Noise Complaint Leads to A Low Voltage Problem That Can Kill The Compressor!

Here's another one. Oh, that's pretty bad. Okay, I have looked at that video like three, four, five, six different times, and I swear it looks like it's hitting something. That's not exactly what I found. I mean, it may have been, and I may have absentmindedly fixed it, but I fixed a whole other problem that was a serious problem that possibly could have been doing that. Stay tuned. I think y'all may have heard what I heard. This motor sounded absolutely terrible. Right now, I am just making sure we don't have power. My screw's here in this big old meter. I know this is a large meter, but it does everything that I could ask it to do. All right, let's see if we got any power. Holy smokes, look at that contactor. No power. Wow. I am looking at this, which looks like an aftermarket time delay, and the burnt contactor right there. That might be my problem that time delay and that burnt contactor. Right now let's look at the fan. Now that contactor and that time delay is my number one concern right now. I want to make sure there's not something bad wrong in here. There's only really one reason to. I don't know why you would add a time delay to a board like that. The board's going to have have its own time delay and the thermostat is going to have a time delay. Let's see, two, three. I'm going to grab a hold of the shaft, hold it still, and try to turn it. Or at least that was the intention. Open that up a little bit more. Alright, so get a good hold of the shaft. Better than what I got. Get a good hold of the shaft. And what I'm checking for is to see if the hub is loose. Or if the blades, this actual structure here, has broken free from the hub. And that little test tells me that neither of those are going on. I don't see anywhere. where anything is hitting this would be my only possibility and i don't really see that there is this that looks a little bit bent but that blade spins right about here i don't see where it's hitting anything y'all hold on that's loud it's loud to me too you see that blade's not hitting anything nothing spins freely nothing and i'll show you it is nowhere near these edges it is not hitting anything. that may have been damaged before. i'm gonna have to redo it. take this apart and redo it. but um yeah there's nothing wrong. that is not hitting anything. i know that that contactor is fried. tell you what. i need to check something with my meter to verify that this time delay is causing a problem. we know the contactor is a problem but i want to possibly show that this is causing the problem. So I need to turn it on to do that. Okay because of this fence being here this is a little bit difficult. I think this is common and I'm gonna test right here. I do not have a call right now. Let me see something. Okay that's what I was trying to show you that when I push in that contactor it seems to do okay. So I want to measure. I want to catch that faulting. I'm not like I said I'm not even real sure why it's there. They have a digital thermostat on the wall. I'm going to yank that out. Okay, so what we're looking for now is possibly when this calls for 24 volts and if that faults, we should show this faults, we should show a voltage come across here. Let's try it. There's something I want you to see right now. I have five volts between these two points right here and I shouldn't have anything. Now, when I first started it up, I heard a noise that sounded horrible, but came on and started running, and I'm already reading a 5-volt difference. That was almost instantaneous, and I'm not sure if you caught it, but for a brief second, that went to 26 volts. That means that when I touched to the contactor, this opened up for just a brief second and caused that contactor to jump. See if we can do it again. I'm going to try to do it without burning up the compressor. Okay, there should be no, I don't think there's any reason why there should be any voltage between these two leads where I have the alligator clips, right here and right here, but there is. We're going to do this again. Watch the voltage right here. Okay, we're going to do something else. Okay, now we are not reading the voltage. We are bypassing, I have a, okay, we are bypassing. this time delay this is a time delay that breaks for like three minutes after the system shuts off so we have just bypassed it it's not doing it anymore and yes we saw a digital thermostat on the wall that needs to come out and this contactor needs to be replaced i am going to walk you through what it's like doing it a quote with your phone right here with um Jobber Manual labor is already right there at the top. I'm going to do 1.5 and here, if y'all will watch, if I can do it, found condenser fan motor and contactor making an arcing noise in the, not exactly what I found. Customer showed me a video of the air conditioner making an odd noise. After inspecting the condenser fan motor, which seemed to be kind of going slow in the video. I found the contactor to be very burnt and then upon further inspection found the time delay to be faulty. The estimate is to bypass the time delay and replace the contactor and then make sure that there is a time delay on the thermostat. So what we're going to do is rewrite that as professional. I'll read to you the professional rewrite on this. Okay, so this is my whole repair labor. Of course I can change all that if I want. Contactor and that's it. That's why I'm going to give them no power. I still haven't quite figured out why that was put in there and I have this crazy feeling that I'm going to figure it out once it's gone. I don't have a lot of space that's why y'all see me being careful with where I cut. Those time delays can really help out a system when it's needed but they can also cause that If we can accomplish this through the thermostat, that would be much better. We'll go ahead and remove this low voltage. Put this over here. Not exactly the easiest place to work. See that? You can't even get on that lug very well. It looks like I have a yellow and a black on the bottom. I'm actually going to tie those two together because it's going to be easier to do this. It looks like the side with the break in it is on the left, and that is our common. I'm going to tie those two together. That way, I know where they go on the bottom. So now I can undo my contactor. The good thing about this one, all the blacks and all the yellows go together. Blacks on the left, where the brake is, and I guess you would call this our shunt. That's on the right. I prefer to use 40 amp contactors because they are like that. They have these lugs on either end. Install it like that and we'll be set. In this case, I am actually, except for a few wires, I'm doing the top of it one wire at a time. Like shooting a basketball goal from mid-court. I couldn't even see that thing. Okay, let's go ahead and do these. Remember when we said black was going to be on the left? Yellow on the right. Okay, now these we're going to do one at a time. I might lift that little piece of the spade connector on there. The last time this contactor was replaced. I'll tighten that up a little bit more in a second. This is a lot easier to do when it's bolted down. Oh, I just lost my wire nut right here. I'm going to tighten it. That goes... And this one over here, I'm gonna try to move these over to the side like they were. Okay it looks like that might be the end of our high voltage wires. A low voltage wire that is kind of hard to get to over there. Like that. So something we need to review is black, black, black, yellow, yellow, yellow. Excuse me there's only two yellows. That's this other one right here. Yellow and yellow are on the same side. Common is what we're breaking. Power up to it and we'll be done with this one. And yes, as a greenhorn, I many times left these power wires disconnected by mistake. Okay, this ought to come right on. I'm going to go turn on the power. You're going to hear it. If there's a time delay already involved, it's not going to come on right away. Okay, let's make sure we go to the thermostat, look it up, and program in a We're in a time delay, that's all we need. Welcome to our AC unit. We're going to put this on. Y'all see that flashing light now. It's going to wait two minutes before the compressor comes on. Let's go verify. We are waiting for the time delay on the thermostat because I just turned the cooling back on and there goes the end of my time delay. If y'all like videos like this give me a like and subscribe. I've got some links down in the description for ACIQ, Jobber, a merchandise store that I'm trying to start. It's just getting started and there's a store Catch y'all in the next one.