AC Line Freezing Up? Here is WHY!

today's video will be working on this desi obviously you can see here that the line is frozen solid see the systems running right now so we want to do is we want to allow this to fall out so we're gonna go ahead and pull our disconnect and allow this line to fall out while we troubleshoot for the problem the thermostat is set to cool and oil I do have more voltage because my condenser was running you see here this is the evap the evap were frozen as well so right now we're gonna pull our panel or to inspect the filter first day I noticed when I came here is the blower motor was not running the first day I want to check whenever I'm working on my system if I suspect an issue with the blower motor right here is gonna be my fan relay and if you just put your hand over it I can see it's extremely hot that tells me that my relay is sending the signal but for whatever reason my blower motor is not responding you can see here it's about 101 outside and that's taking the temperature off of the asphalt here I'm just taking a temperature off with my relay and you can see the surface temperature right now to the touch is 116 we're going to open the panel I was able to speak with the prospect and there was work done prior to this you can see here what they did was they replace the capacitor genuinely when you're dealing with issues relating to your blower motor what happens oftentimes is the first thing the technician is going to do is replace the capacitor now what I always advise to individuals who pursue that well is when you replace the capacitor you may allow to extend the life of your blower motor anywhere from a few hours to a few days to a few months so it's kind of a 50/50 chance when you just replace the capacitor and safety is very important when you're working on the system I did remove my panel so this did disengage my door switch this is actually a safety once you remove your panel this will remove any power to your system or any reason you're unsure or you want that extra step of safety go ahead and remove the 120 volts to your system if you're unsure you can always use your non-contact voltage detector I'm gonna reapply power this is gonna be my non-contact most detector you can see I have incoming power once you remove power you should not have any voltage coming in the next thing I want to do when I'm working on the blower motor once I've removed the power is I want to just put my hands with the squirrel cages and see if I can rotate it and this motor is completely ceased up I can see somebody at some point that it's some type of lubricant it's kind of give it some extra time but this thing is not moving no matter what I do the next thing I want to do is I want to test the incoming voltage to my blower there have been cases where I've inspected the blower motor I've tried to turn the squirrel occasion it moves freely so at this point I just want to make sure that we are getting incoming voltage to our blower motor once the door switch is engaged here I have a multimeter set to volt AC what I'm doing here is if you look at my wires I have my white which is my neutral common and my black that's gonna be my hundred and twenty volt power supply to my blower motor you can see here it ties into the purple and the black and what I did was I traced the wires up here put my multimeter in the prongs you want to obviously make sure that your thermostat is set to the proper settings right now I have the thermostat set to cool and auto on the fan if you are unsure you can go ahead and just put your fan to the on position instead of auto and what I'm going to do right now is I'm going to hit my door switch so you do see 120 volts here at my harness I'll do the same thing here where my wired nuts are and I'm just gonna check for the voltage in there obviously we have one going into our hot one going to the neutral gonna engage my door switch and you can see here that I do have a hundred and twenty volts I have seen guys in the field use their non-contact voltage detector kinda as a quick test so you can see here I do not have power coming in obviously because my door switch is not engaged my door switch man we engaged use electrical tape some guys like to use a magnet the door switch is engaged mr. I do that power the electrical tape disconnect we're 120 volt power supply at this point we're ready to start removing our bull motor we have two screws that secure the frame there's one on each side remove those two screws just simply just slide out with the blower motor the blower is extremely hot so you want to be careful you can see here it's reaching even up to 180 just on the surface touch so be very careful when you're handling the blower motor this is the part that you want to pay attention to again I know a lot of times guys see wires and they say hey I'm just gonna connect the same wires with the same colors but that's not true necessarily especially when dealing with blower motors here you can see we have three wires that are tied in we have two that are cut off from this blower motor you want to do is you want to make notes on what speed each of the wires are useful and what they connect to here when you look at the schematics if you look at the wires that are connected these are my notes right here so from my harness I have orange purple and black the purple is going to be after it goes through my line splice connector on my red harness it comes up as white and is going to be my common or my neutral on my notes I'm going to put a C and that indicates to me that this is the common the orange wire all orange is going to be from my medium low speed so here we put medium low the black wire is going to be from my high speed looking at our schematic the Purple's are common the oranges are medium low and the black is going to be our high speed not to get the proper wiring you want to look here on your blower motor and read the schematics so if you look here you can see the motors still hot you can see the black is going to be from my high speed so here we need to connect our high speed on our new blower motor to the black the orange is going to be our medium low the white is going to be connected to our line which is gonna be our neutral or our common here reading my notes I know that the purple which is the common should be connected to my white here we have purple to white black is gonna be our high black to black is our orange are just gonna be medium low medium low now again the reason I point this out is because there are times where you get different type or styles of blower motors and the wires are completely different you may have an orange wire on your new blower motor but you may control a completely different speed speed is always gonna be for your AC and your medium a low speed is gonna be for your heater now we're ready to remove our blower motor from the squirrel cage and reassemble our