Stop immediately if you smell gas when checking the furnace; turn the furnace off and leave the home. A loose drive belt could be causing the fan to operate improperly and make excessive noise as it spins unevenly. However, this does not mean that a whistling furnace is normal. When you’re noticing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. Furnace Makes a Whistling Sound One of the most common unpleasant furnace noises is a whistling sound. This may be from the whirr of the pump or the hum of a fan. Think of it like whistling compared to normal breathing: When you whistle, you have to pucker and tighten your lips to create a small passageway for the air to pass through, which makes the high-pitched sound. One such problem is if the furnace is making a humming noise, which can potentially be solved with some troubleshooting techniques. The air moving through them makes noise, and a variety of factors can make air movement more (or less) audible. In the meantime, you can get an idea of what may be wrong with your furnace if it’s making one of these noises: Whistling. Other than the noise generated by the dirty filters, the dirt also contributes to the wear and tear of your fan’s motor since it overworks to blow air through the small openings left on your filters. Greetings all, I have a filter installed at the bottom of my furnace where the blower fan is located in addition to the normal return filter upstairs. If you hear a whistling noise coming from your furnace, there could be a loose connection or hole in your ducts causing air to escape. If you’ve looked at your vents but are still sensing noise, Kirkfield Heating & Air Conditioning can help. Squealing Noises. However, this does not mean that a whistling furnace is normal. We just had a Lennox furnace installed by reputable service people, and now there is a noise like a ships whistle blowing just before it leaves port for about 7 to 10 seconds before the furnace fan starts to blow hot air. If you’ve looked at your vents but are still sensing sound, Oak Grove Heating & Air Conditioning can help. He checked CO, gas pressure and a few other things, and told me nothing is wrong. Poor connection to your main ducting line and deteriorating ductwork are the common causes of leaks in HVAC units. Furnace Whistling 5 /8 That could mean that your filter needs to be changed , which is causing the furnace to overcompensate and eventually suck exhaust gases into the home. The furnace is located in the attic. If your ducts are too small, then suction is created during the flow of air through your furnace. If there’s rattling in your furnace and ducts, such vibrations may have simple … Furnace Making a Whistling Noise. (You'd smell gas). A dirty air filter for the supply of heated air to your indoors might be the cause of a whistling sound. The first thing you’ll need to do is find the weak spot in the ducts. Greetings all, I have a filter installed at the bottom of my furnace where the blower fan is located in addition to the normal return filter upstairs. While many aren’t any cause for concern for Framingham-area homeowners, there are 3 furnace noises you should never ignore: Banging Grinding Whining We’ll explore what’s causing these noises and what should be done to stop them. How to Know Whether or Not to Replace a Bathroom Fan, How to Check Evaporator Coils in a Furnace, Trained Eye Home Inspection: Noisy New Furnace, Duct Work Installation: Furnace Air Handler Noise, How to Turn the Blower on Without Running the Furnace, How to Know if Your Air Conditioning Ducts Need Cleaning, HVAC Air Conditioner Problem-Solving Tips. If you can’t find any another cause for the noise, it could be a sign that your ducts are improperly sized; your furnace wants a greater flow of air. If the gas supply valve is defective or the burner chambers are dirty, the gas may make a whistling noise when passing through the system. What Makes a Refrigerator Motor Make Whistling Sounds? The ignition system is responsible for creating combustion, which is how your furnace creates heat. The leaks waste your energy and will cause unnecessarily high energy costs. A professional should be contacted to inspect and clean the furnace or replace the gas valve if necessary. You could also be aware of whistling while the furnace is on if a floor vent isn’t secure. Improperly sized HVAC ducts are a common occurrence in systems that are not professionally installed. Showing 1-8 of 8 messages. Often, it will be a small hole or gap near the connecting point between the furnace and duct. If you’ve examined your vents but are still hearing sound, J.R. The high gas pressure is the cause of the whistling sound. This type of noise is a sign there's something wrong with the furnace's motor, belt, or bearing. If the humming noise gets louder the closer you get to the boiler, start looking for: Loose brackets. If this is the issue causing the noise in your furnace, an overhaul of the ducts for others that are the proper size is the solution. When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. Whistling furnaces can be shrill and may be quite loud or fairly subtle depending on the type of furnace and the nature of the issue itself. Furnace SL280 UHV 090XV48B, Serial 5916H26241 by Lennox. Your furnace creates the air flow to conduct heat in your home. Discussion Starter • #1 • Jan 24, 2008. This is usually the result of a dirty air filter or the use of a high density (Merv) filter that chokes off the air flow. You might also notice whistling while the furnace is working if a floor vent is loose. If this is the issue causing the noise in your furnace, an overhaul of the ducts for others that are the proper size is the solution. the same amount of air is traveling through a smaller area. This is a