From the very start, the furnace was loud. However, a previously not-so-noise blower system can also become excessively noisy owing to wear and tear or other reasons. We are a locally owned and operated family business helping our customers with their heating and cooling needs in Mississuaga, Oakville and Milton. A thumping, banging or clanking sound could be the result of a loose or broken off part in the motor or blower assembly. The Best and Quietest Air Compressors of 2020, The Best Quietest Electric Kettle of 2020. 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. Viewed 22k times 0. Most places will not sell them in quantities of less than 100, and the adhesive is sold by the gallon (enough to do over 500 clips). Noise from the furnace blower can be very annoying in adjacent rooms. Over time, the bearings in the blower motor wear out, causing the motor to become noisy. Bad capacitors is generally a sign of lack of regular maintenance. Mobile and modular homes quite often have the furnace on the main floor, producing all kinds of opportunity for Airborne and Impact Noise. When noise arrives with the heat, we either put up with it or try to make it quieter. Seems counterproductive to me. The more feedback you give us, the better our pages can be. Eliminating built-up dust and dirt (not to mention the kid’s Lego pieces) only makes it more efficient–and quieter. The company that did the installation cleaned the blower wheel of drywall dust and it helped with some of the noise. When the furnace blows warm air the metal ducts expand from the heat. You should do this anyway to ensure no air, or whistling noise is escaping from them. Depending on how old your house is, your furnace may have an inducer motor. Soundproofing the ceiling can be a nightmare as you can see from the attached picture of my utility room. If the transformer is dying or not securely mounted, it will buzz. Works better to have air or water pressing it into the gap than away from the gap.). Most modern building codes require that the furnace is in a separate room, or that the house has a door at the bottom or the stairs to separate the heating system from the living area. Blanket off a small portion (at the top) and check how things work. I have been married to the same wife for 46 years. How Can I Know That My Furnace Is Efficient. If you decide to enclose your furnace and/or utility room, soundproofing is fairly easy. If your furnace blower motor hums when it’s switched on but at the same time does not actually turn, the capacitor may be damaged. Therefore, working inside them is a struggle–at best. You might find a siding and/or insulation company that has some left over from a job, and is willing to sell you what you need. You can also add lubricant to the bearings to eliminate the screeching sound. 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 they cannot move lengthwise you will have something called ‘oil canning’. It also must allow good air flow; yet filter out as much dirt, dust, bacteria, and microbes as possible. If you are not filtering out most of the dust and dirt, not to mention anything else, what is the point of even having a filter? 2. Here are some of the reasons your trane furnace could be making a loud noise. Return air ducts are almost always quiet. The only place there could be noise is at the furnace filter. 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. It eliminates any kind of metal on metal rubbing, or tearing of pipe wrapping. As long as the glue holds up. Your blower motor forces the warm air out of your furnace … You may be able to blanket off some of the louvered section–if the door is fully vented–and still get enough air to enable the furnace to function as designed. In an unfinished basement there are no adjacent rooms to be concerned about. I would suggest lining it with Guteauto 236 mil automotive sound deadening mat. As mentioned, the heart of your heating system is the furnace–consisting of the heat chamber, blower chamber, attached plenum, and miscellaneous piping leading to, and from, most of the rooms in the house. Also various sizes and thicknesses. (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.). Almost invariable it is screwed to the furnace. To fix a broken blower motor, you will need the services of a heating, ventilation and air conditioning technician. Someone with a brain .. on all counts. I have seen a suggestion that you hammer a dent in the pipe where you think this is happening. The same term is used for the wrinkles in it.) What to Do if Your Furnace Blower Motor is Making Noise, Air Conditioning Installation Mississauga. A bad or faulty capacitor can exhibit many signs and symptoms. Adding oil to your furnace requires some mechanical know-how. The pipe will wrinkle, or buckle, in and out because it is suddenly too long for the space it is occupying. Call a professional to examine and repair or replace the broken part before you turn your furnace on again. Motor is an ECM and it makes a low pitched whine sound when in CIRC or when the blower is ramping up or slowing down to stop. I have worked as a contractor, sales person, and business owner in the construction industry for over three decades--mostly in home renovations and also as a home builder. Check … 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. 1 Posts . Because, as far as you know, it is the only moving part in there. The blower motor in your furnace blows hot air through the ducts and into your home. The one you choose must be sized for your furnace. Purchased a high efficiency Carrier furnace to be installed with the build. 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. Sound and vibrations will travel along both the ducting and framing. If you decide to take this route, go slowly. You cannot completely blanket the door or change the slab to something solid without adversely affecting the operation of your furnace. New XV80 Trane furnace makes noise when blower runs at low speed. That should solve the problem. (Both of these are a fairly expensive and time-consuming option.) 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. Having a piece of insulation sucked into your blower will not turn out well. This is called flanking noise–sounds traveling through the system that will reach into each room. (This type of noise is different than Airborne Noise or Impact Noise which generally travel through the adjacent walls, floors, or ceilings.). Make sure you re-tape all joints. If your furnace blower fan is squeaking, it’s coming from either your fan belt or your blower motor bearings. Sometimes, your furnace blower motor is just simply too loud and becomes a nuisance. It is way more efficient to soundproof the floor above. However, when your furnace is noisier than usual or you start hearing a noise you have never heard before, this usually indicates that there is something wrong with your furnace and it may be time to talk to your heating technician about some maintenance and repairs. Without decent air flow your blower motor will have to work harder, you will not get as much air into the rooms, and you could be trying to track down noises coming from the vents. See Types of Filters section above. When your furnace blower motor begins making noise, the best thing that you can do is troubleshoot the problem immediately. Cheers from Australia. Moving blankets will do the job. Loose parts on the furnace can be the reason behind the unwanted noise you’re experiencing as the blower runs. But in many houses the furnace is just sitting in an open basement. My furnace, which is 13 years old, has 3/8″ acoustic soundproofing inside the blower cabinet with a cut-out for incoming air. Our furnace is in a central location inside of our home. The furnace blower, as with any fan system, makes some level of noise. Active 2 months ago. 