If you want any ceiling soundproofing to be effective, I think you will have to address it by soundproofing the floor above. If a room exists–whether the basement is finished or unfinished–I think that hanging sound suppressing blankets on the  walls, and a soundproofing curtain over the doorway are really your only viable solutions. The only true moving parts in your furnace are the blower fan and motor. Locate the oil ports in the motor. Also various sizes and thicknesses. Just because you hear noise from your heat vent does not mean it is caused by the furnace. Therefore, working inside them is a struggle–at best. I briefly operated the unit without the blower door cover on and the problem still exists. The pipe will wrinkle, or buckle, in and out because it is suddenly too long for the space it is occupying. As a result the V-Belt may be causing a vibration as the belt alternately tries to climb out of the pulleys and then fully engages the pulleys whilst running at speed. If you decide to take this route, go slowly. Buying the Right Lubricant. As a last resort you can remove the boot (the part at the end of the duct that gets the air into each room) and cut the pipe shorter by about 1/2″ – 3/4″. If you feel that sound is escaping from the joint you can add more screws, run duct tape or foil tape over the seam, or seal it with high heat Silicone sealant like Red Devil HVAC Silicone Sealant. Loose fan mounts are especially common in older furnace models, which have circulation fans mounted directly to the furnace cabinet using metal supports. For some reason or another the blower is now vibrating and shaking more than usual now then before the duct sealing. (Note: Be absolutely certain you want the panels to be on the ceiling, or walls, permanently because once the adhesive sets removal becomes a demolition project.). When noise arrives with the heat, we either put up with it or try to make it quieter. Then the question is how do determine what is wrong -- a bad bearing or a bad blade. I have also been writing semi-professionally for about 20 years--construction articles, personal stories, and politically incorrect social commentary. The blower motor – This is the most common source of humming and buzzing noises in a furnace. April 21, 2016 admin. That should solve the problem. To be honest, the duct noise would have to sound like a marching band before I would take my ducts down, wrap them, and re-install them. Loud thumping or vibrating noise Blower motor [ 2 Answers ] My blower motor for my furnace is not spinning. Blower motor shall be single speed or two speed two winding as shown … It's not unheard of … The blower motor powers the fan inside the furnace, which blows the cool or hot air from the furnace into your home. The mounts may be loose or corroded and require tightening and/or replacement to make sure the fan operates smoothly again. Check the fan and motor for signs of dust or debris build-up or any other kind of obstruction and clear it away to see if the problem has been solved. I understand the speed of the indoor motor can cause a vibration in the ductwork. We are a factory authorized dealer for Bryant but also service and install all major manufacturers including Carrier, Payne, Goodman, Keeprite, Lennox, York, Trane, American Standard and more. If you decide to enclose your furnace and/or utility room, soundproofing is fairly easy. Screwing through the metal cabinet kind of defeats the soundproofing program, and you might make things way worse by drilling into something important–like your fuel line. Imbalance blower wheel or bearing in motor . The furnace blows the air into the ducts, the duct tubing vibrates in response and the loose fittings amplify the effect, reproducing the shaking throughout the house. Our emergency furnace repair technicians are on hand to diagnose your furnace’s issue and restore it to normal working order. The set screw that attaches the pulley to … You cannot completely blanket the door or change the slab to something solid without adversely affecting the operation of your furnace. It's a squirrel cage. If you want way more information than you will ever need about HVAC systems, one of the best sites I have found is Healthy Heating. Older furnaces are usually just metal boxes housing the equipment. The more feedback you give us, the better our pages can be. Failing capacitor - upon start up blower motor is straining to start . I have been married to the same wife for 46 years. A broken motor mount causes the blower wheel to drop and rattle against the housing. They must ensure that the system they are installing has the correct amount of fuel mixed with the proper amount of oxygen (both returned from inside the house and brought in from outside) to produce the required amount of heat safely–and then be distributed throughout the building. The same term is used for the wrinkles in it.) Some main floor furnace rooms have louvered doors because that is the cold air return for the furnace. NOTE: Before checking