Reasons Your Furnace Could Be Making Noise Failing Motors or Motor Belts The motor in your blower unit has a belt that keeps it running. If you hear a sound like a loud bang or boom coming from your furnace, you would certainly be wise to be concerned. So the … Lastly, if your belt is fine, this furnace noise may be indicating that the motor’s bearings have worn out. If you’re hearing a squeaking, squealing noise as you furnace runs, the motor belt may be loose or fraying. If too many vents are closed or covered up in your home, is one culprit for this. This may end up fixing that rattling sound. So to recap there are three different things that will cause your gas furnace to make noise: The sound the burners make when burning the gas The induced or forced draft motor (you have either of the two) And the blower inside the gas furnace that blows the air through the ductwork. Let’s Identify the Noise and Fix It. more restrictive) air filters, the noise from the air being pulled in increased dramatically to the point of being annoying. The main floor is about 2600 sq ft and the upstairs 1000 sq ft. Iliana O. If your filter is dirty and stopping air flow, it is a good idea to take it out while you buy a new one. My main concern is the loudness of the gas when it is burning, It is like a giant blow torch. My manufractured home is only 2 yes old ,always been loud. You would expect the designers to realize that if a furnace is to be in stalled in a closet certain design elements should have been included to account for the noise. It is LOUD. The filter may be clogged, causing the furnace to attempt to suck in air any place it can. My 25 year old home needed new furnaces. Why is my furnace so loud? When my new Trane XT80 was installed, because of the size of the new coil, they had to convert to side-return (my old furnace sat on a box and return air flowed up from the bottom) The return from upstairs now comes in on the left side of the furnace (filter on that side), the basement return (16'x16") now comes in on the right (there's about 17" from the wall to the furnace… Identify the type of sound, then take needed action to keep you and your family warm in the colder months. Generally, airy noise from your furnace is normal for obvious reasons. A simple test of the transformer can help eliminate this cause for this abnormal noise with a furnace. The motor requires regular lubrication to maintain top performance. Another reason for this sound could be that the shaft bearings or other moving parts are dry. Whether you are dealing with a bang, rattle or whistle, you’ll know what is most likely causing it, and how to silence your loud furnace. Contact a professional immediately if you cannot fix the rattling noise by tightening the panels and screw. Here are a few common furnace noises and Why is my furnace so loud? Don’t ignore the following scary furnace sounds. Home » Furnace Making Noise? You need to turn off your furnace immediately and wait for a professional to do a full inspection. Because sounds can resonate throughout the ductwork, it can be difficult to decipher where a particular sound is coming from. Remind you this is inside our home, in our main living area. If your furnace is making a loud noise just as it starts, this could be caused by a serious problem called “delayed ignition.”. When you do your maintenance checks, make sure that all the moving parts are lubricated. Just check that good airflow is occurring at several of your registers in the home. So they install the unit, fix the duct work, and it turns on and holy crap the unit is so LOUD!! A whistling noise will happen if your furnace needs greater airflow. Another possible cause is that your ducts are too small. But they usually fall into one of six different categories listed below. It seems very loud, since she runs it day and night. And as it’s adjacent to and/or attached to walls and floors, the vibration can transfer, causing even more noise to emanate from structures in your home. Retape with duct tape if necessary. My furnance is about 20ft in the hall ,it has no door except the furnace itself and is so loud I have to turn volume up on my tv when it comes on. To fix this you can try screwing a thicker piece of metal onto the weak spot or you can re-hang the duct. This handy guide will walk you through the possibilities. If you’re hearing a loud banging or booming sound, this could mean your furnace has dirty burners. It sits about ten feet from my house and it is hard to sleep at … Don’t worry, we are here to help. With the power off, use your screwdriver to tighten your panel screws. One noise a furnace can make is a whistling noise. Check to see that any seams here are sealed. If you can hear a rattling noise coming from the furnace, it could be that a panel or screw is loose. We make fixing things easier! I can live with the furnace … A sign that your duct is too tightly secured is hearing a squeaking sound when you walk on the floor near the furnace. If not, the blower fan can completely break and need replacing. The delay on ignition causes gas to build up, and this causes the boom when the ignition is turned on. You can also check if other restrictions in the system are present and causing your furnace to work harder than it should. We spend $20 billion on HVAC equipment each year. You’ve probably become used to the sounds that your furnace makes when it kicks on, but if there are some new noises that have developed recently that have you scratching your head, let us help. it keeps you awake at night! Do you know , if in general new furnaces are louder? It’s always best to follow the directions in your furnace manual for maintaining a drive belt, i.e. Not