new one so here we're going to remove our screws that's secured to the outer case this is going to be our torsion kit it's going to remove our three screws including our ground you everybody loosen our lock nut and secures to our shaft from older you don't have to take the screw all the way out you just want to make sure remove the capacitor did pull right out here I have a degreaser just gonna spray this in there and then I'll hold it down some guys kind of skip this step slowly up to you because see all the dirt and corrosion is coming out of there goal isn't to make our blower our squirrel-cage shiny the goal is to remove any possibility of contaminating the new motor with dust and debris are a few things that you want to make sure when you're purchasing your new motor and installing your new one you want to make sure on your new motor that you get the same horsepower the same voltage and you also want to pay attention to your amperage also want to make sure that your RPM matches your new motor want to keep in mind that when you purchase your new blower motor it does not come with a capacitor so you're gonna have to purchase a capacitor separately always recommend when you do put a new blower motor or a condenser fan motor you always want to put a new capacitor as well we're also going to have to replace our motor torsion mount old motor they were actually attached to the motor itself on the new ones we're going to have to add it make sure you put your gaskets in the proper positions in all three you want to make sure these go in because this will help with reducing any vibration of your new motor just slide it down and then we'll secure it to the motor we're gonna tighten down our torsion kit we make any connections we're gonna go ahead and drive fit our motor to our squirrel cage on this specific motor we are gonna have to cut down the ends of these rods this is just to ensure that we have enough clearance once we put the new squirrel cage on we don't want any restrictions allowing it to move freely and here I use my grinder to cut the rods right off now we're gonna dry fit our motor don't use a screw driver don't use your drill just want to use our fingers just to make sure everything properly fits the reason you want to use your finger is because I have seen situations where a drill or screwdriver was used and you end up stripping the screw also keep in mind this is going to be the top of the base when I reconnect it so here make sure my wires are here at the bottom I don't really like wires dangling here on the top also keep in mind is gonna be the top of the base when I reconnect it so here I want to make sure my wires are here at the bottom I don't really like wires dangling here on the top now I'll use my screwdriver to fasten and tighten my connection we want to make sure that we connect our ground wire wires for the capacitor pretty long so I just like to zip-tie it yeah I'm gonna take the rubber guard off of my old motor and I'm gonna use it for my new capacitor don't have it a lot of these new motors the lines already insulated just make sure that when you connect it that you slide it all the way down I'm gonna secure my new capacitor now we're going to connect our squirrel cage to our shaft to things you want to keep in mind number one if you look at the shaft there's a flat part right here you can see the rest is oval if you get a top view and you can see that this part is flat you always want to make sure when you tighten your squirrel cage that you take your lock screw and you tighten it directly to the flat part if you don't do that and you tighten it to the oval eventually it'll come loose and you'll cause more problems so make sure you secure it to the flat portion of the shaft of your motor Kinley you want to make sure that you adjust your squirrel cage nice and evenly you don't want it too up because it'll scrape against the frame you don't want to down to the scraper against the motor so you want to go ahead and just put it right in between here tighten it down nice and secure you can see I'm just rotating it manually just to make sure that we don't have any issues with this scraping but now I'm going to give it a nice torque and tighten it down you want it nice and tight you don't want this thing coming out now here based off the schematic of my new wires you can see my yellow is going to be my comment my two Brown are gonna be for my capacitor my black is gonna be for my high-speed my blue is gonna be for my medium speed and my red is gonna be for my low speed so see here we have wires that are here in the back and this is gonna be for rotation so it basically tells you which ones go for counterclockwise and which one is for the clockwise rotation one here is I basically just capped off my red and my blue that's gonna be my medium in my low and then I connected my hot which is my black which is gonna be my high speed and then my yellow which is gonna be my comment or my neutral now this is gonna be a regular three prong cord that I'm using you can see here what I'm gonna do is I just need 120 volt supply to my blower motor I want to make sure it's in the proper rotation before I install it this specific setup you have the filter at the bottom that's the air that's coming in you can see here it tells me the rotation that I need and basically here you want the airflow to push up I'm just gonna plug it in I just want to make sure the rotation is correct I have a piece of paper up there told me to see the rotation here at the shaft I'm gonna unplug it and we'll see it slow down so we do have the proper rotation now I'm just gonna slide in my motor see there's little grooves there that will allow the rolling on the site to slide in and then I'll secure my two screws on the top now that we got it in we're gonna go ahead and secure it you so here we have our harness and we have our orange of purple and I'll black this is our old motor which I crossed out this is my new motor the black is gonna be the high the yellow is gonna be the common and the blue is gonna be the medium black to black that's my high speed orange to blue that's my medium speed go to yellow that's my neutral or my common here I just capped off my red which is gonna be my low speed it's my old filter some would go ahead and replace it see the difference this is gonna allow for more airflow you want to make sure when you install the filter that you install it with the proper airflow so there's gonna be pointing up towards the blower I'm gonna plug my disconnect back in be here the lines already fought out I'm going to reapply about 120 volts or to manually engage the door switch and that should turn the blower on because the thermostat is set to the proper settings this video was the help it was informational please subscribe

Channel: Sam

Views: 965,359

Keywords:

Id: fxtt8TDIxsY

Length: 18min 0sec (1080 seconds)

Published: Fri Jun 14 2019