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. Failed Blower. Your first step after noticing this sound should be to turn off your furnace’s motor and let it cool down. But there will be some airborne noise into the room above. Just because you hear noise from your heat vent does not mean it is caused by the furnace. It may simply be that the motor doesn’t have enough lubrication, but it can also mean that a motor failure is imminent. Carrier/Payne/Bryant HC41AE117 OEM Upgraded Furnace Blower Motor Replacement . Still find your furnace blower motor making noise? Popcycler - It would help to know more about what portion of the furnace the noise is coming from however it kind of sounds like there may be something stuck in the inducer motor or the blower motor. Other possible causes include the failure of the blower motor or capacitor. ... Motor Noise. Thumps and bumping noises, like an unbalanced washing machine, often indicate an unbalanced blower wheel or motor. These noises can be described as squealing, humming, scraping, thumping, banging (usually on start-up), rattling, and rumbling. The transformer is a small box inside the furnace that has wire connections on both sides. It will be a small hole near the connecting point of the duct and furnace near the blower. Some main floor furnace rooms have louvered doors because that is the cold air return for the furnace. Reducing furnace blower noise We installed recently a new heating system that allows us to heat the house more cost and energy efficient. You may be dealing with a bad belt, a problem with the motor bearings or even a broken part. What I am puzzled by is the noise that sounds like a "starter." If there was–I would not send you there. If you are hearing loud screeching and rattling noises when you turn your furnace on, the bearings in the blower motor or the blower motor itself could be to blame. This is a handy dandy piece of equipment that keeps harmful chemicals, like carbon monoxide, out of your home. To see if this the problem, pull out the filter and see if the whistling stops. (Here’s what this sounds like) Furnaces are known for their strange noises. All we do is turn up the thermostat; then wait for the heat to arrive. (2) Another problem might be a blower motor that has a weak run capacitor. You can frame the room, then insulate the walls and ceiling (if easily accessible) with soundproofing Roxul 80, drywall and finish as required. Sometimes, a broken blower wheel can also be the source of this distinct noise. Ask Question Asked 3 years, 3 months ago. The professor tends to pontificate a bit but there are articles on most types of heating systems. (Turning my cell phone on is usually an accomplishment.) When you hear the furnace making a humming noise, it could be a sign that your blower won’t last much longer. When your furnace blower is making noise like humming, screeching, or thumping, it can be a sign of wear or damage. The back side is fully self-adhesive which is one of the main attractions. Normal sounds you may hear are tiny little pops or hums as the furnace runs. Final Note: Make sure you have your heating system cleaned every year. Another way a blower motor gets overheated is from having bad capacitors. If you find yourself hearing a strange noise from the furnace inducer motor, we just might have the solution. Moreover, the motor mount may have broken causing the blower assembly to hit the housing. Full disclosure. A loose belt is a common cause, but the issue may be more complex within your blower motor. 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. This problem can be solved very easily if you simply add a few more screws to the air duct or even put duct tape on the loose parts. This article does not have the information I am looking for. So, again, your best bet is to hang soundproofing blankets on the walls. And the walls are likely finished with drywall or paneling. The access panel is quite often too loose allowing it to rattle; or too tight allowing you to break fingernails removing it. The noise is there in heat or AC. Once summer came and the blower ramped up for A/C, it got really noisy. The heart of the entire system is the furnace. It collects the warm air and directs it through the duct system. It is installed by people the construction industry calls ‘tin bashers’. Sometimes the noise coming from your furnace may be due to the fact that there’s a loose belt inside the furnace blower. The bad news is–the plenum passes through the floor under the furnace.). If you check, and the belt is actually loose, then it’s best to replace it with a new one. Whether or not you will be able to repair the problem by yourself will have a lot to do with regular maintenance and a little bit to do with old fashioned luck. Make sure you check it out first. Discussion Starter • #1 • Oct 4, 2008. If the set screw is loose, the blower wheel will wobble on the motor shaft, and the wheel will be noisy as it turns. Your answer will be used to improve our content. 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. If I did not care about removing them without destroying the ceiling finish I would also use Liquid Nails construction adhesive. After much experimentation over many years we settled on the Filtrete 1900. I understand that a large fan and the movement of large amounts of air will produce some noise. I have also been writing semi-professionally for about 20 years--construction articles, personal stories, and politically incorrect social commentary. If only a section of the door has louvers, don’t mess with it. We have 3 children and 4 granddaughters. The blower wheel blows air out of the furnace and through the house. If your furnace blower motor is making noise, try not to panic. The blower wheel is attached to the blower motor shaft with a set screw. The most active component in any furnace would be the Blower Fan Motor and a lot of these noises will be generated from this blower assembly. Call Evam Canada now for emergency furnace repair at 905-624-5544. Your heating system is a complex combination of incoming fuel, incoming air, recycled cool air, and warm air blown into the places where it is wanted and needed. This blower is like the motor of your machine, pushing warm air through the ductwork and into your home.