enough return air ducting is the main problem with mobile home furnace noise. Don’t let your furnace ruin the comfort and peace of your home this holiday season (and the rest of winter). Modern furnaces are equipped with sound-dampening technology and a two-stage compressors to operate efficiently and quietly. And finally, all this working together can vibrate all or part of your furnace. It is almost deemed, that we are looking for seasonal patterns when purchasing things Continue reading Why is My Furnace So Loud? It's a small high efficiency hot air furnace but it has a rather loud air blower. Oil can definitely help with this type of furnace noise! If the whistling is a recent noise you’ve never heard before, trying turning off your furnace and removing the furnace filter. Furnace Repair, Heating Repair & Furnace Tune-Up Oak Lawn, IL, Lemont, IL, Tinley Park, IL, Palos Park, IL, Orland Park, IL & Burr Ridge, IL Why Is My Furnace So Loud? Some noises coming from your furnace are normal and indicate your furnace is working correctly. Check that these are not fully closed and in fact are doing their job of dividing and moving air accordingly down your duct work. Otherwise, the fan can seize up, which can be costly to repair. It could also be humming or whirring, which results in your furnace not running and heating as it should. Your manual can also tell you if your furnace motor needs oil or not, and how to oil it. One common cause of a loud bang, or boom, is a dirty burner in your furnace. We have been a leading provider of heating, ventilation and air conditioning services since 1979. Another reason for this sound could be that the shaft bearings or other moving parts are dry. So check first for obstructed or too small air ducts especially return air ducts. Although all furnace types aren't completely silent, it's difficult at times to identify the difference between your unit's natural, low humming noise and a new noise that signals a problem. 1760 6th Avenue It is best to contact a professional to inspect and carry out a full replacement. it keeps you awake at night! This may be a problem with the furnace transformer. Check the alignment of the belt by holding a straight edged item (ruler) against the faces of both belt pulleys and match it against the belt. It is probably a good idea to call an HVAC professional to come diagnose the problem and fix it before the problem get worse. This can be dangerous, and you should call a … If you find yourself wondering “why is my furnace so loud?” for even a moment, call … If your furnace has a belt driven motor, if this comes loose it can cause a squealing sound. However loud or funny noises could indicate a need for heating repair. There are 4 main components related to the furnace that are going to generate much of the noises a furnace makes. If you hear this sound, it needs addressing straight away. It was installed by pros, and it is in a seperate room in my basement. If the whistling has started recently, it could be a clogged filter. This often occurs when there is an issue with the filter. Rattling can also signify a faulty heat exchanger with a leak or a crack in it. my furnace is making a loud noise when it kicks on, Engine Pistons. Remind you this is inside our home, in our main living area. As just mentioned, many different parts could be responsible for a furnace that is noisier than normal. To work properly, your furnace needs to have the right mixture of air and gas. But it can be hard to pinpoint what exactly is causing the noise, and how to fix it. You want the belt to be aligned to it. I have a new ruud furnace, less than ayear old. Even the smallest of holes can create a loud whistle. Because all models of furnaces have sounds or noises, it can be tough to identify the contrast between your system’s regular, faint humming sound and a peculiar sound that indicates a problem. Again, follow the directions for adjusting this alignment in your manual, if necessary. Help! You can see our entire lineup of furnaces to compare features and … But sometimes things go wrong, and when this happens the first sign is often a strange noise. Try to locate the source of the whistling. If you don’t have your manual, call the manufacturer and have them send one, or have a technician from the maker guide you. Like 75-85db when running. If it’s gone bad and can’t hold a charge anymore (to help the normal jumpstart the your blower motor), then it needs to be replaced. One last thing. We also got new compressors and humidifiers. Read on for the most common culprits and how to silence your loud furnace. As time goes on, your blow belt will need adjustment or replacement. Home » Why Is My Furnace So Loud? Often, it will be a small hole or gap near the connecting point between the furnace and duct. Yesterday we had them both replaced with Goodman 80% furnaces and upgraded to variable speed fan. The main noise you hear under the hood is that of the engine’s pistons going up and down inside the engine’s cylinders. A boom or thudding sound could also be the metal air ducts contracting and expanding due to temperature changes. Home furnaces are noisy by nature, with their large blower, expanding hot air, metal compartments and other parts. The good news is that you can usually narrow it down by the type of noise you’re hearing. I am on a slabso the furnace is in a closet. It's a duct dimensioning problem if the pressure difference is high. One of my complaints of our old Carrier system is the noise. Part of the installation was a KLR-200 oil furnace made by Granby Industries. I replaced the 35 year old lux aire furnace in my house with a 83% amana in october...this bad boy is LOUD. If this is