 This video is brought to you in part by TrueTech Tools quality tools essential support All right guys we have us a reaching cooler here. That's not keeping temperature the maintenance guys clean up the coils And it's still not working right. It's too cold. It's too warm So let's go in here and take a look at it and see what's going on haven't done one of these for a little while So I think it might be good to show it again So let's go and take a look at it and see if it's just thermostat issue or if it's refrigeration issue And how I narrowed it down. So what we got here is a true Got ourselves an old mechanical control here I can tell because it has the metal screws right there. I want to make sure that this Sensing bulb is in the coil. So let's take a look at that Make sure that all of our fans are running Which they all are our coils look like they're clean here When I looked earlier, yeah, they're clean. So we've got good airflow there Let's take a look downstairs down here and take a look to see what we got on this I Want to make sure that the Compressor is kicking on every time So before I jump into just changing the control, I want to make certain That you know, the compressor is actually starting You really can't know that unless you tear into it All right, it just kicked on it kicked on really smooth fans running So we know where the condenser fan as of right now. It's working. Okay. We don't have any short wires See if they've got an isolation relay. So what bothers me is if I change this to electronic control That there's a chance that it may have taken electronic control out because they didn't provide a isolation relay to kind of take the Brunt force of the amperage of the compressor starting Our coils nice and clean. They did a good job on that They kind of just keep that on there to help keep the stuff out something we were doing So they just copied us, but they're using A thicker material which kind of I think can be a problem Now what you can do and I've kind of talked about in the past is you can actually Stop the evaporator fan sticker thermometer in there and if it gets down to about 18 degrees area Which is about what this actually shuts off at because these thermostat controls are you're actually defrost controls to They're a constant cut in so they always kick in at like say 38 degrees or what have you They cut out at about 18 ish give or take some do you know up or down a couple degrees But either way they're sensing coil temperature And if the coil doesn't get down to temperature because it's not got enough refrigerant in it It won't shut off and it just runs and runs and it'll start to freeze up But when you're getting all these wild swings Only thing it could be is compressors not starting or the control is a chunk And I'm thinking towards the control being jumped because we are perfectly Within range and we got here this thing was running right at about 34 degrees area Which looked pretty good. I'm going to check and see which control this one takes I think it takes the electronic one that I've got so probably just go with that and go that wrong So obviously I'm at a place that's restricted such as a school and they've got door safety here the magnetic kind so To get in and out without locking yourself out all I do is I put my Door jam here and that blocks that for making good contact to the magnet And it won't lock me out. So there it makes the buzzer happy But yet I don't get locked out and then I remove that when I walk in and out that way You're not compromising security because literally I'm parked not even 20 foot away, so nobody's going to sneak in in the meantime surprisingly, I actually stock these on the truck And I actually have one here closer to the back door comes with Coil sensor and the sensor for the air I mean you guys have seen this a couple times this new one here comes with the relay the old ones did not My original one, let me look here see if they got rid of it yet Did they sneak one in? Yeah, this one here doesn't have that relay I would prefer to have that relay on all of them Unfortunately, they do not come all come with it and since Uh the guy that's in charge of this place So one of my friends I'm gonna make sure that I He's the one that's got the best chance of not having problems. We're gonna go ahead and get that mounted down below Let's get this thing up and going you guys have seen this before but we'll go ahead and go over it I did it in another video When these first came out it was kind of cool because this kind of replaces a lot of different thermostats Uh and because it's actually sensing air temperature for the off temperature It's not as critical Far as You have more more opportunities. So anyhow, uh door jam check those guys out that thing's awesome So you got our temperature control here Which we've got our two different sensors probe one probe two Get generic checklist on the back here tells you what it's doing Get your neutral line in compressor going out and auxiliary for Fans that are different There's the thing I was talking about the being different. This is a Isolation relay. I don't know. It's about gotta be 120 volts What's this rated for This is rated for 75 to 240 volts In Thailand with pride All right, so The black one goes in the air path the white one goes in the coil Shoot has to be done by a qualified technician down here Is our power plug There you go. It's 120 volts. So we're good on that And it's not been tapped or touched or molested by other people So no reason to dink with the refrigerant if we don't need to so we're going to go ahead and drop this down. We got The temperature control right here Which looks to me like It's it's