My hope is every technician reading this understands that the cardinal rule of removing a motor is to never use any of the following methods: Use a hammer/wrench/blunt object to beat the shaft out of the assembly. You want to cut the wires going to the motor, cut close to the motor, so that you have as much wire left going back to the control as possible. The motor has a bracket that will be there fitted with the motor. Remove the bolts. My hope is every technician reading this understands that the cardinal rule of removing a motor is to never use any of the following methods: Any of the above-mentioned sins can result in expensive problems. Furnace Blower Motor Replacement and Cost, Furnace Blower Motor Reset Button Location, Trane XR80 Blinking Red Light – Furnace Troubleshooting, Best Gas Furnace (Reviews & Buying Guide), Amana Model Number – Location & How to Decode, Proper Cleaning Methods – What You Need to Know About Air Duct Cleaning, Amana Furnace Problems – Error Codes & Troubleshooting Guide, direction of rotation (it is best to get a reversible one). 3. I’ve seen a lot of guys recently who reach for the motor puller tool first thing when attempting to remove a blower motor from a wheel/fan blade. Installing a furnace blower motor is not a very easy task, but it is not an impossible one either. A single-speed blower motor costs around $450 to replace while a variable-speed motor costs $600+. A failing blower motor will not able to supply warm air throughout the home. If you are one of them, call an HVAC professional near you for a complete furnace troubleshooting and repair! Check the belt that connects the fan to the blower motor for cracks and other wear and tear. Usually a gentle … Guess what…. But you need that bracket for the new motor … Remove the panel covering the blower motor on your furnace. Adjusting the pulley on the blower driver motor lets you increase or decrease the blower speed. It's a frustrating experience to turn on your furnace, only to discover no heat comes through the vents. In most cases, when you have an issue with your furnace motor blower, it’s because the motor overheated for some reason. Blower Assembly Removal. How to Troubleshoot Home Furnace Blower Problems. If the technician is successful in removing the motor that way, they often find it more difficult to get the motor shaft back inside the bore of the wheel.Â. You could also have major dust-build up on the motor that can lead to some problems. However, if its motor burns out, or it stops functioning for some other reason, it is fairly simple to replace the furnace fan and motor yourself. Venom Pack Condenser Cleaner is a high foaming pure concentrate liquid designed to tackle the toughest soils. Tighten bolts on sides of hub puller until it grips the shaft firmly. If you purchase those items through my links I will earn a commission. For a video on this method, we shared a post by Brad Hicks earlier this year of him demonstrating how it’s done! This step by step guide will help you through the process on how to replace furnace blower motor. Take the motor unit out. The debris can get stuck and make things even more difficult, and sandpaper that is saturated in WD-40 doesn’t do much good. Have been in the heating and air conditioning (HVAC) industry for over 20 years. Step 3: Adjust the Pulley on the Blower Drive Motor . When working with a furnace blower motor, it is extremely important that you turn off power to the blower motor using the circuit breaker, as well as turning off your furnace while you are working on the blower. These opposing forces can significantly bulge the motor shaft. If this … Viper Condensate Pan and Drain Treatment is a sprayable gel. On the back side of the motor, loosen screws and capacitor leads. © 2017 HVAC School All Rights Reserved. First, disconnect fan motor wiring harness connector. Remove the panel covering the blower motor on your furnace. Slide motor and its housing back into furnace and secure in place with bolts. The air that is heated by your furnace or cooled by your AC unit moves through your home until each room reaches its desired temperature. Having the right HVAC system for your home makes all the difference in how comfortable your home is, how much money you spend on energy bills and how hassle free your system is. I’ve seen a lot of guys recently who reach for the motor puller tool first thing when attempting to remove a blower motor from a wheel/fan blade. In this case you need to replace furnace blower motor.. The noise of a furnace blower motor is usually high pitched, even when the blower is on, and can cause people to be extremely irritated by it. How Furnace Blower Motors Work The blower motor in your HVAC system blows the heated or cooled air through the vents in your home. Derived from refrigeration grade lubricants. (Optional) Slightly push the wheel down the shaft to sand the portion of the shaft that was previously unreachable, which may have a lip that needs to be sanded down. One drop of Nylog on your rubber hose gaskets prior to attaching your core tools, hoses or vacuum gauge will assure that things do not bind or leak during evacuation. Once you cut the power, you can remove the cover of your furnace to get access to the control board. Refer to your owner’s manual to find out exactly what the pulley and other applicable parts look like. Step 1 - Turn Off the Power. The furnace blower motor replacement cost by hvac technician will costs several hundred dollars. Daily Heating and Air Conditioning Copyright © 2021. Please note the two things that must be completed before using a motor puller: Sand the motor shaft until shiny and smooth. The main issue with using a motor puller for every single motor is its tendency to bulge out the shaft. Shut off the electrical power supply to the blower motor. Turn off power to the furnace at the service panel. Flip breakers inside furnace OFF (if applicable). If you replace furnace blower motor without fixing the above issues, you’ll continue running into the same problems. On average nationwide, a furnace