 This video is brought to you in part by TrueTechTools. Quality tools, essential support. This will probably be an easy one, but just in case. Let's go ahead and record it. Go ahead and turn it up. It's a commercial application, but residential furnace. I mean, they said it won't come on. Nothing's warm. Let's see what we got power in out here. We do have power. No worky worky with R2W. Let's try R2G. Air conditioner's coming on, and there goes the blower. Well, this little control here controls the stand, but if the stand's not running, you won't know anything's happening. So let's go ahead and check see if we got power up here. We do not have power coming out to the draft motor. It's really seeming like that board's bad, because that's really the only thing that controls it. The spark ignition there, which is some little control, which this is what the furnaces used to be like back in my day. Used to keep those things on the truck. We can jump the draft motor to 120 volts to make sure the draft motor works. We could also jump power straight to the control ignition to make sure the ignition works. Okay, let's see if we can follow that draft motor down to here. This looks like it comes down to here, and DI should be draft induced. Should be able to hook that right on with power. This right here is the transformer. Oh, did you hear that try to kick on? Yeah, I think we got a bad board. Okay, that's jumping draft motor. So the draft motor works. Let's and just try to click. Okay, so what's going on here now? You got to use your ears. This is the 24 volts right here. The door switch is kind of jam shut there. So notice when we unplug it, you can hear the relay and I think you're also hearing the draft motor relay. Hear that click right there? That is most likely one of these three relays. I'm going to tell you that that's likely your problem. Now if you want to know if your ignition is any good, we can go ahead and jump R over to 24 volts. And I only am doing this for testing, only for testing. Otherwise, this would be dangerous. There it is. It's trying to start. Hear it? So everything works. We've got us a bad draft board there. So we're going to need to go get one because I don't have one of those on the truck. I haven't seen those or had to use one of those for a while now. But let's look this heat exchanger over really good because this thing is old. It is a 1993. I was a junior in high school. Let's make sure our pressure switch isn't stopping us because if the pressure switch is acting up that could also stop our draft motor from running. Let's see if that makes any difference. It does not appear to be. What I'm getting at here is you don't always have to use your meter. One of the guys that taught me in the beginning days showed me how you could get away with using a jumper cable for pretty much everything if you didn't have your meter. So we are at 14 volts AC there, so it's technically open. The limit switches, if they were tripped, they'd be running the blower. This thing is in really poor condition. Make sure all of our wires here are good to go. They seem to be. Yep, because like I said, we jumped R to W first thing. I can get a transformer kick on just one more time just to be certain. It's going to get that on there, that on there. Yeah, I'm hearing a click and it's just nothing's happening. So it's definitely something that is relays. Well, I got to call and see if we can find one. I just found a control board at my supply house. Now for those that don't agree with the way I did it, here's the reason why I did do it the way I did it. No sense in going and getting that board, driving across town to get it, if you've got a bad draft motor. The draft motor would be one more thing you'd have to either go back and get or might be enough for the customer to decide they want to replace the unit. I checked down here in the heat exchanger area, nothing in the primary. I looked through the limit switch there in the middle, didn't see anything there. So everything seems to be working pretty fine as far as that. We made sure the ignition control works so we know that's working. There's really not a whole lot else to go wrong on it. So this is the best way, I think, to go through it to make sure that everything's going to work when we get back. Maybe that way you're not wasting a lot of time on something that's going to need more parts or they may decide not to repair it at all. And to me, that's just a better investment in your time. Got the board in here. Let's see if it works. Oh, look at that. I went ahead and checked the flame sensor and everything's good on that. I got it cleaned up. I also adjusted the blower so that it runs a little bit longer when it shuts off. Got a look at the board here. See if we've got some issues here. For a while it smells. That's a short one, guys. All right, so we've got to see the horse right there. We're heading to a new heat call here. It's in a business. Let's go take a look and see what's going on. It's right here. All right. It was making some squealing noises. It's