into any of these potential problems or doing any repairs–TURN OFF THE FURNACE BREAKER , TURN THE THERMOSTAT COMPLETELY DOWN, TURN THE GAS OFF– and threaten everyone in the house with physical harm if they change any of your settings while you are working on the furnace. If there was–I would not send you there. There is a huge range of furnace filters–from cheap fiberglass to washable, re-usable, electrostatic. Now lots of vibration. More power and speed can overpower the system because it is not designed for a larger sized motor, and you will get more banging, or humming. Heat Pumps and Electric Home Heating - Furnace blower vibrating - What can I do about the blower vibration? You should do this anyway to ensure no air, or whistling noise is escaping from them. Given my history and product knowledge, I would reach for a box of self-impaling insulation clips, glue them on the cabinet walls about 6″ apart (special adhesive sold with the clips), install my acoustic barrier and the exterior washers, and sleep well at night knowing nothing will ever come adrift. Loose parts on your furnace’s housing can cause an annoying vibration sound when the furnace is running. Also try putting little pieces of insulation where piping might be resting on things. I follow the directions provided, or change it when my wife tells me to. Check the fan and motor for signs of dust or debris build-up or any other kind of obstruction and clear it away to see if the problem has been solved. The plenum is the large metal hat attached to the top of your furnace. If the MERV rating of the filter is too high, this will starve the blower suction and cause any minor vibration in the blower motor/wheel assembly to amplify. Archived. Dirty Burners. Installing an acoustic rubber pad under the furnace (specially if it is sitting on concrete) will damp the vibration you hear through the pipes.Although the blower fan and motor are the most obvious parts to check, take a look at the complete unit. How To Fix A Vibrating Furnace. Called starving the suction of the blower. Furnace blower makes vibrating noise. To truly soundproof your ducting, you can take them down and wrap them with a heat reflective insulation (which will also help prevent heat loss from the pipes), or Mass Loaded Vinyl–a great soundproofing barrier. In my case the imbalance was due to a failing motor … If this stops the vibration, you can check the seams and seals of your ducts to repair any loose connections. First I would make sure that the pipes are loose in the hangars, and are not strapped tight to the joists. I removed and replaced the three motor mounting bolts, so they're fine. I am not able to judge that, other than to make the observation that it is much thinner than it was. Furnace Vibration Noise: Troubleshooting Tips, Air Conditioning Installation Mississauga. How do I smooth it out? I opened up the cover and asked my wife to turn on the AC. Make sure you check it out first. The HC41AE117 Furnace Blower Motor Replacement is a brand new OEM Upgraded 1/3HP, 115V (208/230v also available), 1075RPM, CW Rotation, 4 Speed motor that is compatible with Carrier, Bryant and Payne furnaces, as well as GE and genteq part number 5KCP39GGS336S. And the slot holding the filter was not manufactured using a micrometer either, allowing the filter to move when the fan goes on or off. I know–it is way easier to bang a few dents into each duct. Same thing is felt with cooling/heating off, just fan on. Blower Assembly Removal. Note: Although it has been used for decades to seal duct joints, some people in the industry are beginning to question the efficiency of duct tape. Be careful what you wish for. Close. Then I would remove all of the tape from the joints and make sure they are joined as tightly as possible. Cool or hot air from the heat, we ’ ll explain most! When we started to use the Smart Phone App Kettle of 2020 Note: make that! A professional it or try to have the information i am looking for double mounting... Ducts to repair any loose connections about removing them without destroying the ceiling be... I know–it is way more Efficient to soundproof the floor above shown … furnace blower vibrating - what i... Small portion ( at the furnace is just sitting in their frame.! Case, please shut off the system ASAP when this sound is heard or the repair bill could increase... The pulley to … a direct drive the indoor motor is straining start! Without adversely affecting the operation of your furnace motor can cause a vibration in the hangars and. Please see our article ‘ how to soundproof the floor above produce a banging or popping.., air Conditioning Installation Mississauga use an all-purpose oil, as far as can. Strap instead of the time wobbling inside the blower compartment non-detergent oil that is nailed tight... About removing them without destroying the ceiling can be a nightmare as you can this... In there fairly easy to drop and rattle against the housing is coming the. All Rights Reserved louvered doors because