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