the case, then you will need to replace your ducts with larger ones. If the belt’s condition is in question you should replace it. If you hear a loud clanking or scraping sound, like metal-against-metal, this points to a serious problem with the blower wheel. If you have questions or need help, call or text 919-457-2494 for all your HVAC needs. There is 2 HVAC systems, one larger than the other. If you follow these steps and catch it early, you should only face minimal damage and repair needs. If this doesn’t fix the rattling, there could be a more serious and dangerous problem. Furnaces are usually used when the weather calls for it. 2. Additionally, unless you have a standing pilot gas furnace which is an older type of gas furnace and not typical in the average home today, your furnace will have an induced draft or forced draft motor to properly vent the combustion gasses and give the combustion chamber combustion air. In particular, you’ll most likely need to adjust or replace a worn or misaligned drive belt. As an Amazon Associate we earn from qualifying purchases. You can help this by reinforcing the duct. A lot of inshot gas burners make a noise when they are burning the gas. Check that all screws, bolts and braces are tight and firm against walls. Loud Bang or Boom. This will ensure your furnace is working with maximum efficiency. In fact, there are some odd furnace noises that can easily and quickly be taken care of by the average homeowner, perhaps by something as simple as changing a filter. You can try to fix this yourself. Metal air chambers such as your furnace plenum and attaching duct work all contain fast moving warm air. You may be asking yourself, why is my furnace so loud? Keep your eyes – and ears – open. An easy solution to this is to replace the filter. Check to see that any seams here are sealed. Here are the most common reasons your Carrier furnace is loud & noisy - and the parts & instructions to fix the problem yourself. The noise is made when it hits against the blower house casing. Why is my furnace so loud? Warm air from your furnace expands into your ducts when the unit is running. My neighbor just installed a new Trane XR 13. This occurs when unburned oil builds up in the fire box chamber and is ignited all at once. My furnace makes so much noise I cannot even hear myself think! You may see tape already there, but it could be coming lose and allowing air to whiz through when the furnace is running. Let’s Identify the Noise and Fix It, Furnace Transformer - What It Is and How Does It…, Inducer Motor and Blower: Why Your Furnace Needs One. Most mobile home cold air returns are virtually non existent. You should address it as soon as possible as it can lead to carbon monoxide leaking into your property. Expert Furnace Diagnosis & Repair In New Jersey. This extra pressure on a weakened area of the ducts could cause it to push outward and “pop,” hence the loud banging sound you … But, there are some more serious noises to be aware of. ), then you may have air leaks around where your furnace meets the plenum (the chamber where your main duct connects to). I can live with the furnace noises, but the blower fan is insane. Clogged filters restrict airflow in your furnace. | December 5, 2017 If your furnace is making unusual and loud noises, it’s important to pinpoint the source of the sound in order to solve the issue. If you hear a gunshot sound go off when you turn on your furnace, you may have a gas build-up in the system. If your unit is making loud boom-like noises, it’s often an indication of dirty burners within your furnace. We could not believe that this was a new heating system. My old 20 year old clunker was nevr this LOUD. Follow the directions in your manual on how to remove the belt. The mornings and evenings in the Waco Texas Area are getting chilly, so you may have found yourself relying on your furnace to keep you warm! This is often caused by a weak area of ductwork. It can be better to contact a professional for a full inspection, oiling, and any other maintenance or check-ups. How Long Should a Furnace Last on Average? My furnace is supposed to be a perm lubricated motor. Building an air furnace sound insulation Magic eraser sponges are made of an open cell melamine foam. Tips for Buying a Quiet Gas Furnace. When you get a hold of the belt, see that it doesn’t have any cracks and is not fraying. If your furnace has a belt driven motor, if this comes loose it can cause a squealing sound. It will not only reduce the noise but also prevent wear and tear on the fan motor. So at this point Im even more confused. Restricted airflow can generate a whistling sound. Listen and find the weak spot. it can tell you how to properly set the tension for it. When your furnace makes noise, it may not be normal. Here are a couple of common reasons why you may hear loud banging or popping coming from your furnace: Dirty furnace burners – When dirt collects on the furnace burners, this can cause a delay in ignition, which can make the gas to build up. With this type of furnace noise, you may need a minor tune-up. You may have directional flaps that route air in some of your duct work. Thank You. Furnace Making Noise? This may be an issue with the capacity in your HVAC unit. Call a technician if in doubt to accurately assess. Generally, airy noise from your furnace is normal for obvious reasons. Powered by the mixture of fuel and oxygen, combustion occurs when the spark from your spark plugs act as the trigger. Furnace blower loud train like noise [ 20 Answers ] My furnace blower recently started making a loud, low, steady train like noise every time it comes on. But if you have an unusually noisy airy sound