blower motor replacement costs $400-$600, including parts and labor. Step 1: Turn OFF power to furnace at service panel breaker box. Find out more about the Innovative NAVAC line of Vacuum Pumps. The air conditioner blower motor or furnace blower motor is one of the main major components that make up, and is necessary for, the function of performing as a blower to circulate and produce heated or cooled air around the space and environment that is being conditioned. Blower Removal. Take the motor out of the furnace. Clean around the oil caps and remove the caps. Don't over-lubricate Some older furnaces have two motor bearings and two blower shaft bearings that require annual oiling. It may be a disruption with the electric motor. There are times when you will need to install a new motor for your furnace. To remove the panel, you may have to loosen the screws that hold the panel in place or take the panel off its supporting hinges. Plus, when you order through my link, it helps me to continue to offer you lots of free stuff. The blower motor is the part of your HVAC system that uses the most energy, so it may very well be the culprit if you see a significant rise in your utility bills. It coats the pan, p-trap and drain piping with a lubricative film to improve flow and prevent future soil adhesion. Use channel locks on … If applicable, you should ensure the motors run capacitor is discharged by placing a screwdriver with an insulated handle across the terminals. Those are steps a technician needs to do before using a motor puller, yet 90% of the time, those steps are all that’s needed to do the job.Â. Loosen the set screw next to the motor shaft. Replacing a furnace blower motor is a jobs that many homeowner wouldn’t normally want to do. You can fix this problem by tightening or replacing the screw, or changing the blower wheel all in all. If you have a serviceable blower motor, it has one or two oil ports. Use channel locks of set screws. To clean the blower assembly, you will most likely have to remove the whole front panel, even if your furnace has an access door for cleaning the filter. Carefully pull the blower motor assembly … The blower motor is typically hidden behind the furnace's protective outside cover; it resembles a small barrel on its side with three wires extending from its housing. Voila! PURE CONCENTRATE COIL CLEANER Gravity is your friend. Disconnect motor wires from main unit. Loosen the set screw next to the motor shaft. I have a Bryant 373LAV036050AGJA Series G Horizontal downdraft gas furnace. Slide the fan unit out of the furnace. Cut the wires going into the motor, as close to the motor as possible. It can even wake you from a deep sleep in the middle of the night. In fact, I oftentimes am able to negotiate a lower rate (or bonuses) not available elsewhere. Quick, accurate flaring equipped with high-performance, large capacity lithium battery, adjustable speed control and quick-connect, it makes flaring easy and enjoyable, while guaranteeing accurate and consistent flaring. If the blower motor will never run at all, you should first confirm that the motor is receiving power. Motors eventually get worn out and should be replaced. Remove the bolts securing the blower motor to the furnace's main assembly with a wrench. Important steps in furnace blower motor replacement is selecting the correct replacement. If it is, then it’s likely the motor has burned out. Step 1 Turn off the circuit breaker to your furnace. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). Apply two to three drops of lightweight machine oil and replace the caps. Learn how your comment data is processed. In this case, cleaning the furnace may fix the problem. The cooling fan is toast and the blower wheel is near death although the motor itself is fine on the inducer motor… Most blower fans are of the "squirrel cage" variety; each blade needs to be cleaned completely for optimum efficiency. My hope is every technician reading this understands that the cardinal rule of removing a motor is to, Use a hammer/wrench/blunt object to beat the shaft out of the assembly. Replacing a furnace blower motor is a task that many would not want to take up, believing it is a job for the professionals. Lubricating a furnace draft inducer blower also includes the motor shaft where it enters the bearing collar of the blower wheel. Let the motor fall out of the assembly. You can buy the new motor from a furnace repair shop or you can search online and buy it. DISCLOSURE: I may be an affiliate for products that I recommend. With more than 20 years experience in Heating and Air Conditioning System. Carefully move the motor out of the housing. Do not cut any other wires in the compartment. Unscrew hub puller until it can fit over the motor shaft. Most older furnace blower motor can be oiled to reduce the noise, but most new furnace do not allow this. You need to turn off the power at the circuit breaker and not just by moving the thermostat down. Motor pullers work by clamping down on a hub and then twisting a small shaft against the motor shaft in order to push/pull the motor/wheel away from each other. The blower motor is a vital component in your furnace system and you’ll want to be sure it’s in ideal performance. After opening the access door to the blower motor compartment they will disconnect the wiring, remove the fasteners securing the blower assembly, and remove it from the compartment. We helped hundreds of homeowners to find the proper heating and air conditioning solutions. The blower fan motor is normally supported on rails near the bottom of the furnace. Replacing a bad furnace blower motor will brings back your system’s functionality and keep your home comfort. Here is what you should look for: This is step by step guide on how to replace furnace blower motor properly and save. Turn furnace/fan switches inside the furnace to OFF and turn the thermostat to OFF. VENOM PACK CONDENSER The noise of a furnace blower motor can also be extremely loud, so you may not even want to turn it on while you are trying to sleep, or it