connected in there to the coil It's not very well connected in there. You can see that now but it's out here But they do have it in there looks like it's been in there for a little while So we're just going to change it. I'm not Taking a chance. I'm having a call back on it. It looks like it's the original one possibly they actually hooked the putty back around The It's a hot wire because that's the one that has to go into the controller It's one of your backup wires I think I can get away with not using that one of the things you're gonna have to do is you gotta get a neutral And worst case scenario we could use that orange black wire there for neutral But normally they break the power to the fans pretty easy on this one We can get the neutral uh from the fans right here If it was a freezer and things like that that would cause some issues But you got to make sure that neutral is constantly powered I want to make sure that this is going to reach that control so we're going to come high back here It kind of getting closer to this here. This should be neutral If everything's wired right strip that back We'll check all that here in a second like looking at it from the back side to make sure that it's actually getting the Wire into the socket far enough that it's not going to pull out and it's not exposing the wire Well, that's exactly the one we're going to use it for neutral either way They have a couple smaller Speed terminals over there which are For the relay with the neutral that's what I ran into a second ago is the neutral Did not fit in there On the terminal. There we go. So there's neutral Wire going down and back again, that's going to be these two here so your compressor Whatever one goes down below we're going to hook it to that So we got to figure that out. We got to turn the power back on Make sure these stay isolated and we'll grab our meter and we'll check that We're going to take it grab these two. We're going to find out which ones are hot lead So we're going to go to one of these We're going to shock ourselves and we'll go to ground Nothing there. Let's go to this one There's 121 volts. So that's our hot lead directory The other one's going to go to the compressor a lot of times. I'll use either black or red Since I have the red available I'm going to go ahead And put the bread on there like this that way we know in dc terms you figure You know, some people get the relationship here, but obviously This one's our power wire. Most guys don't even do this So we'll hook that one up You can see the lights are lighting up Now that's going to send power out on this one here, which is the compressor Make sure you'll now one And now we need to get our probes in there We're going to go ahead and unplug it now. That way we don't be shocked or below the controller Pro one is black. That's going to be the one that goes into airflow. We're going to be putting that up there This area up here. You don't like my other canipics, but you're going to load these lines and use these for the nut That's that's my actually my lines winds are my hammer. So I don't use them as much as I used to I see some oil there. That's matter of time till that goes out All right, we're going to run this here I'll run this Back through there Now that we're through here, we'll go ahead and pin this thing up in here Probe over here to number one Go ahead and attach that Going to get it hooked up. I will reattach all this In pretty good up when I'm ready to mount it up We're going to go ahead and bring this one what I'll do a lot of times I'll go ahead and bring this Through some of this here to kind of make it easier so it doesn't get caught on stuff You can mount it on the back side with an eyelet, but for me it's just It's a little easier So it doesn't fall down That's crap you got to screw with I'll try not to attach it to the power wires. I don't want any interference into my Sensing cables far as temperature. I don't want nothing to throw them off It doesn't say that it'll do that, but I've just had problems in the past with things like that. So We're just going to attach that to there Kind of clean up some of this wire in here Then we'll strap the excess Black and whatever else together with their things And this has to go That way if you want it to point towards it So we'll mount it like this And I'm going to go like that Well that's really like that Make sure all those wires are clear and everything and then we'll slide it up into place I'll go ahead and get one screw We just got to get this mounted up and then we'll send out that other bulb The white sensor in the evaporator Oh, that's fantastic chunk That's great. That's really great. So I did screw up What we're gonna do is we're just gonna Put a little dab of silicone on the back side Once that dries, it'll be fine You can easily take silicone apart Don't want to get too much or it'll get inside the switch there Just gonna put a little bit there to help hold it in place So I know that this Is on zero Defaults right around four Four and a half five area We're gonna go ahead and set that up in there There's that one We're going to get that White wire back here and we're gonna stick it up here at the top Of the coil Just at the very top one one right below The refrigerant tube in the coil And we'll pinch that back together Like that And that way it pulls it in place slightly And we'll just stick this on a little bit of Looseness back in there And that'll keep everything from getting touched because as you can see you're not able to see that at all And it's not gonna fall in sag so it would be good there on that And that's why I put those wires through the loops Down here is where the power gets