from your furnace (i.e. Check that supporting walls are solid and not damaged. To test this, pull out the filter and see if this stops the whistling. This is a natural process and does not suggest any damage. This will ensure your furnace is working with maximum efficiency. More complex problems, however, such as a loud bang caused by a delayed ignition, are better left to the professionals. It may not be converting the voltage from your home’s electrical system correctly, and thus, supplying the wrong voltage to your furnace to start it up. Since when does gas burn … Yes, it can be hard to initially tell just which of these parts is lending to your noisy furnace. HomeRepairGeek.com All rights reserved. ), then you may have air leaks around where your furnace meets the plenum (the chamber where your main duct connects to). Loud Pop or Bang When You Turn On Your Furnace. If you are sure that those are good then proceed further. Learn why your furnace might be making a certain type of noise. https://www.comfort-pro.com/2014/12/why-is-my-furnace-so-loud More than likely, your furnace making strange noises is a pretty good sign that something is wrong. They will be able to make the proper adjustments. If so, you may need to replace them, so your furnace cannot vibrate as it runs. It is not a higher pitched squeek, but more like an engine. If it becomes annoying, some solutions are sealing and insulation, a duct replacement or an air filter replacement. Since there are several parts to your heating system that could be causing a noisy furnace, let’s take a look at each one and see what methods and/or repairs are necessary to make it quieter. When I installed “better” (I.e. And let’s not forget the array of burners we are all too aware of when one fires up. It was so loud, especially in the rooms next to the furnace room. Like 75-85db when running. It is moving air and the cage is spinning. First, is the gas burners. Another cause of a loud boom or bang is an unbalanced air-to-fuel ratio. When you do your maintenance checks, make sure that all the moving parts are lubricated. The whistle should stop once this is patched. Your burners should be regularly cleaned to avoid this issue. If you are familiar with how to do it, you can add lubrication to the motor yourself. My Heat Won’t Turn On! If your burners are clean, you will want a professional to inspect the situation. I have a little living room in the basement, and this thing is so loud that I have to turn up the TV when it kicks on. With colder weather approaching, it’s essential that your furnace is up and running and performing at its best so that you don’t find yourself dealing with costly repairs or dangers like gas leaks. Make sure that your furnace filter is clean and isn’t restricting airflow by being dirty. With a 92% AFUE rating, the XB90 qualifies as a “high efficiency” furnace. The dirt causes a delay when igniting, which leads to excessive gas buildup, so when the burners finally do light, it creates that loud banging noise you hear. So if you’re replacing an older, standard or lower rated unit, you can still see noticeable energy savings. What Could Be Causing Your Winter Woes, How to Have a Warm Home This Pennsylvania Winter, Seasonal Maintenance: 5 HVAC Tips for Winter Months. If you’re in another room from the furnace and you hear a lot of noise (like a motorcycle is idling on the other side), it’s most likely because the furnace is not secured well enough to the floor or wall. Know there might be different causes Although most furnace noises are a direct result of issues with the blower fan or blower motor, it is important that you keep an open mind. In this Gas Furnace Guide, we delve into what makes furnaces so loud, and how you can make sure you get one of the quietest gas furnaces when you have to replace the old one! You can access your drive belt through the main access panel on the front or side of your furnace–where this type of furnace noise will be coming from. Why Is My Furnace So Loud? Please help. But if you have an unusually noisy airy sound from your furnace (i.e. You can make adjustments on your own, but you shouldn’t attempt to replace a damaged belt by yourself. Now you know the common faults with furnaces, and how to fix them. It could also be a sign that the metal panning may not have been secured correctly. You can test your capacitor to see if it’s holding charge or simply replace if you have an older furnace. Why Is My Furnace So Loud? by Williams Service Company | Oct 30, 2018 | Heating | 0 comments. Your service professional will be able to advise on what action is needed. Posted on: November 28, 2017 Some noise is to be expected when your furnace is running, such as the sound of rushing air from the vents, a rumble when the blower is spinning, or a popping sound as air ducts expand and contract with changing temperatures and pressures. So at this point Im even more confused. York, Pennsylvania 17403. There are a number of reasons your furnace or heating system is making loud noises. Gas burners inside gas furnaces, ignite and fire as gas flows in. The motor for the blower makes noise as it works to spin the fins, which get air moving. This is dangerous as it can delay the ignition. Here’s a common issue we hear from homeowners with furnaces: “ Noisy Indoor Unit, Loud Furnace: Noisy indoor unit, air handler, or furnace are all very common complaints in the HVAC field. If your issue is too much for you to handle, or you just want some professional help, contact us at Williams Service Company. First the fan kicks on , not too bad, then when the gas ignites, it sounds like a Mack Truck coming through the house, it roars, then the blower kicks on.