 This video is brought to you in part by TrueTech Tools. Quality tools, essential support. All right, so we're here to check out an air conditioner and ain't working right. I was up on this roof just recently and the filters are dirty, things like that. So let's get up here. I did notice the thermostat was blank, which means usually the power's not on. So let's climb this really nice roof we got here. Yeah, roof roof, great design. So anyhow, let's get up here and take a look and see what we got. The filters still look bad because I'm waiting to get some of the other parts. But that ain't the problem, I don't believe. It appears we don't have power. See if we got any friends in here. See if we got power at the disconnect here. It's nothing's running, fans not running, nothing, stats dead. So it's pretty obvious that the power's dead. That's why I went ahead and killed it. This has no codes or anything like that to make it brain dead. So let's go ahead and see what we got inside here. So we come across the top here and we are dead. Nothing at all, go to ground right here, nothing. Now let's isolate and let's see if we're shorted to ground. Something bad might've happened. See what we got there on that. See if we can get a good ground. No buzzy buzzy, nothing there, and nothing there. So did somebody shot it off by accident because things aren't labeled well, what's going on? So let's go downstairs, see if we can find the breaker for this and see what's going on. If we get started, I might as well check the belt real quick because like I said, the belts and filters are supposed to be done by the facility here, but they haven't been getting done and they've had quite a few different people. So hopefully this new person will be taking care of that and won't have this problem anymore. So let's check this belt, it's a fairly newer unit. It's a 2020, so shouldn't have too many problems hopefully already. So belt doesn't look too bad. It's got a VFD, looks like it's still hooked up on it. Got wires going to probably the ultraviolet light system that are not hooked up, so that's nice. Needed to take that a little further. What happens is, since the VFD, they probably didn't know where to hook it. Well, they just took it straight to power. That'd been the easiest thing. Anyhow, let's go downstairs and see what we got. Okay, we have one that's tripped here. It tripped again, so I've got the guy going up there to flip the disconnect back on and we'll see if it still trips even with it disconnected. If it does, then we've got wiring issues between here and the unit. All right, so he turned it back off up there. Let's see if it still does it. Uh-oh, it didn't trip. Let's go up on the roof and see what's actually shorted. Might be shorted from winding to winding. It's always something, 2020, two years old, already something shorted out. All right, so we checked the resistance to each individual compressor, half a gnome, nothing to ground, so now we're going up to the motors. Everything here, nothing shorted to ground, so I'm thinking about maybe isolating this and the VFD, because the VFD definitely has a tendency to go bad. So let's isolate that, flip it on and see what happens. The VFD was already bypassed. He was telling me somebody was out here for something. So it's so convenient, they purposely, they almost knew that this was gonna go bad in advance because the factory wired it up so you can just undo it. You know, it's not the drive. I don't think. What do we got going on here? We got some, another black wire going somewhere. That's a little odd, I thought it was like it ain't truly bypassed. Cause here's the wires coming from there. So you got power coming down, black, yeah, there we go. Black's doing its thing over there. Okay, there's this left one dangling here. So we'll just shove this back to the back and pretend it's not bad. I suspect since most of this stuff only is lucky if it carries a one year commercial warranty that's probably out of warranty. And it's probably my opinion, not worth fixing because the cost of that is way more than what you'll ever save. We will just ignore that. I wouldn't think that shot. Let's check these fuses right here and see what we've got. I hate flipping the breaker and having a hundred amp breaker trip. That kind of sucks. Try to go 1.8, 1.7, 1.7. Fuses must be good. Bars to ground. Nothing here to the electrical section. Yeah, it's a heater number. Could have some strip heatster shot to you. That's not enough to just have one set of fuses. Let's have a bunch more of them. I know it has. When you opened that up, I was like, damn. So we're going through your head, nothing to ground but got it there. Nothing there and nothing there. This right there goes over to the disconnect and this comes up to here, which then goes right to this contactor here. This contactor here feeds over to that contactor. And that one there all goes down to the compressors. And I'm sure our fans, just chimmy jangs over to that. So just chain link fence over over. And so one of these is a dirty hen. Problem is we got two fuses blown, but we still tripped the mane. That's kind of bothersome. Let's see what happens if we turned it on. We, we ain't not much. We got it isolated there. Let's see what happens here. Close this back up. See if we got some power. Thanks, John. There's two lights hanging on. That's what I was looking at. Well, we're missing one, two power legs. We're not going to have everything, but if we have at least something, it means we didn't trip the mane. So they tripped it. So we've got something really bad going on. We've isolated that. So the only thing really we got left is either the electric heater elements or the fan. And we got this one. You want to pull that breaker? Yeah. It comes over here. So here's your condenser fan right here. So we know that that's not even pulled in. So that's not it. Now far as the blower. All right, I'm fixing to flip it. That's fine. Yep. So