sent to the compressor What we're gonna do is intercept it and we'll jump it so that Instead of that power coming right from the thermostat, it's going to power a relay instead As you'll see here in a second If I can never get this garbage all undone because it's such a wreck Here's all your whites for your neutrals The power wire coming down from above It's going to eventually make its way over to this Black lead which goes to this pink one. So this pink one is going to be what's coming from the thermostat. That's what we need We're going to go ahead Snip that This one needs to hook up to the coil of the Relay we've got two tiny spade terminals. They give you one Crip one Which we're going to put it on that right here Normally, I would not pokey This is so small I'm going to use the pokey There we go That's going to hook onto a coil Like that Now we're going to need a neutral That's the other small one here That's going to tie into the white ones They used to have a bigger relay. This one's not very big And that's going to poke right in here with these other neutrals and there's one empty spot. Look at that Up it goes and then it is. Now that will energize the coil Now we're going to take the power Lead that was cut loose Which is right here and we're going to attach that to the relay. I gave us enough Waco terminals here to Wire the block So let's go ahead and get this one right here Lock that in here and then we're going to extend it to this one There we go And that's going to come down to take your choice. Don't really matter. It's just an open closed circuit And let's just tie on to one side of the relay here and we got one left over here that's going to go to One of the powers which is going to be right here So this black wire here black mess, they have one extra And this is stranded, but it should fit in there I have to have other stranded so that's good. I just need to get a crimp on and we will crimp it to that And the whole purpose of this is they're letting the Thermostat that's you know lightweight relay in there, which originally they wired straight to the compressor Control the coil. The coil is just going to make the switch close It's going to let the power go in and out to the compressor and you'll be hunky dory We're going to mount this thing in here somewhere Probably on the bottom and honestly I think we might be able to tie on to that one screw there. We would have to fool with it because that's pretty thick pretty thick stuff There we go. It's not going anywhere. It's tight. I've usually put a couple of them in there, but Not too worried about it in that box like it is we'll be fine That's really really thick metal right there And what to tap into you're gonna have to go get a pretty good size screw And it's not going to go anywhere Okay, let's go ahead and turn this thing on All right, it is running. Let's let it run for a while and see if we hit temperature Let her run for a little bit. We cycled it off and back on again And it's holding perfect. It shut off at 34 degrees All the lights work. All the fans are running. We got our thermostat set. I told the maintenance guy What happened with the thermostat? He said he's fine with that and Everything's back together and we're doing good. So That's how I determined it was just kind of by making sure that everything's clean and clear and if it's over cooling and Just asking the right questions All right guys, let's gonna wrap that one up The way I decided that it was going to be the refrigerant controls because we made sure that everything was cooling Properly on the refrigerant side made sure the motors were good made sure the coils were clean Talk to the ladies in the cafeteria there just to kind of make sure everything was working the way it should And then uh went ahead and changed the thermostat control there That control there has got a constant cut in very similar to the other one It uses air temperature for that and then it uses the Temperature control that's in the coil to know when to kick back in So you've kind of got some true measurements there of what the actual air temperature is whereas the other one was always kind of a calculated Number off of the coil itself And then this has its own built-in algorithm for doing the defrost if I remember correctly It was kind of a short video kind of simplistic, but you know unless you're searching through my Uh video archives, you'll miss a lot of these different things I want to thank all these new subscribers and stuff guys. I haven't said that very often lately But it's been growing quite a bit and I want to thank you guys for watching I thank you for subscribing the thing that helps the channel more than anything is by hitting the like button That's almost more important than even getting subscribed But and if you're not going to subscribe if you would at least hit that like button that helps a lot Honestly negative or positive either or it just kind of says Show it don't show it whatever they still will recommend it either way It just the that's one of the many ways that they do the algorithm to determine whether to recommend it to other people Anyhow, I'm going to be going down to a hr in Atlanta here. This is february 2023 and I'm going to get some good footage down there and can't wait to do that Might throw this one out there It's kind of a small video in between because I don't have a lot lately I've got other ones to do but every time you're always looking for that master hit and you don't always get it Uh what you think is going to be popular is and what you don't Isn't or is or vice versa or whatever. So anyhow guys, we're going to wrap that up until next time. Catch you on the next one later