 This video is brought to you in part by TrueTech Tools quality tools essential support Well guys guess what Got ready to come here to eat and then the next thing I know it seems a little cool in the house So I go downstairs and the ECM blower motor on my Lennox furnace, which is from 2002 It's been running non-stop since 2002 2003 when we moved in the house when I build it It's that they're kicking on kicking off We're gonna go take a look at it and see if we can make it work. All right, and we're home Let's go take a look at this see what we got if I need to I got an old pulse pulse blower here the PPSC motor We can make that work, but I'm always kind of preparing for things like this so I literally got a Constant torque motor here out of an EL 195 because I used to work for an a Lennox dealer I think I lost one speed out of it. I'm cheap. So it's not what you make. It's what you spend And so we can make this work if we need to but I've got an idea All right, so what we have here is a Lennox g26 and What I've done in the past is Whenever I had an ECM motor I usually kept that just in case, you know the motor ticket dump and I've been keeping the spare Control modules because usually you lose the MOV metal oxide varistor But I don't believe I happened with this one now this one here I think is still good and this is out of a Lennox and I'm pretty sure I had that thing set in there for a while Because you know we do warranty and if they didn't ask for it back. I just keep it and so This furnace what's interesting about it is It's two-stage But the way they did is this is a series four And it is O2 So it's still mint condition. I wasn't even using it because see the way I've got mine set up I've got a heat pump here Got my ultraviolet light here, and then I actually added let electric strips to it So if I want these are off right now like I said Lennox dealer. That's what it was before We also did was dual we did a carrier to so anyhow That's what I ran most the time was a heat pump when LP gas which is what I'm on some in the country I didn't want to spend the money on the propane So I would sometimes use the electric strips as you know, there's cheaper and I built me a switch in here gas heat versus electric heat and I just did multiple Different windings of wiring here so I could do one or the other So if I wasn't home and she needed to switch it it actually would direct path from the electric elements to W on the board so what this board here did is They didn't put the integrated ECM part controller in this board. They did it on the next version after it So I literally got an ECM controller right here, and then here's my two-stage board. Well, what I end up doing I have a tester here and go ahead and turn it on and You can literally kick on the tester here and if blower comes on sort of See it takes off and it stops. See it's starting to speed up And it slows down. So that's what's going on. It doesn't matter whether I Do heat speed or whatever I've got I originally had just the single button one and I bought this one recently Sometimes it works for different speeds, which is kind of neat if you got one of the older motors But it's it's not doing much for me. So it's not my controller here, which is how you'd normally determine that So what I'm curious of we go ahead and yank this out Can we swap this now? I've tried switching these before in the past and if they're not programmed for that motor They will not work. Let's see what happens. Let's go ahead and kill power See the auxiliary heat's wanting to come on because the thermostat's saying hey, it's too cold in here Ain't nothing worse than getting ready to leave to go do something finally and you're on call anyway, and then this crap happens right angle tool to the rescue That gets it loose We have to unhook our power to our ultraviolet bulb. There you go And of course you get all this wiring crap in the way go ahead and unhook the Module that I use for testing Unhook the high voltage. This is why I don't do residential videos because it's usually the same stupid crap It's usually airflow motor or igniter. Can't get this up here Yeah, they kind of screwed up when they did this here They didn't make it so it was very easy to Get out of that. You had two three eight screws in there. Actually, no that's got to be overly secured and Then they put the islet right there. This is this is engineering at its best. Let's put the track For the blower right in line with our main wires here even though we had plenty of room We could have moved it over Nope, let's not do a quick disconnect with a molex plug. Let's put it right in the way God, I love them God bless you Lennox. You guys always didn't make a lot of jobs for us They used to be good furnaces And then they just went to piss after that. This was their best furnace at the time Okay, there's that Now we can get it out a little easier Get the wires out of the way Not bad shape hasn't been nothing done to that for 20 years What's mean green to make a pulse run mean? The ground wire Whatever, so let's find out if we can get away with taking just that off and replacing that We'll see