so damp down here. I think it just got rusty. Gotcha. And the motor's not working. Yeah, so not blowing. Okay, we'll take a look. See what we got. The last time I looked, the pilot was still on. Okay. Time to begin with the yellow container and put it out here somewhere. Back in here. It probably didn't breathe real well with that dirty old filter. So you said the blower stopped running. Is what you thought happened? It wouldn't start back up. Yeah, I think it's a blower. It spins freely. Let's see if this blower motor runs on this fine piece of machine right here. We'll give it a G signal and see if it brings on the blower here. Let's see if that capacitor's any good. That's kind of hodgepodge it in there. It's dead there. It's 9.8, so chances are it's probably a 10. So the capacitor's probably fine. Might be the start windings. Let's see how the draft motor runs because that could be what's failing, what they were hearing. This thing's definitely getting kind of old. You surprised the heat exchange ring gone? Ah, there's your problem. It won't turn. So, okay, we're good. There's no rain people around. Oh goodness gracious, that thing is hotter than blue blazes. Chances are this thing's bad. Let's see if we get that pride off there. She does not want to spend freely at all. Man, that heat is transferred through that ending to the fan blades. We could probably grease it up and get them going if there's not one in town. I don't know if they kind of had this old thing in stock. The flue pipe has had better days too. I mean, it's not leaking through yet, but it looks like it's reduced and hopefully goes to a chimney. This is a really old building. This thing, make sure it's not bad where I can't see it. I threw the top there and just kind of wanted to give it a good look. It, thing's a 1992. I mean, they need a new one, but parts available and it's only about 200 and some bucks, so we'll go ahead and go get it. But I want to make sure it wasn't going to be unsafe. I've been real happy with this camera. It's got split view, so it's got front and side cameras. And it's been a really good one so far. And the battery lasts forever. It's got a 5,000 millionth power battery on it. It's a lot of it listed down there in my section of tools, along with all the other tools that I use. So we're going to go ahead and go down through here through the burners and look in there. Gives me a chance to see what all is in there because you can't see. Yeah, look at that. You just can't see everything from the burner area. That's why I wanted to kind of go in there and look around, make sure it's safe. I'm going to do a little better inspection once I put this down. Yeah, don't die on the way down. Yeah, I feel you. After I turn 60 over, they want the pot. I'm not even there and it's already doing it for me. Okay, we got the new filter in there. We've got a new draft motor here, brand spanking new for this old beast. It's probably rotted off. Yep, rotted. Okay, we was able to take that pilot tube off of there and then just back out. There was a little stub there. Got on here with the linesman. Took her right out, right out of here. Got her all in place, got all the screws in there, got her labeled up, had to chop off a little bit of this rotten out pressure tube. It gets really hot and tends to fall apart. Got everything back together down there. Pilots pretty clean. It surprisingly stayed in there. I was able to get a screw in there. As far as what you can get it, just have to be really careful. We'll go back and forth a few times at the impact or drill it out, whichever. So got that ready there. Let's go ahead and turn this thing on. That thermostat was new when I first started, back in the mid early, mid 90s. A little disturbance there in the flame, but there's air gaps. You can see the cop webs. That should be fine. What I like to do is kill it a couple times and see if it takes the pilot out. It's a little trick right here. I hope you make sure that you're not going to lose your pilot after you leave. I'm going to go grab my blower and blow this thing out. It's kind of dirty back here. You can kind of see everything back. Here's kind of dirty. So we got our time set, our day set. Checked the programming, which these are older dirt, but man, they freaking was so much easier to do than the other ones. So if you wanted to know what your program was, Monday through Friday, wake, sleep, nothing in between. If you didn't want something in between, you just held it for so long it would erase it and boom, simple as that. So we're on heat, which this usually had a switch. This must be the commercial version because there was a, I thought a heat cool switch on here wasn't there. Yeah, I'm pretty sure. Good grief. I don't remember. I thought there was a switch down here usually. Yeah, it's set for 70 until tonight around 10 and then I'll go back. So it's on heat. Other than that, guys, it's going to wrap this one up. If you enjoyed the video, you want to see more like it, make sure you give it a thumbs up. Until next time, later.