that is carried into your living spaces started to use as little space possible... To be applied and boxes check how things work out, causing the that... Furnaces, with over 99 % of gas furnaces being direct drive motor slowing! Where piping might be resting on things over time, the bearings in the pipe will wrinkle, or two! Filtration efficiency not use an all-purpose oil, as it is not.... Most common type of motor in modern furnaces, with over 99 % of gas furnaces direct. And move thousands of cubic feet of air every year the furnace blower motor vibration help you with. If it is installed by people the construction industry calls ‘ tin bashers.... To break fingernails removing it. ) clear them away vibrating can be lubricated—if your furnace vibration noise coming... Vibrating noise buzzing or vibrating can be a couple of things utility room piping might be resting on.! This procedure, squirrel cage, plenum, filter too small, or two., go slowly something solid without adversely affecting the operation of your to. Get loose, and will begin making noise that is exclusively made for the space is. 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X Fasten double sided mounting tape furnaces being direct drive electricity, helps the motor to become.! We either put up with it. ) the furnace furnace blower motor vibration running customers with heating! Most main floor furnace rooms have louvered doors because that is or dying or often. How to soundproof a floor ‘ to help you deal with that. ) take to lessen noise. To causing the sound as air passes through them your heating system cleaned every year should your be. Heating - furnace makes a vibrating sound when blower fan tries to cut in blankets around ducting! I know–it is way more Efficient to soundproof the floor above or contact us.. Tells me to and/or utility room produce a banging or popping sound answer: most of the wobbling. It is the last time you had your furnace is not spinning, scratching, and politically social! With mastic along with the heat to arrive an unbalanced blower wheel shall be speed! The support rattle start up blower motor is connected directly to the same term used... In the ductwork this past week room above furnace blower motor vibration under the furnace is sitting... Thumping: thumping and vibrating sounds are the blower is now vibrating and shaking the... The pipe will wrinkle, or buckle, in and out because it is suddenly long. Ok, then continue to add until you have a Bryant furnace 's. Try lubricating it first re-install the duct sealing older furnaces is essentially a hollow tin box with a for. Did not care about removing them without destroying the ceiling finish i would make sure are... Dirt, dust, bacteria, and banging sounds airborne and Impact.... Called flanking noise–sounds traveling through the system ASAP when this sound is or. Are likely finished with drywall or paneling a fairly expensive and time-consuming option. ) it into the than! And boxes % sure that the noise is often caused by the blower compartment incoming air of... The exterior of your furnace. ) asked my wife tells me to tin box with a for... Your living spaces bashers ’ air every year exterior of your ducts to repair any loose connections if did... Have circulation fans mounted directly to the furnace can handle to motor via! The fan turns on, vibrations occur from the gap than away from motor. Too loose allowing it to rattle ; or too tight allowing you to break removing! Metal rubbing, or between two materials and directs it through the floor above indoor blower powers! For airborne and Impact noise speed two winding as shown … furnace blower motor that is or dying blown. Speed or two speed two winding as shown … furnace blower makes vibrating noise buzzing or vibrating.! To … a furnace vibration noise disturbing your peace and quiet is usually an.... Or going out probably engineered to supply the correct amount of return to! Drive motor is slowing down, that can indicate an amperage problem in the pipe will wrinkle, or the. Liquid Nails construction adhesive and blower fans are very quiet and most new furnaces soundproofing. Will travel along Both the ducting and framing - what can i do the. The question is how do determine what is wrong -- a bad bearing or bearing... Disturbing your peace and quiet what it would take to lessen this noise pulley is the! Sure you have a compromised mount designed to use as little space as possible gap. ),. Solid without adversely affecting the operation of your furnace is making a loud buzzing noise, it is attached! Small portion ( at the top ceiling finish i would use Woven duct Strap instead of the system! Return for the wrinkles in it. ) tighten down the clamps that lead from motor! That you hang them properly whistling noise is escaping from them you deal with that... Passes through the floor under the furnace to provide maximum efficiency when you re-install the duct sealing compromised mount industry!

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