common problem that our technicians deal with frequently. If your furnace starts to make scraping noises, especially the sound of metal scraping metal, something is likely loose and needs to be fixed immediately. Squealing . Chances are, you’re here because your boiler has been making strange noises lately. This issue affects gas-powered furnace systems. Although technology has improved allowing for quieter heater operation, it’s somewhat impossible to make the furnace completely silent since it’s producing heat from the air flow. If the whistling stops as soon as you take the doors off the furnace, it may have gone away just because you've opened up the unit and relieved the suction that was being created. The technician noticed the problem when doing the tune up a month ago. If you’ve looked at your vents but are still sensing sound, Forster Heating can assist you. Open panel/compartments. Noise … A periodic furnace tune-up by professionals can detect the above issues. If the whistling has started recently, it could be a clogged filter. Like furnaces, boilers can be fueled by gas or oil. 1 Furnace making whistling noise. The most frequently reported noise by far is Whistling. The noise only kicks in when burner fires up. While you may need need a professional for this, you can trace the whistling noise yourself by keenly listening to where the noise is coming from. Humming. The noise only kicks in when burner fires up. The reason your air conditioning system is making that noise is because it has low return airflow. As just mentioned, many different parts could be responsible for a furnace that is noisier than normal. Discussion Starter • #1 • Jan 24, 2008. What Causes that Horrible Sound? While you may need need a professional for this, you can trace the whistling noise yourself by keenly listening to where the noise is coming from. This is a common problem that our technicians deal … Strange noises are only one of the signs that your furnace might need repairs. Though designed to enhance your level of comfort, there are times when the furnace will be the primary cause of your discomfort. A loud hum from your air conditioner unit is usually made by the fan. Some noises are normal as pipes, ducts or metal parts heat up and cool down, such as chirping, rattling or a boom. As air is sucked through small spaces, it makes a whistling noise. However, in some cases, the sounds can be really conspicuous, like whistling, rumbling, banging, gurgling, fizzing, and so on. This suction manifests as a whistling sound and stops when you detach the furnace’s doors. If your furnace is rattling or vibrating then we have some simple solutions for … This suction manifests as a whistling sound and stops when you detach the furnace’s doors. Cold weather has arrived, and you turn on your furnace for the first time in several months. 1. Does not happen every time, but it is annoying as you can hear it all through the house, and you know 10 seconds later, the fan will start to blow. The return grille should be sized to match your cooling and heating system system. The service man is coming this Wednesday for the third time. This is because air moving through the duct work in your home makes noise as it passes through. This not only alleviates gas wastage but also protects your property from fire and its occupants from the detrimental impact of inhaling the gas. Whistling furnaces can be shrill and may be quite loud or fairly subtle depending on the type of furnace and the nature of the issue itself. Depending on the extent of your ductwork’s deterioration and the age of your system, a replacement of the ducts might be the solution for your property. Rattling. But when you’re breathing normally, your mouth is … A whistling noise caused by the furnace means that air is escaping somewhere in the system. If you’ve looked at your vents but are still hearing noise, Honke Heating & AC can provide support. If your furnace is making a clicking noise, it usually means there’s an issue with the ignition system. Furnace Makes a Whistling Sound. On 2018-01-18 18:10:49.074989 - by (mod) - Anon The heater may be unsafe if there is a gas leak - in which case I would turn off the gas supply immediately and ventilate the home. Causes for a Furnace Making Noise. Old furnaces can make all sorts of noises. Loud Bang or Boom In this case, the heated air will struggle to pass the space left by the debris and dirt in your filters. Even a loose register cover can create a soft whistling noise if the air pressure is high. Whistling could also mean your filter is clogged. A lot of air is trying to make it through a smaller area, and thus you get the high-pitched whistling noise. When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. When it sstarts up makes a whistling noise that goes away after furnace is fully on. The furnace in my rv just started backfiring and humming/whistling noise what could this be? There are multiple heating options you have for your HVAC system. You might also notice whistling while the furnace is working if a floor vent is loose. When your furnace fan is making noise, it may be dirty or dusty and in need of a good cleaning. Listen closely to locate the source of the whistling and then check for any loose connections. Although these noises do not strictly happen in the furnace compartment, you might hear them and wonder what is falling off down there. My 5 yr old goodman gas furnace started to make whistling noise this season. If you notice some whistling noise coming from your furnace, the duct may be the problem. Rattling and Vibration. A clogged filter forces the fan to suck air from wherever it can. The motor for the blower makes noise as it works to spin the fins, which get air moving. Like furnaces, boilers can be fueled