if it works. I don't know if it will it may it may not Since they're both Lennox maybe maybe doubt it Might be able to make it work, but let's try and see Now this is high voltage inside here these capacitors can Store voltage after you kill power to it. So you're not supposed to get in here and play Which these videos are not instructional videos on how to do it for the homeowner There's my electronics. So we got it off there We went through and check resistance between all the individual legs and we came out to 10.7 between each individual leg and all different Formats whether it be the first two the outside two and the two in the middle Or the one in the middle in the outside corner nothing to ground. So we know that our motor here is fine So it's something in the electronics. I did not see anything in here damage nothing at all. I don't see anything burnt Nothing smells burnt. They're not identical. They are close. They both have the capacitors 1000 micro farad That's a 1000 micro farad The choke you got two capacitors there in the MOV. So it's pretty much the same one We're going to go ahead and plug it in. We'll see if it works. It's 16 pins still This is a 2.3 2.3 2.3 and 2.5. Maybe it was 2.5 that acted stupid Trying to remember what's this one here half horse g e we're out nothing at this point half horse g e 2008 so it's a little newer. I don't remember actually This might actually bad. I think I wrote Yeah, I think I wrote B on there for bad. Maybe I don't remember. We'll try to see what happens We've got everything wired back up. We got the power here You know once again, don't do it like I'm doing it got my box plugged in We've got the high voltage coming into here May work may not work Got power on let's see what happens with continuous fan Well, that's a good sign blower actually works. I can hear it like Revan There's he that's a good sign Cool So as long as that transmitting Programmer there that tells it the speed to run at works Will be all right Maybe back on again See if pita pita pulse width. I think how to use pulse width before With my other one and it don't work with this one cool It's funny how heat was faster than cool Let's go ahead and unplug the controller got it out of there. Literally. It's loose yet Now I will tell you just got a freaking call for an ice machine. It's eight 843 So I don't know if that's gonna happen tonight May have to wait till tomorrow because I don't see a reason for ice machine this late at night Let's see if this thing will bring on the fan It's controlling it Kind of blinking blink so we got going on here one two three four five So we're 500 to 450 ish area That's about what this runs on low feels like it's kind of do do do do do do I don't know if it's because it's out of the furnace or what see what the amp draw is on it point Four amps and it's not fluctuating that I can see I'll tell you what guys. I think I'm gonna get lucky. Let's go ahead and put this back together And see what happens. We're gonna go ahead and pull this blower wheel out and clean it That's all the bigger. This motor is this thing literally I've been running this since I think we moved in in march of 2003 So this thing literally is 20 years old this month no up and down play at all And really no left or right play it does feel like or sound like it might have a little bit of Baring noise. I can't really tell And get this thing washed out We went ahead and check the secondary heat exchanger made sure there was nothing packed into that Swap it all out since I have the sweeper down here And washed out the housing too while I was at it. We got our Wire protector there back in place got my UV bulb hooked back up draft motor spins up Make sure it's working blower's coming on chances are as soon as the thermostat finds its Place it's going to probably bring on the auxiliary heat because we're probably below 70 degrees And uh, then I gotta go run that call. So the draft motor just came on Igniter should come on here in a second. There it goes goes gas We have kaboom All right blower's on it's running. Let's see what kind of cfm we're running here on that You know, this will probably be the last Linux I buy I wanted to go to one of the carrier infinity Heat pumps potentially And I would had a good a matching air handler for it. This one here is obviously getting towards its end and uh So it's just uh becoming more of a reality But we have heat again and we have a blower. So everything's looking good new Like I said, the blower wheels cleaned up got everything swept out She'll look too bad going on 20 years old if that motor takes a dump. We got that one there The motors pretty much are all the same. They're all three phase dc motors electronics is the only thing that usually goes out on them Like I said, this one technically it's just the brains are squiggled power module technically appears to be all right on it Unfortunately, we'll just keep on to that and I'll just leave it here with it. It's about it All right, if you guys enjoyed the video and you want to see more like it check them out other ones out Until next time we'll catch you on the next one later