can easily wake the other people in your house. Use an old toothbrush to do the job. Go to the furnace and remove the service panel from the blower compartment. The slow dissolving enzyme gel will outperform and outlast conventional tablets and strips. tool when needed, but that shouldn’t be the go-to method of removing a motor. Motor puller tools are an awesome. Unscrew hub puller until it can fit over the motor shaft. You will not pay more when buying a product through my link. However, this is a job you can do yourself, provided you have the right tools. Clean the fan blades. Loosen the set screw (but don’t remove it. If … The Surefire Way to Get a Blower Wheel Off. This furnace has a 3 speed motor, others have only a single speed motor, some have a 3 speed motor but only use one of the speeds. Slide out motor housing. You should complete your furnace blower motor replacement by checking for normal operation. Save money and time by following these guidelines to replace your furnace fan. A lot of dirt and dust in your furnace system can cause the blower motor to overheat. Locate and remove the bolts/screws securing the motor housing to the frame. Locate and remove the bolts/screws securing the motor housing to the frame. We use cookies to ensure that we give you the best experience on our website. Filed Under: Furnace Tagged With: furnace blower motor, furnace repair, furnace troubleshooting. Many of these problems tend to stem from one common issue during the cold winter months: problems with your furnace motor blower. Turn off the furnace. Blower Motor Removal – If your blower motor requires cleaning, the technician will shut off the power and gas supply to your system. Now You can save a lot of money by doing it by yourself. What’s the Difference Between 208v and 240v? If you continue to use this site we will assume that you are happy with it. Open the furnace door and locate the squirrel cage blower. There are two main types of drives in furnace blower motors: An aging, problematic, or dirty motor has to work harder to properly circulate conditioned air throughout your home, which leads to higher energy consumption. To take the motor out of the fan unit you will have to check all the screws that you need to take out. Get the (near) daily Tech Tip email right in your inbox! Cover the sheet with magic erasers by gluing them on, and cover the erasers with chicken wire to protect them from being sucked into the blower. Often called a blower, the furnace fan is usually one of the most reliable parts of any furnace. Just like you did, loosen the stud, oil the shaft and spin the wheel around the shaft to get oil around it, tap wheel towards motor an 1/4″, spin it again, now cut the shaft off flush with the hub using a battery powered rotary tool, like a die grinder, use a 3″ cutting wheel and cut the rusty shaft off right at the hub. Mas Broto is also a blogger, who's dedicated to bringing you the best knowledge to get ahead in the game of life. If the motor itself is making noise, the bearings in the motor may have damaged. A shake or two may be required. Step 1 - Determine the Exact Model of Furnace Fan You Need. Locate the blower motor assembly near the base of the furnace. Position the new motor so that its rotation matches the direction that the fan moves the air. Motor puller tools are an awesome backup tool when needed, but that shouldn’t be the go-to method of removing a motor. Since the motor power wires are connected to a control board that is often located in an upper compartment, two access panels may need to be removed. Undo screws on motor so that you can take off the belly band. Turn the hub puller clockwise until the motor comes loose. Locate the position of your blower motor on your furnace. One extra tip…Blow off the sandpaper/rust debris before applying the lubricant, and don’t apply lubricant before you sand the shaft. Now you have all clean shaft and will often not even need a puller. They are easy to lose), (Optional) Take an adjustable wrench and gently turn the shaft independently of the wheel. :) Thank you, in advance for your support! This site uses Akismet to reduce spam. Cut a sheet of thin, galvanized steel to the size of the space inside the furnace just next to the blower intake. Remove the front panel of the furnace. Non-hardening, non-drying fluid which bonds tenaciously to many different substrates. Sometimes, when technicians don’t sand down a shaft and spray the area with WD-40 or other water displacement lubricants, the shaft will get stuck and a tremendous amount of force is required to crank the motor puller shaft against the shaft of the motor. It may be behind a gravity panel that you can simply lift off, or there may be an access panel that you must unscrew with either a Phillips or flathead screwdriver. Here at Thedailythrive.org, our aim is to ensure that you avoid getting into such a mess. He is person that will grow and thrive to learn more about the HVAC industry throughout his career. The wrong choice could leave you saddled with never-ending headaches and ever-high bills. If you believe that the problem with the blower motor is with the blades of the fan, remove them first for a visual inspection. Center the motor within the fan wheel and connect bolts and capacitor leads on back. The proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat transfer and increase the efficiency of the coil. On the back side of the motor, loosen screws and capacitor leads. That’s all you need to do to remove a shaft! Tips for Cleaning an Air Conditioning Common Drain, Motor Overload and Safeties – Kalos Meeting. Remove the screws with a counterclockwise rotation. Please note the two things that must be completed before using a motor puller: sanding the shaft and lubrication. If the blower motor is noisy, the set screw on the blower wheel potentially loosened. Typically, one drop of Nylog can be stretched about three feet before breaking. The motor is located in the middle of the blower and is accessible from one side.
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