by gas or oil. Furnace Making a Whistling Noise. Rattling – A rattling sound that doesn’t subside could be indicative of worn or broken components in … There is probably a problem with your blower wheel. That means not enough air is moving through its return vents. No whistling when only blower is running. Whistling. A whistling noise caused by the furnace means that air is escaping somewhere in the system. That means not enough air is moving through its return vents. Banging (also whistling or ‘whooshing’) – usually caused by undersized ducts, closed, or plugged vents, or a clogged filter. The cause of this is normally a leakage in the duct. Furnace Whistling 5 /8 That could mean that your filter needs to be changed , which is causing the furnace to overcompensate and eventually suck exhaust gases into the home. If the gas valve is faulty, then this often causes the gas flowing through your system to come out at high pressure. Moving air that is confined to a small space, such as a heating duct, can cause a whistling noise. © Copyright 2020 Hearst Communications, Inc. If you hear a whistling noise coming from your furnace, there could be a loose connection or hole in your ducts causing air to escape. Scraping Noises. One such concern is if the furnace makes a loud noise. When the fan is running a high pitch whining noise is coming from my furnace. A noisy furnace is the most common cause of indoor discomfort related to an HVAC system, especially when it produces a whistling sound. To confirm, remove the air filter. Whining noise from oil burner Hi all, I have a Riello Mectron M5 oil burner which recently started making a high pitched sound when the unit is running. Focus on the Weak Spots. Please help, the service person said it is normal. You may also be aware of whistling while the furnace is operating if a floor vent is loose. You could also notice whistling while the furnace is running if a floor vent isn’t tight. Unlike furnaces, though, boilers involve water—which can leak, have scale (mineral deposits) build-up, … It is particularly louder at the second stage. Help: My boiler is making high pitch noise. If the furnace can’t ignite for some reason, then you may hear a clicking noise as the igniter struggles to light. The reason your air conditioning system is making that noise is because it has low return airflow. There's a good chance they'll be close to where the duct connects to the furnace. Use a flashlight to check areas within easy reach of an air register, or, for safety's sake, call a professional if the source of the noise is out of reach (or if you're unsure as to where it is). If your ducts are too small, then suction is created during the flow of air through your furnace. I checked the furnace's filters and it is a brand new system. Most boilers aren’t silent – they usually make a little bit of sound as part of their normal operation. Have disposable filter in place of electronic 2 pc for a few years. But have no fear, when you start to hear a refrigerator high pitch noise that reminds you of a whistling sound, it usually stems from one of very few places. When your air conditioning system turns on, do you hear a high-pitched whistling noise coming from your vents? 1. Help: My boiler is making high pitch noise. On the other hand, the rumbling noise could be due to pressure differences between the supply and the return ducts. Mechanical LLC can help. A periodic tune-up is a critical element which saves you on costly repairs and prolongs your furnace’s functionality. The whistling noise is normally caused due to excessive airflow through the ducts. Well, for one thing, they can make a lot of different noises: clunking, banging, whistling, and gurgling are just a few. This is almost always located in the lower part of the furnace cabinet. Arrange items in the home away from return-air grilles and maintain a space between objects and the vents and grilles on the furnace. While this is an easy way to start diagnosing your furnace fan noise, there are several other causes of fan sounds. A noisy furnace usually makes annoying whistling, rumbling and banging sounds, but I’m here to help you learn how to effectively reduce unwanted noise. Furnace Making a Whistling Noise. Often all it needs is … By replacing the furnace filter about every 90 days, you will help your heating system to run more quietly, work efficiently, and run cleaner. If this is the issue, try tightening the screws with a screwdriver. If you can hear a rattling noise coming from the furnace, it could be that a panel or screw is … If this is the issue, make sure all compartments are securely closed. Before getting into the nuts and bolts of ductwork and noise levels, let's consider a few noise reduction basics. One of the most common unpleasant furnace noises is a whistling sound. Why is My Heater Whistling? The whistle should stop once this is patched. At the moment, the furnace is one of the most energy-efficient heating options on the market. If the HVAC filter is dirty and clogged, you may notice a whistling sound coming from the system. Other noises may indicate a problem. No whistling when only blower is running. Home | Common Causes of a Whistling Furnace Noise. Does anyone know if there could be any other causes? From moaning and rattling to whistling, your fridge may have you convinced you live in a haunted house instead of simply the refrigerator making noise. Are There Different Types of Dryer Ducts? From bangs and pops in the ductwork, to whistling and humming while the blower runs, most furnace noises are pretty harmless. 1 Furnace making whistling noise. The risk is a fire or explosion. My problem is that when the boiler start going, after about 20 seconds later, I hear a high pitch noise. 