we've got this going up to here, which then is fed to here, and goes over to here, and comes down to here, and goes right to it. So this is wired directly. What I would say is the deal here is that the blower is wired directly to run all the time. That's the only thing it's wired in there, honestly, that would have been energized immediately when we powered it up. So there's all three power legs. Now you can figure that that would have tripped the smaller fuses over here. But these are hard to read. Didn't trip it. No, it's because I got power off. I'll see what it does now. So if we got voltage, nothing. And nothing. Let's see if we've got it over here anymore. Lost it. Nothing. Nothing. Okay, it's all dead. So we've got the blower unconnected. We got the compressors unconnected. Only thing we got left now is the condenser fan. Let's see if it there it's at, which it wasn't even energized, but whatever. That's probably single phase. First power, three horses. RPM, service factor. Give me the freaking voltage. Three phase, that's three phase two. Okay, I'll at least did that in three phase. So we got one more wire here. It's probably hidden some blue goes right there. So there's those. Resetter again. I don't see how that could be, but it's possible. And for those that are wondering, yes, I just checked and it is 2.6 ohms between each one of those legs. So who knows? Let's make sure we actually are getting voltage to the top of this thing. That's cause I got isolated till I flip the thing on. It won't trip. That one's no good. And that one's no good. That one's half ass, okay? Cause it's 0.6. And with these new probes I got, when you short them together, it's usually 0.1. These things are bad ass. American made. Old Joe Sheer got me these. These things, unbelievable, accurate. Super pointy. So not only is that got no power up there, we had no power there. Let me get over to here. The whole thing's feeding all this at 200 amp. So we've got that turned on now. Maybe we have some power. Let's see how that reduces lose. There's 215, 215, and 215. So everything's just wonderful here in the hood. Let's get this thing back together and start over upstairs again. Gotta get some more fuses. All right, so we got three new fuses in there. Don't have anything short of the ground. So we've got three new ones here. Let's go ahead and try and see what happens. Hopefully it don't blow. Let's see. That motor's not spinning. That's great. So that probably didn't help us out a whole lot. Well, you might be dead in the water, bub. That ain't good. That ain't good at all. Does that have a reset on it or anything? Well, the problem is it's not starting. Let's see if we can give it a spin here. Yeah, spin start, we still have the grinders. Yep, you guys might be DOA. And that's so well. All right, guys, this one's a new one. It is, but it ain't. It completely missed it. Do you see anything wrong with that right there? Don't look like it does it. Well, look what happened when you look at this other side. They melted together. I've been tracking, trying to track down a bad wire like a dad. That is some amazing stuff. It is, but it ain't. You know what I'm saying? It's freaking making you believe you got a problem with your motor and you only got a couple seconds to get it done before it blows a damn fuse because all you got is fuses here. You got fuses up there. You got a breaker down there and then another breaker after that. Freaking just making everything more of a pain in the butt. But finally found it. My God. I was setting her to Megan things because I'm like, I can't be losing all my fuses but finally freaking narrowed it down. Holy crap, unbelievable. Plain sight. Now from behind the scenes, what I've been doing is I was just going to test out the compressors to make sure everything was okay. That's when I found the wires here were shorted together. These are 60 amp fuses. That's what it's rated for. That's where it distributes the power from here, then on down to the electric strips. Got the blower hook back up. Got the condenser fan motor hook back up. We're going to go ahead and hit the contact on each one and make sure we're good. But our short was right there at the end of the fuses. I'm sure me and we can the 80s, but I don't have any other ones and we're just going to run it. Let's go ahead and see what we got here. That works. That's good. There goes my compressor. Let's see what our total amp draw here is. 27 amps. 28. We got one more compressor to go yet. So the motor's not bad, which is awesome. That makes it a lot easier. Just don't like the way that is. That's kind of chimsy. All right, all, everything's running. Get the door on. Get that on. Running 44. 44, 46. So we are good to go. All right, that one there was a little bit of a pain in the butt. You get hot like that and you're up on the roof. You kind of miss things, but honestly, that was a really hard one to see unless you're staring for it. Two-year-old unit, you shouldn't have to worry about wires melding together. In my opinion, the factor didn't choose the correct gauge wire. They should have never melted down like that and melted together. So the insulation, theoretically, was not probably rated high enough. And then when they tied them together, it just caused the heat to bunch together. That's why a lot of times THN wire is rated for more amperage than what a Romex wire is because the wire's got space in between it for air. Same thing with electrical wires up in the air. They handle more power with the smaller gauge wire because the air actually keeps it cool. So, you know, just kind of goes along with that theory. So pretty simple one, but not as simple, you know? It's one of those things you gotta keep your eyes open and be coherent. Anyhow, that wraps that one up guys. We're gonna go on to the next video. Till next time, make sure you check us out on Facebook and Instagram. And until next time, we'll catch you on the next one. Later.