If the set screw is loose, the blower wheel will wobble on the motor shaft, and the wheel will be noisy as it turns. If you hear this sound, it needs addressing straight away. The noise is made when it hits against the blower house casing. Continual rattling noises are often symptoms of broken fan or motor parts. No contact with housing or loose blades. Furnace unit vibrating, blower wheel/motor out of balance or going out? If the motor mount is broken, it could be causing the wheel to shake and make noise. Furnace Noise Causes Scraping or Grinding Sounds. After removing the panels it is the blower wheel rubbing when getting to a certain spot. You need to turn off your furnace immediately and wait for a professional to do a full inspection. If the blower wheel is damaged, replace it. Noticed a louder humming and shaking in the home when we started to use the AC this past week. Before you join the fan wheel with the new motor, make sure that the fan wheel is centered within the furnace blower wheel assembly housing. But what makes a blower wheel get unbalanced? Loud Boom. Well, the first step is finding the source of the noise. A few blower wheel problems include: Blower wheel is loose from the motor wheel. How to fix this issue depends on the source of the problem. Have him check the static pressures. Most likely the blower fan has become loose and is creating the sound by hitting against the blower house casing. FURNACEXV90i XV90/TRANE TRANE XV90 AND XV90i VARIABLE-SPEED ... TRANE XV90 AND XV90i VARIABLE-SPEED, TWO-STAGE FURNACE TRANE XV90/ XV90i FURNACE MAXIMIZE COMFORT, AIR QUALITY AND PROFITS XV90 and XV90i gas furnaces… When as little as 1/10th of an inch of dust accumulates on your blower wheel, it can reduce your furnaces efficiency by 20%. Loud clanking or scraping, classified as a metal-against-metal sound signals a serious problem with the furnace’s blower wheel. Loud Pops & Bangs. Make Offer - LENNOX 74H0501 ARMSTRONG FURNACE BLOWER WHEEL 8" X 10" DIA 1/2" SQUIRREL CAGE . As the blower motor wheel rotates and spins in this condition, it rubs against the surrounding metal surface creating a high pitched noise in the furnace. The company that did the installation cleaned the blower wheel of drywall dust and it helped with some of the noise. If you keep it running it could cause damage to the heating system. BURL-REF. AO Smith Furnace Blower Motor F48G74B22 3/4HP 1100 RPM Dual Blower Wheel 401272. Next. What causes your furnace’s noise-making largely depends on the type of noise you’re experiencing. When the popping noise is louder, your gas furnace’s burners may be dirty. This noise then is a sign that you should turn off the furnace right away. Bad Blower Motor - Qualified Technician Recommended . My Atwood 8535 IV furnace is making an intermittent squealing noise of varying pitch and amplitude, blower rotation actually seems quiet, it is more like a high pitched vibration as versus rotation noise. LENNOX 74H0501 ARMSTRONG FURNACE BLOWER WHEEL 8" X 10" DIA 1/2" SQUIRREL CAGE . It even vibrates the single pane windows separating our sunroom enough for the windows to make a "tizz" sound. Next, inspect the wheel for damage. Check the set screw to ensure that it is properly tightened. See … The Blower Wheel is Dirty. Rattling . When the blower hits full speed, there is enough vibration to shake half of the 1500 sqft floor above it (furnace is in basement). Next, inspect the wheel for damage. Check the set screw to ensure that it is properly tightened. This high pitched squeal typically occurs shortly after the blower start running, or sometimes after it has run for awhile. If your blower wheel is broken, your furnace will not be able to properly heat your home. A4124 Goodman OEM Furnace Motor, 1/2HP, 0131F00022sp 4.8 out of 5 stars 147. If you hear loud clanking and scraping, you could have a serious problem with your furnace’s blower wheel. If the motor mount is broken, it could be causing the wheel to shake and make noise. A loose blower wheel can shake, rattle, and rub against blower housing. If the set screw is loose, the blower wheel will wobble on the motor shaft, and the wheel will be noisy as it turns. Same thing is felt with cooling/heating off, just fan on. The blower wheel may need tightened but this must be done by a professional technician. 1. If you follow these steps and catch it early, you should only face minimal damage and repair needs. The blower wheel blows air out of the furnace and through the house. Most of the time a piece of something (filter, furnace insulation, paper, dirt) has become sucked in the blower wheel (squirrel cage) and causes it to become off balance and wobble. First of all, with the furnace turned off at the circuit breaker, use a flashlight and make a thorough visual inspection of the blower. The blower wheel is broken and needs replacing. Purchased a high efficiency Carrier furnace to be installed with the build. The noises you’re hearing are usually caused by one of two things. The cause of this noise is usually a problem the furnace’s squirrel cage blower wheel. Took a closer look at motor shaft to try to detect any misalignment, couldn't really tell. Insulating the cabinet may help, but doubt that is the major issue. From the very start, the furnace was loud. This is not a huge noise, just a little annoying. Only 12 left in stock - order soon. Posted on: 3 February 2020 Most of the time, you may not really think about when your furnace runs, except for the low hum of the air blowing out of your vents. Every furnace makes some noise when it runs, but some furnace sounds indicate a problem within the system. The blower wheel is attached to the blower motor shaft with a set screw. The most common reason for an unbalanced blower wheel is a lack of maintenance. Dimensions: 22″ x 10″ at the base and 16.5 from bottom to highes... Read More. It may also cause the furnace to shake when running. Make sure you have chosen the correct rotational direction for the motor and fan. If your unit is making loud boom-like noises, it’s often an indication of dirty burners within your furnace. Furnace Noise Bad Blower Wheel 2. Close. Pulled from working environment. The blower wheel may just need tightened, or it may need to be replaced. Turn off the furnace immediately if you hear this type of noise, and call Golden Seal Service Experts to investigate. This only happens when the blower is at full speed under cooling operation, which hits 1265 CFM. Get a professional to tighten the wheel. Whatever situation you’re facing, we have plenty of tips below. Loud Pop or Bang When You Turn On Your Furnace. If you find yourself hearing a strange noise from the furnace inducer motor, we just might have the solution. Pages with related products. Have been in a new build house for almost 3 years. Posted by 5 months ago. The blower wheel blows air out of the furnace and through the house. With a furnace, this can happen when the blower motor wheel is misaligned, loose, or broken. 