it's not going to go into alarms they should clear out here and be good to go so now we need to look at our alarms again so this morning when I got here 32 was doing this deal if you come down here you can see 32 shorter that we don't have anything else on 32 so 32 is a new beat 32 like I said it's us next set of cases so let's go into 32 and see what our sensors are see which one's acting stupid so we go back in here we go under circuits I like going this way down don't work like I said page down go back up now go to 32 hit enter so we got two cases a negative 19 and 18 the other ones at 11 what we need to do is check and see if that temperature sensor's accurate by hitting the tab key I was able to bounce around so there's 19 now I can hit enter I can grab that turkey you see things got stupid recently let's go see if we can see what kind of temperature actually is so we're gonna go back in all right so I just went through and marked these stupid things so it's be easier I'm big into doing markings now it's a newer sensor right there you can see it say um why are we pulled we have no airflow great so we got problems so they luckily already got half of the pulled if we can get in here I'll bet you a dollar in our toils which throws up so we can do everything we just did all over again hands running calls froze guess what pull the whole case because that's that's a flip and miss all right so each one of these is a case so from there to here's a case from there to silver thing that's another case and the third one down there's another case I mean it's got its own evaporator so these all here feel like they've got good air flow so we're not going to miss with these if they were cut off they would have poor airflow they were doing something on the advanced refrigeration podcast about these little things something about them causes it to do that I don't remember what exactly it was but yeah so anyhow that's what we're up to now so as soon as they pull that bottom row they're not going to pull the top of it and then melt it out again and we'll see if the heater's working he said they were just out of that that's the reason why they don't have any of the air so all right so we went ahead and put the little bottom rows up there a lot of times I get these things out of order which I know who cares they got to deal with that but the problem is it takes them longer to put it back together which means they ice up the new coil that I just thought out so I try to make it as easy as on them as possible and most of these people have been here for a long time making friends with them is always a good thing so like we said 32 is what we're going to do so back to circuits can't scroll down so let's hit page down gets me to the bottom go back up to 32 hit enter there's a case hit enter man on defrost okay now we can hit the next team the defrost I go ahead and go emergency defrost don't know what the difference is but that's what it does we're now in defrost you see that temperature sensor one is at 36 the other ones are at 17 below go over here should see a 32 heater come on there's a delay there but it should come on I could get earlier fans off defrost on why is it not doing anything yeah there it is now it is maybe it wasn't or I just didn't see it you see it is down so yep it's on here's the water heater that's free heat free heat so what it'll do it'll divert the flow so you can either go hot gas you see coming out of the oil separator comes up it's either can go to the hot water heater and then return so to supply out come back then go over to the outside unit and then it can go either a full coil or a whole coil so that's the whole condenser that's half the condenser so it'll switch to keep head pressure up and then what I'm saying here is it'll let it go to the water heater first so you're getting free water which it is running and it's hot that's coming out fairly hot and going in definitely hot all right so I'm just taking a look it's all iced up you know what I said about that drain well I don't see a drain heater uh or a drain so it's probably the problem is probably the drains froze up all right so back down here we go again and you can see you got galvanized and you can see that we got ice down there which is a really bad thing because that means that line's probably frozen an inch or two down in there there's a drain heater it's broke off so we're actually going to have some water down in here all right so I went to go around my nitrogen here but I found a nice little plunger and was able to suck out some of that crap which is these damn tags that they freaking leave in there and that's what it was and you know those wires are alive but you're not seeing me get shocked but I don't really like seeing it go back down but I mean the plastic pieces even get the big ones great look at that that is there's nothing brings more joy to your heart than seeing us ever start to drain like it started to and then stopped with that velocity they got going right now it may actually be pulling them on through the drain but you're better off to get it completely out of there if you can which is what I'm doing then the big thing I always do I don't think many people do is they don't flush all the crap out that's in the case get it out while you've got the nice she's draining up pretty good wow and it's going all over the floor great fantastic oh yes all right it was plugged up again so we got a bunch of those plastic things you can see they're dug out of the grill there was a grill there and it was all plugged up yep you can see the heaters are working the ones that I checked that I could check are working just fine came back out here to the truck got my heat shrink and got some 120 volt heat tape here ahead and cut her off heat shrink heat shrink this is what we usually use buck connector hook some 14 gauge or 16 gauge on there this thing doesn't pull squat anyhow going to go back in there get it hooked on there with the fans shove it down there as best I can and get this thing back up and going now I do have a another heater stick here this one here's 110 volts and 120 volts 30 watt stick but usually needs something to shove it down flat and with the way that froze down in the drain I'm a little bit worried that this wouldn't work that case is I think saturated with moisture and that transfers the cold right on to the outside and we cause it to freeze up so that's another drain heater that we stocked that we would have we were able to unplug that fan because that was live that kind of hurt so let's see if we can drive this thing in there ain't sure which way it's going yeah it's going towards me here we go yep good oh yeah look at that beautiful there's what we got out there now I can just plug that right into that and that's why I left that a little bit extra long should all flop down and all be happy happy I'm gonna put some tape on some of those plugs so we just checked the last of them that one came in at two and a half and got them all taped so they won't come undone so we should be able to kick this thing out I can't believe it's still in defrost it must have went into a natural defrost yep see you gotta make sure that see there's one wire there it's gonna get in the way rest on refined okay we got that opened all these turn I don't see any wires in those 32 it's in defrost let's enter let's go in to setup look at the defrost times two o'clock it's uh 227 so we're gonna go ahead and cancel that out we're gonna back up one hit enter we're gonna have to log in and hit enter we're gonna go down to manual defrost seven we're gonna scroll over to end manual mode hit enter gonna drip well it finally kicked on we're already 18 on the furthest case 57 is the one I was on now that one's dangling so I'm gonna go in there and see if those fans came on yet all right so the first one we did here it's coming in at 17 according to the controller I've got 12 so we might be a little restrict on that txv or the txv is not feeding right then everything down here looked really good except for the very end one which I still had a little bit of ice in this very last spot here so I've got to melt that crap out of there all right so I ended up doing down here because I wasn't going to go through this crap again ended up drilling holes in the back wall took my camera down to the top so just it a bitty hole that'll be completely covered by product checked all of them across so while I was doing that I ended up checking my thermometer currently right now we're negative five so we might actually golden now look at it negative seven negative 11 negative five it took a while but it came down yeah you can see she just so product was warm it just took a while all right guys so that wraps that one up everything was working good I went through everything with the manager made sure that that everything was at temperature the meat cases something about either was too warm or too cold but he said we could get that on the next trip it was not critical the guy never came and talked to me so he wasn't sure about it and they were gone so other than getting locked out and had to walk around the building everything else went pretty good so everything is running like I said at temperature that's just a easy day but time consuming and a lot of wear and tear you're just tired you know the day because you're constantly going back and forth back and forth back and forth and nothing's easily adjusted on that rack everything's got to be done back at the sort of valve so all the temperatures on the display is totally false I mean it's just a gives it a reference point and you tell it hey if it goes so many degrees above or below it that way it alarms and so that way you can keep an eye on it but short of that it pretty much is states consistent temperature based off suction saturated temperature so anyhow have you guys enjoyed it until next time we'll catch you on the next one later