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. If you can hear a whistling sound this could be gaps in the duct. If you smell gas in your property, it is prudent to switch off the furnace while you wait for the repair technician to come and repair the valve. It appears to be working, but there is now a whining noise that is making you nervous (and driving you crazy). Here are 3 furnace noises that you should not ignore. And to help you and the many others who have experienced this, we’ve created a soundbank of audio clips along with explanations of what they mean. I've done some surfing on the web and believe it could an imbalanced fan (from dust) or bad bearings. Furnace Making a Whistling Noise. When picked up during the tune-up, fixing them takes a short time, making it cheaper than having to wait until they are evident as a whistling sound. Whistling. It appears to be working, but there is now a whining noise that is making you nervous (and driving you crazy). Common Causes of a Whistling Furnace Noise, Guide to Giving a Good Corporate First Impression with Your Looks, What You Should Learn from School About Running a Business But Never Did, Improving Physical and Mental Health: A Busy Man’s Guide to Wellness, Preparing for Opening an Auto Repair Shop, Tiny Home Living: 4 Things You Need to Know. If tightening loose points in duct work does not stop the whistling, consider slowing down the speed of the fan, which will reduce the air pressure. But, there are some more serious noises to be aware of. But, to determine why your furnace is making a loud noise, you’ll first need to know what kind of noise your furnace is making. A dirty or frozen Air Conditioner coil (Evaporator) can generate the same noise. Although technology has improved allowing for quieter heater operation, it’s somewhat impossible to make the furnace completely silent since it’s producing heat from the air flow. This problem is usually caused by one of four things: Dirty air filters When you’re hearing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. This is because it can run on different types of fuel and there have been various technologies to improve its energy efficiency. When you’re detecting your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. A high-pitched squealing noise could mean a number of things, but generally, it is … Johnny Ng: 12/6/96 12:00 AM: Hi, I think my boiler / Central heating system is going to be sick. Try to locate the source of the whistling. Frequently, a furnace will start to make whistling noises as a result of a tiny gap between the blower and the ductwork. When you’re hearing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. Dirty Burners. Moreover, the sound comes from the in drawing of air from your interiors through mostly blocked air filters. You might also be aware of whistling while the furnace is running if a floor vent isn’t tight. Gas burners inside gas furnaces, ignite and fire as gas flows in. Rattling and Vibration. The most frequently reported noise by far is Whistling. Various buzzing noises could communicate a loose transformer component in the furnace. The furnace, however, remains the most popular choice. It may a new or rebuilt fan that is forcing air through the ducts with more force, or it could be a loose connection in the ducts. Tran been using e 10 yr old about. Furnace Making a Whistling Noise. If you’ve examined your vents but are still sensing noise, B & B Heating & Cooling can help. First, try to identify roughly where the sound is coming from. Ducts don't make much noise on their own. What are the other signs you might need furnace repair? The following are the common causes of a whistling sound from your furnace. Don’t ignore the following scary furnace sounds. Well, for one thing, they can make a lot of different noises: clunking, banging, whistling, and gurgling are just a few. Unlike furnaces, though, boilers involve water—which can leak, have scale (mineral deposits) build-up, … Resolving the problem may be possible through some troubleshooting efforts. If you hear a sound like a loud bang or boom coming from your furnace, you would … It’s an easy enough fix though – the reason the whistling has started is likely because the air filter is clogged. Even furnaces with the latest and greatest noise-dampening technology aren't entirely silent. When your air conditioning system turns on, do you hear a high-pitched whistling noise coming from your vents? In the meantime, you can get an idea of what may be wrong with your furnace if it’s making one of these noises: Whistling. This problem is usually caused by one of four things: The cause of this is normally a leakage in the duct. First, try to … 58 Posts . Vibration of the unit itself. If you notice some whistling noise coming from your furnace, the duct may be the problem. 58 Posts . Always use extreme caution when working with and around the fan. How to Quiet a Noisy Furnace Blower. Gas furnace whistling noise when firing up My 5 yr old goodman gas furnace started to make whistling noise this season. If your blower wheel is broken, your furnace will not be able to properly heat your home. Be sized to match your cooling and heating system is responsible for a few other things and... 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Of indoor discomfort related to an HVAC system i hear a whistling noise to pass the space by. Through small spaces, it ’ s frequently because of an air leak in your ductwork its return.! At high pressure like furnaces, boilers can be fueled by gas oil. | common causes of a fan the return grille should be sized to match furnace making whistling noise cooling and heating system making. Ducting line and deteriorating ductwork are the common causes of a whistling noise coming from the in drawing air...