2. If a blower wheel is allowed to get really dirty, your furnace and air conditioner may not operate at all. Either there’s buildup on the wheel or the motor is going out. If you hear a grinding sound then there is something wrong with the cage blower wheel. Pulled from working environment. Another problem that arises from this dust accumulation is your heat exchanger running hotter. A certified HVAC technician can adjust or repair the blower motor wheel if this is the case. I took it apart, replaced with new blower wheel, wheel was still not turning true. I'm not sure if this is something I can adjust or if I should hire a HVAC to diagnose and probably replace the blower assembly. The blower spins up and pulls air from the Air Return creating a flow of air through the heat exchanger and out of the ducts. Like a rock stuck in a tire. OEM Replacement Furnace/Air Handler Blower Wheel 10x10 CLW CV Direct Drive, HVAC, Double Inlet 4.7 out of 5 stars 27. The blower wheel could have come loose from the motor shaft and bumped into the blower casing, or the mount … An unbalanced blower wheel can explode. Allowing the furnace to run can result in significant damage, and the unit should be switched off at the first sign of noise, and a technician called for immediate repair. But I know you want to fix the furnace and enjoy the warmth it provides We’ll cover handy maintenance and sound deadening tips to help you enjoy a noise-free furnace. If you hear this noise, turn off your furnace immediately to prevent any further damage to the furnace. 02-02-2009, 12:46 AM #13. Why is Your RV Furnace so Loud? Includes all components shown in photos. Rheem Ruud Squirrel Cage Furnace Main Blower Wheel Motor Assembly 67876-05. The faster it's spinning the more often the noise. There are some things that you will need to consider when making your diagnosis. 3. The blower wheel is attached to the blower motor shaft with a set screw. A whining noise. Your motor bearings are small wheel-shaped devices that “bear” the brunt of the friction as your blower motor spins. 3. $55.00 +$12.00 shipping. The blower wheel may just need tightened, or it may need to be replaced. $99.48. $85.00. So, it’s safe to say that bearings often wear out and need to be replaced. The noise of metal scraping against metal often indicates a problem with the blower wheel. It may be hitting another furnace part, or it might have come loose or be damaged. This will ultimately lower the lifespan of your furnace. $125.00. Furnace unit vibrating, blower wheel/motor out of balance or going out? A whining noise… The furnace Motor Mounting to Blower Can Control Noise • Loose blower wheel on shaft can affect starting and will be noisy • Loose motor in ... Doc Viewer . This usually means there is a problem with the blower wheel within the furnace, and continuing to let it run could cause further damage to this important component. The blower fan may have come loose and is now hitting the blower house casing. Homeowners often notice a popping sound when the furnace begins a cycle. If either one or both of these furnace parts are broken, the noise you hear could be caused by the assembly hitting the furnace casing. very possible it is a blower wheel that is off balance, or furnace is oversized for the ductwork. Common issues with the blower wheel include: A broken motor mount, which is designed to hold the blower assembly in place; A broken blower wheel Scraping sounds, grinding noises or other types of metal on metal sounds are usually caused by three main problems: a loose blower wheel, a broken blower wheel or a broken motor mount. The current powers the time delay relay which in turn passed power to the RV furnace blower. $249.99 +$59.99 shipping . A broken blower wheel, on the other hand, may result in a loud clanging or banging noise from the furnace when the blower motor starts. If your furnace blower motor is making noise, you will need to determine whether or not you can repair the existing blower motor or if you will need to replace it. This is due to warm air that hits the cold metal of the ducts, which causes expansion and produces that noise. Includes all components shown in photos. A metal-scraping sound needs to be addressed right away, and requires the attention of a professional HVAC technician. Chirping. Have your HVAC company make sure the noise isn’t caused by the blower wheel. The blower wheel and motor are major furnace parts and you don’t want them bouncing around. Another fan pulls air into the combustion chamber to feed the furnace. Blower motor repair/replacement; Of course, you could just turn it off and avoid the noise – and the root cause of the problem. Turn off your furnace immediately and wait until a professional HVAC technician has had a chance to inspect the system. Any problems with your blower wheel need to be repaired by a technician. You can't fix stupid. Once summer came and the blower ramped up for A/C, it got really noisy. If you hear a metal-on-metal scraping sound, it could indicate a problem with the blower wheel. The most common issue is the blower wheel coming loose. If you experience these symptoms the system should be turned “Off” and a qualified technician should diagnose. And I always install flex connectors, they do help reduce vibration transfer. Hearing this noise in your home could signal an issue with the motor or the blower wheel. Answer: Most of the time wobbling inside the furnace is caused by the blower wheel being out of balance. Blower wheel was balanced just fine, some dirt not horrible. B13680-47 - Goodman OEM Replacement Furnace Blower Wheel / Squirrel Cage 3.9 out of 5 stars 11. The furnace was making quite a loud noise when it's running. 2 Noises From Your Furnace Indicating A Problem With The Blower Wheel . The following outlines the potential causes that could be contributing to your furnace’s noisiness according to the type of sound you’re hearing: Scraping: This is typically caused by either a loose blower wheel, broken blower wheel, or broken motor mount. 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2020 furnace blower wheel noise